CN103437447A - Low-frequency swing-type tuned mass damper - Google Patents
Low-frequency swing-type tuned mass damper Download PDFInfo
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- CN103437447A CN103437447A CN2013104092031A CN201310409203A CN103437447A CN 103437447 A CN103437447 A CN 103437447A CN 2013104092031 A CN2013104092031 A CN 2013104092031A CN 201310409203 A CN201310409203 A CN 201310409203A CN 103437447 A CN103437447 A CN 103437447A
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- 238000013016 damping Methods 0.000 claims abstract description 54
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- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
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Abstract
The invention belongs to the technical field of damping for civil engineering structure, and particularly relates to a tuned mass damper used for controlling the low-frequency vibration of a building structure. The tuned mass damper comprises suspension components, a damping device and a mass block and is characterized by further comprising at least one swing support, when more than one swing support is arranged, the swing supports are nested from outside to inside, the lower part of each swing support is connected with the adjacent suspension component at the outer side of the swing support, and the upper part of the swing support is connected with the adjacent suspension component at the inner side of the swing support; the lower end of the adjacent suspension component at the inner side of the swing support is further connected with the adjacent swing support at the inner side of the suspension component or with the mass block; and the damping device is connected with the mass block. The tuned mass damper is compact in spatial structure, suitable for control on the vibrations of structures with frequencies of 0.15 Hz and even lower, great in cost performance, capable of effectively expanding the application range of swing-type tuned mass damper products, and very wide in market application prospect.
Description
Technical field
The invention belongs to the civil engineering structure antivibration area, be specifically related to a kind of for controlling the tuning mass bumper of building structure low frequency vibration.
Background technology
Development along with urban construction, various high levels, super highrise building and thin and tall structure, long span building thing are increasing, the realistic problem of having to address in becoming engineering construction in this class large span of control, the resonance of low frequency configuration thing failure, facts have proved, tuning mass bumper (also has in document and claims tuned mass damper, tuned mass damper or claim mass tuning damper, also be called for short TMD herein) be a kind of effective vibration control apparatus, its intrinsic frequency is adjusted to the natural frequency that approaches structure, then installed structurally.When structure is subject to exciting force interference vibration-generating, cause the resonance of mass tuning damper, utilize the vibrating inertia force of tuning quality to react on structure itself, thereby offset exciting force, reach the purpose that reduces structural response.Want to bring into play to greatest extent the damping effect of mass tuning damper, require its intrinsic frequency consistent with the natural frequency of main structure as far as possible, otherwise the effectiveness in vibration suppression of TMD will decline to a great extent.Because the mass of tuning mass bumper is big or small and proportional by the gross weight of vibration-proof structure, for heavy construction structures such as skyscraper, its quality is huge, required TMD quality is generally all at hundreds of tons, the spring cost of high rigidity is high, manufacture is difficult for, therefore this type of large-scale TMD substantially adopts the pendulum-type structure at present, and the patent of invention that for example application number is 201310080464.3 discloses a kind of like this pendulum-type eddy current tuned mass damper device.
According to theoretical mechanics general knowledge, the intrinsic frequency of this type of pendulum-type tuning mass bumper and the relation of pendulum length as shown in Equation (1):
Wherein: f is frequency, and unit is Hz; π is pi, and concrete Selecting All Parameters value is 3.14; G is acceleration of gravity, and concrete Selecting All Parameters value is 9.8m/s; L is pendulum length, and unit is m.
The corresponding relation that can be obtained part intrinsic frequency and pendulum length by the design formulas (1) of intrinsic frequency is as shown in the table:
| f(Hz) | L(m) |
| 0.5 | 0.993955 |
| 0.4 | 1.553055 |
| 0.3 | 2.760986 |
| 0.2 | 6.21222 |
| 0.15 | 11.04395 |
| 0.1 | 24.84888 |
| 0.05 | 99.39551 |
As seen from the above table, existing pendulum-type tuning mass bumper is unsuitable for controlling the low frequency vibration of intrinsic frequency lower than 0.15Hz, is mainly because required pendulum length is excessive, need to take too many installing space, applicability is poor, in real engineering, substantially all can't meet so large space requirement.
In summary it can be seen, on the one hand, existing pendulum-type tuning mass bumper is difficult to be applicable to the following low frequency vibration of 0.15Hz; On the other hand, the skyscraper that hundreds of rice is high is more and more, and the wind vibration frequency of these skyscraper often is low to moderate the 0.1Hz level, and the market an urgent demand provides a kind of tuning mass bumper product that low-frequency structure vibration is controlled that goes for.
Summary of the invention
The object of the invention is to overcome above-mentioned defect, a kind of space structures compactness is provided, go for the even more low frequency pendulum-type tuning mass bumper of low frequency structural vibration control of 0.15Hz.
