CN110005901A - A multi-dimensional integrated friction damping tuned mass shock mount - Google Patents
A multi-dimensional integrated friction damping tuned mass shock mount Download PDFInfo
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- 238000013016 damping Methods 0.000 title abstract description 88
- 230000035939 shock Effects 0.000 title abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000010521 absorption reaction Methods 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 23
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- 238000004870 electrical engineering Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 239000002783 friction material Substances 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 238000011089 mechanical engineering Methods 0.000 description 5
- 230000002265 prevention Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 230000000452 restraining effect Effects 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 3
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/033—Noise absorbers
- F16L55/035—Noise absorbers in the form of specially adapted hangers or supports
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
- H02G3/0456—Ladders or other supports
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Abstract
本发明是一种多维集成摩擦阻尼调谐质量减震支架,包括容纳管线的线槽,沿线槽长度方向每隔一定距离在其下部设置水平承载横杆,并将线槽通过线槽固定角钢与水平承载横杆固接,水平承载横杆通过承重吊杆、横向斜撑和纵向斜撑与主体结构相连接形成稳定结构,沿线槽长度方向每隔一定距离在其内部设置二维调谐减振盒,并且在水平承载横杆内部设置横向水平调谐减振盒,共同形成多维调谐减振体系,二维调谐减振盒用于吸收并摩擦耗散竖向和纵向振动能量、横向水平调谐减振盒吸收并摩擦耗散横向振动能量。本发明具有装配方便、高效耗能、便于规格化的优点,既可用于新建抗震支架,又可用于既有抗震支架改造,提高机电工程管线的抗震安全性。
The invention is a multi-dimensional integrated friction damping tuning mass shock absorption bracket, which includes a wire groove for accommodating pipelines, a horizontal bearing crossbar is arranged at the lower part of the wire groove at a certain distance along the length direction of the wire groove, and the wire groove is fixed through the wire groove. The load-bearing crossbar is fixedly connected, and the horizontal load-bearing crossbar is connected with the main structure through the load-bearing boom, the transverse diagonal brace and the longitudinal diagonal bracing to form a stable structure. In addition, a horizontally tuned vibration-damping box is set inside the horizontal bearing bar to form a multi-dimensional tuning vibration-damping system. The two-dimensional tuning vibration-damping box is used to absorb and frictionally dissipate the vertical and longitudinal vibration energy, and the horizontal horizontally-tuning vibration-damping box absorbs And friction dissipates the lateral vibration energy. The invention has the advantages of convenient assembly, high efficiency and energy consumption, and convenient standardization, and can be used for both newly-built anti-seismic supports and retrofit of existing anti-seismic supports to improve the anti-seismic safety of electromechanical engineering pipelines.
Description
技术领域technical field
本发明属于生命线工程管道设施防灾保护的技术领域,具体涉及一种多维集成摩擦阻尼调谐质量减震支架。The invention belongs to the technical field of disaster prevention and protection of lifeline engineering pipeline facilities, and particularly relates to a multi-dimensional integrated friction damping tuning mass shock-absorbing support.
背景技术Background technique
作为城市生命线工程的重要载体,机电工程管线的防灾安全性一直是社会关注的重点,如何保障这些重要管线的正常使用、发挥其灾后辅助救灾的关键功能,是目前城市防灾的热点之一。抗震支吊架,是这些管线的重要承载物,对于机电工程管线的安全性至关重要,在《建筑机电工程抗震设计规范》GB50981-2014中专门对抗震支吊架的设计进行了规定,以确保其安全性。《建筑抗震设计规范》G50011-2010中也规定“非结构构件,包括建筑非结构构件和建筑附属机电设备,自身及其与结构主体的连接,应进行抗震设计。”因此,利用新技术开发更加安全、更加可靠的管线支吊架成为近年来行业发展的方向之一。As an important carrier of urban lifeline engineering, the disaster prevention and safety of mechanical and electrical engineering pipelines has always been the focus of social attention. How to ensure the normal use of these important pipelines and play their key functions of post-disaster auxiliary disaster relief is one of the hot spots in urban disaster prevention. . Anti-seismic supports and hangers are important bearing objects of these pipelines, and are crucial to the safety of mechanical and electrical engineering pipelines. ensure its safety. "Code for Seismic Design of Buildings" G50011-2010 also stipulates that "non-structural components, including non-structural components of buildings and auxiliary mechanical and electrical equipment of buildings, themselves and their connection with the main body of the structure should be designed for earthquake resistance." Therefore, the use of new technologies to develop more Safe and more reliable pipeline supports and hangers have become one of the development directions of the industry in recent years.