Low frequency pendulum-type tuning mass bumper of the present invention is to realize like this, comprise suspension elements, damping unit and mass, characterized by further comprising at least one swinging mounting, when the swinging mounting setting surpasses one, swinging mounting is nested arrangement each other from outside to inside, the bottom of each swinging mounting suspension elements adjacent with its outside is connected, and top is connected with its inboard adjacent suspension elements; The bottom of the adjacent suspension elements in described inboard is connected with this suspension elements inboard adjacent swinging mounting or mass again; Damping unit is connected with mass.
Low frequency pendulum-type tuning mass bumper of the present invention can also arrange main support, main support is located at all swinging mountings outside, main support top is connected with its inboard adjacent suspension elements, and adjacent suspension elements bottom, this inboard is connected with its inboard adjacent swinging mounting.
The appearance profile of described swinging mounting is varied, can be multiple frustum shape, comprising the frustum of a cone, Rhizoma Sparganii frustum, tetragonous cone table, pentagonal pyramid platform, hexagonal pyramid platform, seven frustum of a pyramids and eight frustum of a pyramids etc., can certainly be nine pyramids, ten pyramids or other frustum shapes.
Described suspension elements comprises cable wire and steel rod member.For the ease of the adjustment System frequency, the rope length regulating device can be set.Can to be specifically that rope is long regulate support to the rope length regulating device, or the rope length regulating device comprises holder and telescopic, between holder and telescopic, by helicitic texture, is connected, and cable wire passes the centre bore of holder and telescopic vertically.In addition, can also comprise the system frequency adjusting device in low frequency pendulum-type tuning mass bumper of the present invention, described system frequency adjusting device comprises fixed interface and spring, fixed interface comprises architecture basics or is fixed on the limited block on architecture basics, spring is arranged between fixed interface and mass, and spring along level in twos one group at the setting of mass bilateral symmetry or spring along level to being evenly arranged in the mass surrounding.
The damping unit that is applicable to low frequency pendulum-type tuning mass bumper device of the present invention is varied, and described damping unit comprises the specific constructive form such as hole throttle type damper, viscous formula damper, friction damper, MR damper and eddy current damper.
In addition, for limiting between swinging mounting or relative torsion and swing between swinging mounting and main support, prevent from bumping to each other or swiping, affect the effectiveness in vibration suppression of low frequency pendulum-type tuning mass bumper of the present invention, can also in low frequency pendulum-type tuning mass bumper of the present invention, set up stable damping unit.Described stable damping unit is arranged between main support and swinging mounting or/and between adjacent swinging mounting.The two ends of stablizing damping unit connect with adjacent main support or swinging mounting by the first-class articulated structure of Universal connector, with the multiple directions that adapt to swinging mounting or main support, move.
In addition, in order to prevent that the amplitude of oscillation is excessive and treat that vibration-proof structure bumps, in low frequency pendulum-type tuning mass bumper of the present invention, can also comprise stopping means.Described stopping means comprises spacing voussoir, and the wedge-like engagement face arranged on mass or wedge shape brake block, and spacing voussoir is fixedly installed on architecture basics.For the consideration that improves spacing ability, can also be in spacing voussoir end face, wedge-like engagement face surface or wedge shape brake block end face at least one place fixedly brake block or rubber tile, perhaps spacing voussoir end face is provided with convex-concave structure, and wedge-like engagement face surface or wedge shape brake block end face are provided with the convex-concave structure coordinated with it.
Low frequency pendulum-type tuning mass bumper of the present invention, by setting up swinging mounting, each root suspension elements of the elongated setting of tradition is decomposed into to several that are set up in parallel, effectively shortened the installation length of suspension elements, significantly reduce the actual required installing space of low frequency pendulum-type tuning mass bumper of the present invention, it has overcome the existing problem of tuning mass bumper of existing pendulum-type structure, go for controlling the following low-frequency structure vibration of 0.15Hz, greatly improved applicability and the practicality of product.
The space structures compactness of low frequency pendulum-type tuning mass bumper of the present invention, go for the even more control of low frequency structural vibration of 0.15Hz, cost performance is very superior, and it has effectively enlarged the scope of application of pendulum-type tuning mass bumper product, and market application foreground is very wide.
The accompanying drawing explanation
The structural representation that Fig. 1 is low frequency pendulum-type tuning mass bumper of the present invention in embodiment mono-and application schematic diagram.
The A-A sectional view that Fig. 2 is Fig. 1.
The structural representation that Fig. 3 is low frequency pendulum-type tuning mass bumper of the present invention in embodiment bis-and application schematic diagram.
The B-B sectional view that Fig. 4 is Fig. 3.
The structural representation that Fig. 5 is low frequency pendulum-type tuning mass bumper of the present invention in embodiment tri-and application schematic diagram.
The C-C sectional view that Fig. 6 is Fig. 5.
The structural representation that Fig. 7 is low frequency pendulum-type tuning mass bumper of the present invention in embodiment tetra-and application schematic diagram.
The D-D sectional view that Fig. 8 is Fig. 7.
The structural representation that Fig. 9 is low frequency pendulum-type tuning mass bumper of the present invention in embodiment five and application schematic diagram.
The E-E sectional view that Figure 10 is Fig. 9.
The structural representation that Figure 11 is low frequency pendulum-type tuning mass bumper of the present invention in embodiment six and application schematic diagram.
The structural representation that Figure 12 is low frequency pendulum-type tuning mass bumper of the present invention in embodiment seven and application schematic diagram.
The specific embodiment
Embodiment mono-
Low frequency pendulum-type tuning mass bumper of the present invention as depicted in figs. 1 and 2, comprise suspension elements 2, suspension elements 4, damping unit 6 and mass 5, in addition, also comprise swinging mounting 3, the appearance profile of swinging mounting is cube, the fishplate bar 9 that hangs that swinging mounting 3 is fixedly installed by bottom is connected with the suspension elements 2 in the outside, and swinging mounting 3 also is fixedly installed by top hangs and connect beam 10 and be connected with inboard suspension elements 4; The bottom of described suspension elements 4 is connected with the inboard mass 5 arranged of swinging mounting 3; Damping unit 6 is arranged on the below of mass 5.Wherein, the steel rod member that suspension elements 2 forms for rod iron, the cable wire that suspension elements 4 forms for steel strand; Damping unit 6 is comprised of a plurality of hole throttle type dampers, and described hole throttle type damper is evenly arranged along four limits, mass 5 bottom surface; Mass 5 is combined by plurality of steel plates, and is connected by the securing member (not shown).
During application, as shown in Figure 2, treat to be fixedly installed in advance anchoring piece 8 in the superstructure 1 of vibration damping building structure, the top of the suspension elements 2 in low frequency pendulum-type tuning mass bumper of the present invention is connected with the superstructure 1 for the treatment of vibration damping building structure by anchoring piece 8 and flexural pivot 30, damping unit 6 one ends utilize universal joint (not specifically illustrating in figure) to be hingedly fixed on mass 5, the other end utilizes universal joint to be hingedly fixed in to treat 7 surfaces, substructure basis of vibration damping building structure, complete the installation of low frequency pendulum-type tuning mass bumper of the present invention in treating vibration damping building structure.The operating principle of low frequency pendulum-type tuning mass bumper of the present invention and traditional pendulum-type tuning mass bumper is basic identical, when being subject to the exciting forces such as wind-force or earthquake when building structure and disturbing vibration-generating, cause that in low frequency pendulum-type tuning mass bumper of the present invention, mass swings, because there are phase difference in the swing of mass and the swing of building structure, the two swaying direction is contrary, therefore can utilize the swing inertia force of mass to react on structure itself, thereby counteracting exciting force, reach the purpose that reduces the building structure reaction, mass is in the process swung, the damping unit be connected with mass is forced to work, constantly consume the energy of mass, by above process, energy dissipation while finally realizing building construction vibration is fallen.With the difference of traditional pendulum-type tuning mass bumper, be, low frequency pendulum-type tuning mass bumper of the present invention, by setting up swinging mounting 3, whole suspension elements of the elongated setting of tradition is decomposed into to suspension elements 2 and the suspension elements 4 be set up in parallel, effective swing active length of suspension elements 2 adds that effective swing active length of suspension elements 4 is the real work pendulum length of low frequency pendulum-type tuning mass bumper of the present invention, this structural change, effectively shortened the installation length of suspension elements, significantly reduce the actual required installing space of low frequency pendulum-type tuning mass bumper of the present invention, it has overcome the existing problem of tuning mass bumper of existing pendulum-type structure, go for controlling the following low-frequency structure vibration of 0.15Hz, applicability and the practicality of product have greatly been improved.
Based on this routine described know-why, the steel rod member used as suspension elements can also utilize the materials such as steel pipe, reinforcing bar to form, and the cable wire used as suspension elements can also utilize the materials such as steel wire, chain to form; In addition, take in this example and eight suspension elements 2 and four suspension elements 4 are set describe as example, in actual applications, the quantity of suspension elements can be set according to requirement of engineering; In addition, damping unit, except already mentioned hole throttle type damper, also can adopt the other forms of dampers such as viscous formula damper, friction damper, MR damper and eddy current damper; The 4th; kind difference according to suspension elements; the concrete connected mode of suspension elements and swinging mounting or building structure can be what time various, can be for example that the ball pivot of mentioning in embodiment connects, suspension ring connect, and for flexible cable wire, also can adopt and be fixedly connected with; be noted that especially; if when controlling single vibration, can also adopt bearing pin hinged, all be based on the simple change of the technology of the present invention principle; can realize good effect, among the protection domain all required in the present invention.