经过几十年的发展,振动控制技术从理论到应用已日渐成熟,由于极好的对结构主体保护效果,该项目已在航空航天、机械、土木建筑等多个领域广泛应用。在抗震支吊架的研制中,也逐渐被引入,如已公开的一种电力设备抗震支架用高效减震阻尼器(ZL201820291917.5)、一种管道固定位置可调节的抗震支吊架(ZL201810941205.8)、一种具有隔震功能的抗震支吊架(ZL201721277708.7)、一种加强型减震抗震支架(ZL201721571457.3)等均或多或少引入了振动控制理念。然而,这些装置多是基于消能减振的思想,而调谐减振的振动控制技术在抗震支吊架中尚少见利用。调谐减振系统主要由主结构和附加在主结构上的子结构组成。其中,子结构包括质量、刚度和阻尼三个单元,通过调整子结构的自振频域与主结构控制频率接近,即可在主结构振动时,传递部分振动能量给子结构,从而抑制主结构的振动响应。在目前的调谐减振装置中,由于较好的耗能效率,较多的应用了线性黏滞阻尼作为耗能方式,另外一类同样较高效率的非线性摩擦阻尼耗能方式在调谐减振装置中的应用相对较少。After decades of development, vibration control technology has gradually matured from theory to application. Due to the excellent protection effect on the main body of the structure, the project has been widely used in aerospace, machinery, civil construction and other fields. In the development of anti-seismic supports and hangers, they have also been gradually introduced, such as a high-efficiency shock-absorbing damper for anti-seismic supports of power equipment (ZL201820291917.5), a kind of anti-seismic supports and hangers with adjustable pipe fixing positions (ZL201810941205 .8), a seismic support and hanger with seismic isolation function (ZL201721277708.7), a reinforced shock-absorbing and seismic support (ZL201721571457.3), etc., have more or less introduced the concept of vibration control. However, most of these devices are based on the idea of energy dissipation and vibration reduction, and the vibration control technology of tuned vibration reduction is rarely used in anti-seismic supports and hangers. The tuning damping system is mainly composed of the main structure and the sub-structures attached to the main structure. Among them, the substructure includes three units of mass, stiffness and damping. By adjusting the natural vibration frequency domain of the substructure to be close to the control frequency of the main structure, when the main structure vibrates, part of the vibration energy can be transferred to the substructure, thereby suppressing the main structure. vibration response. In the current tuning vibration damping devices, due to the better energy dissipation efficiency, linear viscous damping is mostly used as the energy dissipation method. There are relatively few applications in the device.
本发明基于调谐减振和摩擦耗能的技术理念,关注支吊架空间的集成利用和装置参数的可调节性,开发一种多维集成摩擦阻尼调谐质量减震支架,实现机电工程抗震支吊架的承载和非线性调谐耗能减振功能,为抗震支吊架的防灾保护提供一种新的减振技术理念。Based on the technical concepts of tuning vibration reduction and frictional energy consumption, the invention focuses on the integrated utilization of the support and hanger space and the adjustability of device parameters, and develops a multi-dimensional integrated friction damping tuned mass shock-absorbing support to realize the mechanical and electrical engineering anti-seismic support and hanger. It provides a new vibration reduction technology concept for the disaster prevention protection of the seismic support and hanger.
发明内容SUMMARY OF THE INVENTION
本发明的目的在于克服现有技术存在的问题,提供一种多维集成摩擦阻尼调谐质量减震支架,利用附加的分布质量结合摩擦耗能技术耗散动力外荷载输入的能量,同时保持空间利用效率,用于机电系统工程管线的安装和抗震防灾保护。The purpose of the present invention is to overcome the problems existing in the prior art and provide a multi-dimensional integrated friction damping tuned mass shock absorber bracket, which utilizes additional distributed mass combined with friction energy dissipation technology to dissipate the energy input by dynamic external loads while maintaining space utilization efficiency , for the installation of mechanical and electrical system engineering pipelines and earthquake and disaster prevention protection.