In sum, the space structures compactness of low frequency pendulum-type tuning mass bumper of the present invention, stable performance, go for the even more control of low frequency structural vibration of 0.15Hz, cost performance is very superior, it has effectively enlarged the scope of application of pendulum-type tuning mass bumper product, and market application foreground is very wide.
Embodiment bis-
Low frequency pendulum-type tuning mass bumper of the present invention, be with the difference of embodiment mono-as shown in Figure 3 and Figure 4, and suspension elements 2 and suspension elements 4 all adopt cable wire to form; In addition, also comprise the long adjuster 13 of main support 11 and rope, main support 11 is arranged on swinging mounting 3 outsides, main support 11 tops are connected with its inboard adjacent suspension elements 4, adjacent suspension elements 4 bottoms, this inboard are connected with swinging mounting 3, and the long adjuster 13 of rope is arranged between swinging mounting 3 and suspension elements 4; In addition, damping unit 6 adopts viscous formula damper, and the upper/lower terminal of viscous formula damper is connected with the substructure basis 7 for the treatment of vibration damping building structure with mass 5 respectively.
Owing to having set up main support 11, the layout of this routine described low frequency pendulum-type tuning mass bumper of the present invention in treating vibration damping building structure is freer.In addition, in application, can change effective work pendulum length of suspension elements 4 by the position that moves up and down the long adjuster 13 of rope, and then change the real work pendulum length of low frequency pendulum-type tuning mass bumper of the present invention, realize the purpose of the intrinsic frequency of adjusting low frequency pendulum-type tuning mass bumper of the present invention.
Embodiment tri-
In the present invention, a plurality of swinging mountings can be set, when swinging mounting quantity surpasses one, swinging mounting is nested arrangement each other from outside to inside, and the bottom of each swinging mounting suspension elements adjacent with its outside is connected, and top suspension elements adjacent with its inboard is connected; The bottom of the adjacent suspension elements in described inboard is connected with this suspension elements inboard adjacent swinging mounting or mass again.The low frequency pendulum-type tuning mass bumper of the present invention that two swinging mountings are set of below take describes as example.Low frequency pendulum-type tuning mass bumper of the present invention as shown in Figure 5 and Figure 6, with the difference of embodiment mono-, be, comprise swinging mounting 3 and swinging mounting 14, the appearance profile of swinging mounting 3 and swinging mounting 14 all is up-thin-low-thick circular cone shape, suspension elements 15, suspension elements 16 and suspension elements 17 all adopt cable wire to form, swinging mounting 14 is nested in swinging mounting 3, the bottom of swinging mounting 3 is connected with the suspension elements of its arranged outside 15, the top of swinging mounting 3 is connected with its inboard suspension elements 16 arranged, the bottom of suspension elements 16 swinging mounting 14 adjacent with inboard is connected, the top of swinging mounting 14 is connected with its inboard suspension elements 17 arranged, the bottom of suspension elements 17 mass 5 adjacent with inboard again is connected, in addition, damping unit 6 comprises four viscous formula dampers, and four viscous formula dampers are evenly arranged at the side-lower of mass 5, in addition, also comprise the rope length regulating device, the rope length regulating device comprises holder 18 and telescopic 19, wherein, holder and swinging mounting 3 are welded and fixed and are integral, between holder 18 and telescopic 19, by helicitic texture, be connected, the suspension elements 15 that cable wire is made is vertically through the centre bore of holder 18 and telescopic 19.
During application, treat to be fixedly installed in advance anchoring piece 8 in the superstructure 1 of vibration damping building structure, the top of the suspension elements 15 in low frequency pendulum-type tuning mass bumper of the present invention is connected with anchoring piece 8, in damping unit 6, the upper/lower terminal of each viscous formula damper is connected with the architecture basics 7 for the treatment of vibration damping building structure lower floor with mass 5 respectively, completes the installation of low frequency pendulum-type tuning mass bumper of the present invention in treating vibration damping building structure.Its operating principle and embodiment mono-are basic identical, at this, no longer repeat to describe.With embodiment mono-, compare, in this example, by swinging mounting 3 and swinging mounting 14 are set, the whole suspension elements that tradition is arranged usually is decomposed into suspension elements 15, suspension elements 16 and the suspension elements 17 be set up in parallel, be conducive to further shorten the installation length of suspension elements, the required installing space height of distilled edition invention low frequency pendulum-type tuning mass bumper, the scope of application of improving product.In addition, owing to being provided with the rope length regulating device, with respect to the position of holder 18, just can change effective wobble length of suspension elements 15 by regulating telescopic 19 in the rope length regulating device, and then realize the purpose of the system frequency of adjustment low frequency pendulum-type tuning mass bumper of the present invention.Certainly, in this example, only in the corresponding suspension elements 15 in the bottom of swinging mounting 3, be provided with the rope length regulating device, based on this know-why, also can the rope length regulating device be set in the corresponding suspension elements 15 in the top of swinging mounting 3; Or/and in the corresponding suspension elements 16 and 17 in the upper and lower part of swinging mounting 14, the rope length regulating device is set; Or/and corresponding suspension elements 15 arranges the rope length regulating device on anchoring piece 8, can realize same purpose, in the protection domain all required in the present invention, at this, only with word, be described accompanying drawing explanation no longer in addition.In addition; except the frustum of a cone; the appearance profile of swinging mounting can also be arranged to multiple other frustum shapes; for example the frustum shape of Rhizoma Sparganii frustum, tetragonous cone table, pentagonal pyramid platform, hexagonal pyramid platform, seven frustum of a pyramids, eight frustum of a pyramids, nine frustum of a pyramids, ten frustum of a pyramids, even more ribs or erose frustum etc.; mass is arranged to respective shapes; also can realize good effect; can select as required concrete structure in actual applications, in the middle of the protection domain all required in the present invention.
It is to be noted; this example only be take and two swinging mountings are set are described as example; in actual applications; according to requirement of engineering; three, four even more swinging mountings also can be set; these all are based on the simple change of the technology of the present invention principle, among the protection domain all required in the present invention.
Embodiment tetra-
Low frequency pendulum-type tuning mass bumper of the present invention, be with the difference of embodiment tri-as shown in Figure 7 and Figure 8, and the appearance profile of swinging mounting 3 and swinging mounting 14 all is up-thin-low-thick tetragonous cone table shape; Be provided with and stablize damping unit 34 between swinging mounting 3 and swinging mounting 14.Two ends and the swinging mounting of stablizing damping unit 34 are used hinge-coupled.Articulated structure is ball pivot (not specifically illustrating in figure).In addition, the viscous formula damper that damping unit 6 is arranged by mass 5 belows forms; In addition, also comprise stopping means, described stopping means comprises spacing voussoir 20, and the wedge shape limited block 40 arranged on mass 5, and spacing voussoir 20 is fixedly installed on the architecture basics 7 of building lower floor.
In this routine described technical scheme, stablize damping unit 34 and can limit and reduce relative swing and the torsion between swinging mounting 3 and swinging mounting 14, contribute to guarantee effectiveness in vibration suppression.Stablize damping unit 34 and use spherical hinge structure (not specifically illustrating in figure) to connect with swinging mounting 3 and swinging mounting 14, can adapt to the multiple swaying direction of swinging mounting.
The design limit value that the position of spacing voussoir 20 swings displacement by mass 5 is determined.Owing to being provided with stopping means, when building structure has occurred to surpass the vibration of design load, in low frequency pendulum-type tuning mass bumper of the present invention, the amplitude of oscillation of mass can exceed the design limit value, now, the wedge shape limited block 40 of mass bottom can touch spacing voussoir 20 upper surfaces, because spacing voussoir 20 is fixedly installed on the architecture basics 7 of building lower floor, it can provide the powerful spacing amplitude of oscillation of trying hard to keep the card mass can not continue to increase, the swing of mass is controlled within the specific limits all the time, until locked on spacing voussoir 20, therefore can not produce harmful effect to building structure, more safe and reliable.If the generation deadlock phenomenon, after building construction vibration is eliminated, can lift mass 5 with spacing voussoir 20 and separate by instruments such as jack, make mass 5 state that again affranchises.Certainly, except wedge shape limited block 40 is set on mass 5, also can process the wedge-like engagement face on mass 5, also can realize same effect, only describe with word at this, no longer other accompanying drawing, among the protection domain all required in the present invention.
Embodiment five
Low frequency pendulum-type tuning mass bumper of the present invention as shown in Figure 9 and Figure 10, with the difference of embodiment tetra-, be, utilize the system frequency adjusting device to substitute the frequency of rope length regulating device for regulating system, described system frequency adjusting device comprises fixed interface and spring 22, fixed interface is specially limited block 23, limited block 23 and spacing voussoir 20 integrated setting also are fixed on the architecture basics 7 of building lower floor, spring 22 is arranged between limited block 23 and mass 5, and spring 22 along level in twos one group in mass 5 bilateral symmetry settings; In addition, spacing voussoir 20 end faces are fixed with rubber tile 24.