为实现上述技术目的,达到上述技术效果,本发明通过以下技术方案实现:In order to realize the above-mentioned technical purpose and achieve the above-mentioned technical effect, the present invention is realized through the following technical solutions:
一种多维集成摩擦阻尼调谐质量减震支架,包括承重吊杆、横向斜撑、纵向斜撑、水平承载横杆、线槽、线槽固定角钢、二维调谐减振盒和横向水平调谐减振盒,所述线槽用于容纳管线,沿所述线槽长度方向每隔一定距离在其下部设置水平承载横杆,并将线槽通过线槽固定角钢与水平承载横杆固接,所述水平承载横杆通过承重吊杆、横向斜撑和纵向斜撑与主体结构相连接形成稳定结构,沿所述线槽长度方向每隔一定距离在其内部设置二维调谐减振盒,并且在所述水平承载横杆内部设置横向水平调谐减振盒,共同形成多维调谐减振体系,线槽振动时,通过二维调谐减振盒吸收并摩擦耗散竖向和纵向振动能量、通过横向水平调谐减振盒吸收并摩擦耗散横向振动能量。A multi-dimensional integrated friction damping tuned mass damping bracket, comprising a load-bearing boom, a lateral diagonal brace, a longitudinal diagonal brace, a horizontal load-carrying crossbar, a wire groove, a wire groove fixing angle, a two-dimensional tuned vibration reduction box and a lateral horizontal tuned vibration reduction The wire groove is used for accommodating pipelines, and horizontal bearing bars are arranged at the lower part of the wire groove at regular intervals along the length direction of the wire groove, and the wire groove is fixed to the horizontal bearing bar through the wire groove fixing angle steel. The horizontal load-bearing crossbar is connected with the main structure through the load-bearing boom, the transverse diagonal brace and the longitudinal diagonal brace to form a stable structure. The transverse horizontal tuning vibration reduction box is set inside the horizontal bearing beam to form a multi-dimensional tuning vibration reduction system together. The vibration damping box absorbs and frictionally dissipates lateral vibration energy.
进一步的,所述二维调谐减振盒由二维调谐质量、套筒弹簧、二维减振盒外壳和减振盒固定角钢组成,所述二维减振盒外壳通过减振盒固定角钢与线槽内部底面固接在一起,所述套筒弹簧两端分别与二维调谐质量和二维减振盒外壳铰接在一起,用以提供弹性刚度,所述二维调谐质量侧壁表面与二维减振盒外壳侧壁内表面之间接触形成摩擦滑动面,通过动摩擦滞回耗散振动能量。Further, the two-dimensional tuning vibration reduction box is composed of a two-dimensional tuning mass, a sleeve spring, a two-dimensional vibration reduction box shell and a vibration reduction box fixed angle steel, and the two-dimensional vibration reduction box shell is connected to the vibration reduction box fixed angle steel through the vibration reduction box fixed angle steel. The inner bottom surfaces of the wire grooves are fixed together, the two ends of the sleeve spring are respectively hinged with the two-dimensional tuning mass and the two-dimensional vibration damping box shell to provide elastic stiffness, and the sidewall surface of the two-dimensional tuning mass is connected with the two-dimensional tuning mass. The contact between the inner surfaces of the side walls of the vibration damping box shell forms a friction sliding surface, and the vibration energy is dissipated through the dynamic friction hysteresis.