With embodiment tetra-, compare, in this routine described technical scheme, utilize the system frequency adjusting device to substitute the frequency of rope length regulating device for regulating system, during application, by changing the global stiffness of all springs 22, just can realize the purpose of regulating system frequency, concrete spring or the technological means such as increase and decrease number of springs that can be by changing different-stiffness realize.Certainly; the routine know-why based on this; also can in low frequency pendulum-type tuning mass bumper of the present invention, system frequency adjusting device and rope length regulating device be set simultaneously; be conducive to the intrinsic frequency of adjustment System more accurately; improve effectiveness in vibration suppression; also can realize good effect, among the protection domain all required in the present invention.In addition, owing at spacing voussoir 20 end faces, being fixed with rubber tile 24, when wedge shape limited block 40 being set on mass 5 bumping with spacing voussoir 20, rubber tile 24 can play cushioning effect effectively, prevents that wedge shape limited block 40 from spacing voussoir 20, the rigidity collision occurring and causing damage.Based on this know-why; can also adopt develops many similar technology schemes; for example; can be in spacing voussoir end face, wedge-like engagement face surface or wedge shape brake block end face at least one place fixedly brake block or rubber tile; perhaps spacing voussoir end face is provided with convex-concave structure; wedge-like engagement face surface or wedge shape brake block end face are provided with the convex-concave structure of cooperation with it etc., can realize good effect, among the protection domain all required in the present invention.
It is to be noted, in this example, the cross section of take describes as square mass as example, in actual applications, shape difference according to main support and swinging mounting, the shape of cross section of mass can be also rectangle, circular, rhombus, other shapes such as triangle, for difform mass, the set-up mode of system frequency adjusting device medi-spring is distinguished to some extent, for example, in this example, for shape of cross section, it is square mass, spring 22 along level in twos one group in mass 5 bilateral symmetry settings, if shape of cross section is circular mass, spring also can be along level to being evenly arranged in the mass surrounding, such as three springs are set altogether, three springs are along level in the mass surrounding, being evenly arranged and can realizing described frequency modulation function, also can realize good effect, among the protection domain also required in the present invention, at this, only with word, be described, accompanying drawing for example no longer in addition.Be noted that in addition; in system frequency adjusting device of the present invention; the fixed interface be connected with spring is except can be by additionally being fixed on limited block on architecture basics forms; fixed interface also can be directly consists of the self structure of architecture basics; such as the structures such as the step of spring and integrated setting on architecture basics, post, wall being connected; also can realize same effect, equally only be described with word at this, among the protection domain also required in the present invention.
Embodiment six
Low frequency pendulum-type tuning mass bumper of the present invention as shown in figure 11, with the difference of embodiment tetra-, be, also comprise main support 50, main support 50 is fixedly installed on the architecture basics 7 of building lower floor, main support 50 is located at the outside of swinging mounting 3 and swinging mounting 14, main support 50 tops are connected with its inboard adjacent suspension elements 15, and suspension elements 15 bottoms are connected with its inboard adjacent swinging mounting 3.Arrange and stablize damping unit 53 between main support 50 and swinging mounting 3, between swinging mounting 3 and swinging mounting 14, arrange and stablize damping unit 34.The two ends of stablizing damping unit 53 connect with main support 50 and swinging mounting 3 by articulated structure.The two ends of stablizing damping unit 34 connect in swinging mounting 3 and swinging mounting 14 by articulated structure.Articulated structure is universal joint (not specifically illustrating in figure).Know-why and the embodiment tetra-of this routine described low frequency pendulum-type tuning mass bumper of the present invention are identical, at this, no longer repeat.
It is pointed out that this example only be take arranges two swinging mountings as example describes, and in actual applications, according to requirement of engineering, three, four even more swinging mountings also can be set.In addition, based on embodiment tetra-and this routine described know-why, the arrangement of stablizing damping unit can be varied, stable damping unit can only be arranged between adjacent swinging mounting, also can only be arranged between main support and swinging mounting, can also be arranged between swinging mounting simultaneously and reach between main support and swinging mounting, in addition, stablize the quantity of damping unit, stablizing the position of damping unit on main support or swinging mounting also can set according to requirement of engineering, these all are based on the simple change of the technology of the present invention principle, among the protection domain all required in the present invention.Certainly, based on embodiment tetra-and this routine described know-why, in other technologies scheme of the present invention, also can set up stable damping unit, also can play identical effect, among the protection domain all required in the present invention.
During practical application, quantity and position distribution that flexible member and damping element are used can design as required, and pre-pressing structure also can be selected concrete form of structure as required, among the protection domain all required in the present invention.
Embodiment seven
Low frequency pendulum-type tuning mass bumper of the present invention as shown in figure 12, with the difference of embodiment bis-, be, suspension elements 2 and suspension elements 4 are made by steel pipe, damping unit 6 is symmetricly set on the side of mass 5, wherein, damping unit 6 comprises two hole throttle type dampers, and damping unit 6 one ends utilize universal joint (not specifically illustrating in figure) to be hingedly fixed on mass 5, limited block 60 surfaces that the other end utilizes universal joint to be hingedly fixed in to be fixedly installed on main support 11.In addition, be fixed with respectively otic placode 61 on main support 11, swinging mounting 3 and mass 5, the end of suspension elements 2 and suspension elements 4 is respectively equipped with sleeve pipe 63, utilize bearing pin 62 that sleeve pipe 63 and otic placode 61 are linked together, and then realize being connected of suspension elements 2 and main support 11 and swinging mounting 3, and being connected of suspension elements 4 and swinging mounting 3 and mass 5.