进一步的,所述二维调谐减振盒还包括滑动垫片、调节螺杆和调节螺母,所述调节螺杆穿过二维减振盒外壳的两侧壁,并且穿出二维减振盒外壳的两侧壁外表面的部分与调节螺母配合旋紧,所述调节螺杆在二维减振盒外壳中的与二维调谐质量紧密连接且共同滑动,在摩擦滑动行程中与二维减振盒外壳不发生碰撞,所述调节螺杆和/或调节螺母与二维减振盒外壳侧壁外表面之间设置滑动垫片,通过拧紧和放松调节螺母改变二维减振盒外壳对二维调谐质量的预压力,从而调节摩擦耗能特性。Further, the two-dimensional tuning damping box further includes a sliding washer, an adjusting screw and an adjusting nut, and the adjusting screw passes through the two side walls of the two-dimensional vibration damping box shell and passes through the two-dimensional vibration damping box shell. Parts of the outer surfaces of the two side walls are screwed together with the adjusting nut. The adjusting screw is tightly connected with the two-dimensional tuning mass in the two-dimensional vibration damping box shell and slides together, and in the friction sliding stroke, it is connected with the two-dimensional vibration damping box shell. No collision occurs, a sliding washer is arranged between the adjusting screw and/or the adjusting nut and the outer surface of the side wall of the two-dimensional vibration damping box shell, and the effect of the two-dimensional vibration damping box shell on the two-dimensional tuning quality is changed by tightening and loosening the adjusting nut. pre-pressure, thereby adjusting the frictional energy dissipation characteristics.
进一步的,所述摩擦滑动面处设有摩擦材料,摩擦材料采用聚四氟乙烯或改性聚乙烯。Further, a friction material is provided at the friction sliding surface, and the friction material adopts polytetrafluoroethylene or modified polyethylene.
进一步的,所述二维调谐质量为钢质质量块,钢质质量块内部为实心或空心,空心时便于填充不同质量材料,以调整自振频率。Further, the two-dimensional tuning mass is a steel mass block, and the interior of the steel mass block is solid or hollow, and it is convenient to fill materials of different masses when the hollow is hollow, so as to adjust the natural vibration frequency.
进一步的,所述套筒弹簧由套筒和弹簧组成,所述套筒随弹簧变形自由伸缩并对弹簧变形方向作限位,所述弹簧通过抑制其两端弹簧圈的变形改变刚度。Further, the sleeve spring is composed of a sleeve and a spring, the sleeve can expand and contract freely with the deformation of the spring and limit the deformation direction of the spring, and the spring can change the stiffness by restraining the deformation of the coils at both ends thereof.
进一步的,所述横向水平调谐减振盒由横向调谐质量、横向套筒弹簧和横向减振盒外壳组成,所述横向套筒弹簧两端分别与横向调谐质量和横向减振盒外壳铰接在一起,所述横向调谐质量侧壁表面与横向减振盒外壳侧壁内表面之间接触形成摩擦滑动面,通过动摩擦滞回耗散振动能量。Further, the lateral horizontal tuning vibration damping box is composed of a lateral tuning mass, a lateral sleeve spring and a lateral vibration damping box shell, and both ends of the lateral sleeve spring are hinged together with the lateral tuning mass and the lateral vibration damping box shell, respectively. The contact between the lateral surface of the lateral tuning mass side wall and the inner surface of the lateral vibration damping box shell side wall forms a frictional sliding surface, and the vibration energy is dissipated through dynamic friction hysteresis.
进一步的,所述横向调谐质量为钢质质量块,钢质质量块内部为实心或空心,空心时便于填充不同质量材料,以调整自振频率。Further, the transverse tuning mass is a steel mass block, and the inside of the steel mass block is solid or hollow, and it is convenient to fill materials of different masses when the hollow is hollow, so as to adjust the natural vibration frequency.
进一步的,所述横向套筒弹簧由套筒和弹簧组成,所述套筒随弹簧变形自由伸缩并对弹簧变形方向作限位,所述弹簧通过抑制其两端弹簧圈的变形改变刚度。Further, the transverse sleeve spring is composed of a sleeve and a spring, the sleeve can expand and contract freely with the deformation of the spring and limit the deformation direction of the spring, and the spring changes the stiffness by restraining the deformation of the coils at both ends thereof.
进一步的,所述承重吊杆、横向斜撑、纵向斜撑和水平承载横杆采用C型槽钢或轻型钢管结构,所述横向斜撑和纵向斜撑分别沿线槽横向和纵向布置,所述承重吊杆、横向斜撑、纵向斜撑的一端与水平承载横杆铰接在一起,另一端与主体结构铰接在一起,形成稳定的空间结构,提供承载线槽、二维调谐减振盒和横向水平调谐减振盒安装空间。Further, the load-bearing suspenders, transverse diagonal braces, longitudinal diagonal braces and horizontal load-bearing cross bars adopt C-shaped channel steel or light steel tube structures, and the transverse diagonal bracing and longitudinal diagonal bracing are respectively arranged laterally and longitudinally along the wire groove, and the One end of the load-bearing boom, horizontal diagonal brace and longitudinal diagonal brace is hinged with the horizontal load-bearing cross-bar, and the other end is hinged with the main structure to form a stable spatial structure, providing load-bearing wire grooves, two-dimensional tuned vibration damping boxes and lateral Installation space for the horizontally tuned vibration damping box.
本发明的有益效果是:减震支架具有装配方便、高效耗能、便于规格化等优点The beneficial effects of the present invention are: the shock-absorbing bracket has the advantages of convenient assembly, high energy consumption, and easy standardization.
本发明的二维调谐减振盒和横向水平调谐减振盒分别集成于线槽和水平承载横杆内部,空间占用少,既可用于新建抗震支架,又可用于既有抗震支架改造。利用调谐减振原理,使得即使在较小的结构变形下,亦能有较好的耗能能力。多个分布式的调谐减振盒布置,可合理设计各调谐减振盒的频率扩展调谐减振频带。在动力灾害下,减震支架不但通过调谐减振原理消耗了管道部分振动能量,且减少了传递给主体结构的力。该装置可广泛应用于机电工程管线的抗震防灾保护。综合具有装配方便、高效耗能、便于规格化等优点。The two-dimensional tuning vibration-damping box and the transverse horizontal tuning vibration-damping box of the present invention are respectively integrated in the wire trough and the horizontal bearing bar, occupying less space, and can be used for both new seismic support and reconstruction of existing seismic support. Using the principle of tuning vibration damping, it can have better energy dissipation capacity even under small structural deformation. The arrangement of multiple distributed tuning damping boxes can reasonably design the frequency expansion tuning damping frequency band of each tuning damping box. Under the dynamic disaster, the shock-absorbing bracket not only consumes the vibration energy of the pipeline part through the principle of tuning and vibration reduction, but also reduces the force transmitted to the main structure. The device can be widely used in the anti-seismic and disaster-proof protection of mechanical and electrical engineering pipelines. It has the advantages of convenient assembly, efficient energy consumption, and easy standardization.
附图说明Description of drawings
图1是本发明的减震支架横向剖面构造示意图;Fig. 1 is the cross-sectional structural schematic diagram of the shock-absorbing support of the present invention;
图2是本发明的减震支架纵向剖面构造示意图;2 is a schematic diagram of the longitudinal cross-sectional structure of the shock-absorbing bracket of the present invention;
图3是本发明的减震支架水平剖面构造示意图;3 is a schematic diagram of the horizontal cross-sectional structure of the shock-absorbing support of the present invention;
图4是本发明的二维调谐减振盒剖面构造示意图;Fig. 4 is the sectional structure schematic diagram of the two-dimensional tuning vibration damping box of the present invention;
图5是本发明的横向水平调谐减振盒剖面构造示意图。FIG. 5 is a schematic cross-sectional structural diagram of the transverse horizontal tuning vibration damping box of the present invention.
图中标号说明:承重吊杆1;横向斜撑2;纵向斜撑3;水平承载横杆4;线槽5;线槽固定角钢6;二维调谐减振盒7;横向水平调谐减振盒8;二维调谐质量71;套筒弹簧72;二维减振盒外壳73;减振盒固定角钢74;滑动垫片75;调节螺杆76;调节螺母77;横向调谐质量81;横向套筒弹簧82;横向减振盒外壳83。Description of symbols in the figure: load-bearing boom 1; transverse diagonal brace 2; longitudinal diagonal brace 3; horizontal load-bearing crossbar 4; wire groove 5; wire groove fixed angle steel 6; two-dimensional tuning vibration reduction box 7; horizontal horizontal tuning vibration reduction box 8; Two-dimensional tuning mass 71; Sleeve spring 72; Two-dimensional damping box shell 73; Damping box fixing angle 74; Sliding washer 75; Adjusting screw 76; Adjusting nut 77; Transverse tuning mass 81; Transverse sleeve spring 82; Transverse vibration damping box housing 83.