In this example, because pin shaft structure has been selected in the connection of suspension elements, the swaying direction of the low frequency pendulum-type tuning mass bumper of the present invention therefore formed has been subject to strict restriction, is suitable for controlling a certain one direction vibration of building structure.Therefore, as shown in Figure 12, damping unit 6 only is set on the swaying direction of mass 5.
With embodiment bis-, compare, the sharpest edges of this routine described technical scheme are, damping unit 6 is arranged on mass 5 sides, be conducive to further reduce the overall height of low frequency pendulum-type tuning mass bumper of the present invention, save installing space, thereby facilitate fitting operation, and improve the applicability of product.
The space structures compactness of low frequency pendulum-type tuning mass bumper of the present invention, stable performance, go for the even more control of low frequency structural vibration of 0.15Hz, and cost performance is very superior, it has effectively enlarged the scope of application of pendulum-type tuning mass bumper product, and market application foreground is very wide.In addition, the embodiment in the present invention is only better explanation technical scheme of the present invention, should not be considered as limitation of the present invention, and wherein the technical characterictic in many embodiment also can cross-reference.Based on the technology of the present invention principle; those skilled in the art can re-start combination or utilize similar technology simply to replace some element wherein the described technical scheme of above-described embodiment; as long as based on know-why of the present invention, in the protection domain all required in the present invention.
Claims (13)
1. a low frequency pendulum-type tuning mass bumper, comprise suspension elements, damping unit and mass, characterized by further comprising at least one swinging mounting, when the swinging mounting setting surpasses one, swinging mounting is nested arrangement each other from outside to inside, the bottom of each swinging mounting suspension elements adjacent with its outside is connected, and top is connected with its inboard adjacent suspension elements; The bottom of the adjacent suspension elements in described inboard is connected with this suspension elements inboard adjacent swinging mounting or mass again; Damping unit is connected with mass.
2. low frequency pendulum-type tuning mass bumper according to claim 1, characterized by further comprising main support, main support is located at all swinging mountings outside, main support top is connected with its inboard adjacent suspension elements, and adjacent suspension elements bottom, this inboard is connected with its inboard adjacent swinging mounting.
3. low frequency pendulum-type tuning mass bumper according to claim 1, is characterized in that the appearance profile of swinging mounting is the frustum shape, comprises the frustum of a cone, Rhizoma Sparganii frustum, tetragonous cone table, pentagonal pyramid platform, hexagonal pyramid platform, seven frustum of a pyramids and eight frustum of a pyramids.
4. low frequency pendulum-type tuning mass bumper according to claim 1, is characterized in that suspension elements comprises cable wire and steel rod member.
5. low frequency pendulum-type tuning mass bumper according to claim 4, characterized by further comprising the rope length regulating device.
6. low frequency pendulum-type tuning mass bumper according to claim 5, it is characterized in that the rope length regulating device is the long support of regulating of rope, perhaps the rope length regulating device comprises holder and telescopic, between holder and telescopic, by helicitic texture, be connected, cable wire is vertically through the centre bore of holder and telescopic.
7. low frequency pendulum-type tuning mass bumper according to claim 1, characterized by further comprising the system frequency adjusting device, described system frequency adjusting device comprises fixed interface and spring, fixed interface comprises architecture basics or is fixed on the limited block on architecture basics, spring is arranged between fixed interface and mass, and spring along level in twos one group at the setting of mass bilateral symmetry or spring along level to being evenly arranged in the mass surrounding.
8. low frequency pendulum-type tuning mass bumper according to claim 1, is characterized in that damping unit comprises hole throttle type damper, viscous formula damper, friction damper, MR damper and eddy current damper.
9. low frequency pendulum-type tuning mass bumper according to claim 1, characterized by further comprising stopping means.
10. low frequency pendulum-type tuning mass bumper according to claim 9, is characterized in that described stopping means comprises spacing voussoir, and the wedge-like engagement face arranged on mass or wedge shape brake block, and spacing voussoir is fixedly installed on architecture basics.
11. low frequency pendulum-type tuning mass bumper according to claim 10, it is characterized in that in spacing voussoir end face, wedge-like engagement face surface or wedge shape brake block end face at least one place fixedly brake block or rubber tile, perhaps spacing voussoir end face is provided with convex-concave structure, and wedge-like engagement face surface or wedge shape brake block end face are provided with the convex-concave structure coordinated with it.
12. low frequency pendulum-type tuning mass bumper according to claim 1 and 2, characterized by further comprising stable damping unit.
13. low frequency pendulum-type tuning mass bumper according to claim 12, is characterized in that stablizing damping unit and be arranged between main support and swinging mounting or/and between adjacent swinging mounting.
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| CN201310409203.1A CN103437447B (en) | 2013-09-10 | 2013-09-10 | Low-frequency swing-type tuned mass damper |
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| CN201310409203.1A CN103437447B (en) | 2013-09-10 | 2013-09-10 | Low-frequency swing-type tuned mass damper |
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| CN103437447B CN103437447B (en) | 2015-07-22 |
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| CN104989005A (en) * | 2015-07-21 | 2015-10-21 | 中国建筑设计院有限公司 | Double-folded-line type TMD control system |
| CN105040990A (en) * | 2015-06-30 | 2015-11-11 | 上海市机械施工集团有限公司 | Construction method and construction device of pendulum electric eddy current tuned mass damper |
| CN105138798A (en) * | 2015-09-18 | 2015-12-09 | 中铁大桥科学研究院有限公司 | Pendulum eddy current tuned mass damper and method for achieving structure vibration reduction |
| CN106337591A (en) * | 2016-09-30 | 2017-01-18 | 陈政清 | Novel pendulum-type eddy current damping tuned mass vibration absorber |
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| KR20190091294A (en) * | 2016-11-29 | 2019-08-05 | 부르크하르트 달 | Small Space Ellipsoid Mass Pendulum |
| CN111926681A (en) * | 2020-07-31 | 2020-11-13 | 中铁大桥局集团有限公司 | Pendulum-type tuned mass damping device and vibration damping bridge |
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| CN105138798A (en) * | 2015-09-18 | 2015-12-09 | 中铁大桥科学研究院有限公司 | Pendulum eddy current tuned mass damper and method for achieving structure vibration reduction |
| CN106337591B (en) * | 2016-09-30 | 2019-01-11 | 陈政清 | A kind of novel pendulum-type eddy-current damping tuning mass bumper |
| CN106337591A (en) * | 2016-09-30 | 2017-01-18 | 陈政清 | Novel pendulum-type eddy current damping tuned mass vibration absorber |
| CN106499762B (en) * | 2016-10-17 | 2018-02-16 | 安徽信泽科技有限公司 | A kind of coiled spring damper of predeterminable early stage rigidity |
| CN106438812A (en) * | 2016-10-17 | 2017-02-22 | 安徽信泽科技有限公司 | Rubber air spring damper with presettable early-stage rigidity |
| CN106382318B (en) * | 2016-10-17 | 2018-06-05 | 泰州市万达轮业制造有限公司 | A kind of coiled spring damper of adjustable early stage rigidity |
| CN106382318A (en) * | 2016-10-17 | 2017-02-08 | 安徽信泽科技有限公司 | Spiral spring damper with early rigidity capable of being adjusted |
| CN110192044B (en) * | 2016-11-29 | 2024-03-15 | 布克哈德·达尔 | Ellipsoid mass pendulum in compact space |
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| KR20190091294A (en) * | 2016-11-29 | 2019-08-05 | 부르크하르트 달 | Small Space Ellipsoid Mass Pendulum |
| CN110192044A (en) * | 2016-11-29 | 2019-08-30 | 布克哈德·达尔 | Ellipsoid Mass Pendulum for Compact Space |
| CN106988592B (en) * | 2017-04-06 | 2019-02-01 | 东南大学 | A kind of swing-type tuned mass damper device |
| CN106988592A (en) * | 2017-04-06 | 2017-07-28 | 东南大学 | A kind of swing-type tuned mass damper device |
| CN109708666B (en) * | 2018-12-26 | 2020-10-16 | 华中科技大学 | Horizontal excitation device for testing cross coupling coefficient of inertial sensor |
| CN109708666A (en) * | 2018-12-26 | 2019-05-03 | 华中科技大学 | A Horizontal Vibration Excitation Device for Cross-coupling Coefficient Testing of Inertial Sensors |
| CN111926681A (en) * | 2020-07-31 | 2020-11-13 | 中铁大桥局集团有限公司 | Pendulum-type tuned mass damping device and vibration damping bridge |
| CN111926681B (en) * | 2020-07-31 | 2022-03-18 | 中铁大桥局集团有限公司 | Pendulum-type tuned mass damping device and vibration damping bridge |
| CN113494204A (en) * | 2020-10-26 | 2021-10-12 | 长江师范学院 | Building shock attenuation wall body |
| CN113494204B (en) * | 2020-10-26 | 2022-09-27 | 长江师范学院 | Building shock attenuation wall body |
| CN113374105A (en) * | 2021-06-18 | 2021-09-10 | 中铁大桥局集团有限公司 | Common-mass multi-frequency tuning mass damping device and parameter design method thereof |
| CN119195366A (en) * | 2024-11-27 | 2024-12-27 | 湖南大学 | A pendulum-type tuned mass vibration damper |
| CN119195366B (en) * | 2024-11-27 | 2025-02-07 | 湖南大学 | Pendulum type tuned mass damper |
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