具体实施方式Detailed ways
下面将参考附图并结合实施例,来详细说明本发明。The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
如图1至图3所示,一种多维集成摩擦阻尼调谐质量减震支架,包括承重吊杆1、横向斜撑2、纵向斜撑3、水平承载横杆4、线槽5、线槽固定角钢6、二维调谐减振盒7和横向水平调谐减振盒8,所述线槽5用于容纳管线,本实施例中,可用来容纳机电工程管线,沿所述线槽5长度方向每隔一定距离在其下部设置水平承载横杆4,并将线槽5通过线槽固定角钢6与水平承载横杆4固接,所述水平承载横杆4通过承重吊杆1、横向斜撑2和纵向斜撑3与主体结构相连接形成稳定结构,在本实施例中,主体结构为本领域常规的框架结构或其他常规形式的结构,沿所述线槽5长度方向每隔一定距离在其内部设置二维调谐减振盒7,并且在所述水平承载横杆4内部设置横向水平调谐减振盒8,共同形成多维调谐减振体系,线槽5振动时,通过二维调谐减振盒7吸收并摩擦耗散竖向和纵向振动能量、通过横向水平调谐减振盒8吸收并摩擦耗散横向振动能量。As shown in Figures 1 to 3, a multi-dimensional integrated friction damping tuned mass shock absorption bracket includes a load-bearing boom 1, a transverse diagonal brace 2, a longitudinal diagonal brace 3, a horizontal load-bearing crossbar 4, a wire groove 5, and a wire groove fixed Angle steel 6, two-dimensional tuning vibration damping box 7 and transverse horizontal tuning vibration damping box 8, the wire groove 5 is used to accommodate pipelines, in this embodiment, can be used to accommodate mechanical and electrical engineering pipelines. A horizontal load-carrying crossbar 4 is arranged at its lower part at a certain distance, and the wire groove 5 is fixed to the horizontal load-bearing crossbar 4 through the wire groove fixing angle steel 6. And the longitudinal diagonal brace 3 is connected with the main structure to form a stable structure, in this embodiment, the main structure is a conventional frame structure in the field or other conventional structures, and the length direction of the wire slot 5 is at intervals of a certain distance. A two-dimensional tuning vibration damping box 7 is arranged inside, and a horizontal horizontal tuning vibration damping box 8 is set inside the horizontal bearing bar 4 to form a multi-dimensional tuning vibration damping system. When the wire slot 5 vibrates, the two-dimensional tuning vibration damping box is passed 7 absorbs and frictionally dissipates the vertical and longitudinal vibration energy, and absorbs and frictionally dissipates the lateral vibration energy through the transverse horizontally tuned vibration damping box 8 .
如图4所示,所述二维调谐减振盒7由二维调谐质量71、套筒弹簧72、二维减振盒外壳73和减振盒固定角钢74组成,所述二维减振盒外壳73通过减振盒固定角钢74与线槽5内部底面固接在一起,所述套筒弹簧72两端分别与二维调谐质量71和二维减振盒外壳73铰接在一起,用以提供弹性刚度,所述二维调谐质量71侧壁表面与二维减振盒外壳73侧壁内表面之间接触形成摩擦滑动面,通过动摩擦滞回耗散振动能量。As shown in FIG. 4 , the two-dimensional tuning damping box 7 is composed of a two-dimensional tuning mass 71 , a sleeve spring 72 , a two-dimensional damping box shell 73 and a damping box fixing angle steel 74 . The shell 73 is fixedly connected to the inner bottom surface of the wire groove 5 through the vibration-damping box fixing angle steel 74, and the two ends of the sleeve spring 72 are hinged with the two-dimensional tuning mass 71 and the two-dimensional vibration-damping box shell 73 respectively to provide Elastic stiffness, the contact between the side wall surface of the two-dimensional tuning mass 71 and the inner surface of the side wall of the two-dimensional vibration damping box shell 73 forms a frictional sliding surface, and the vibration energy is dissipated through dynamic friction hysteresis.
所述二维调谐减振盒7还包括滑动垫片75、调节螺杆76和调节螺母77,所述调节螺杆76穿过二维减振盒外壳73的两侧壁,并且穿出二维减振盒外壳73的两侧壁外表面的部分与调节螺母77配合旋紧,所述调节螺杆76在二维减振盒外壳73中的与二维调谐质量71紧密连接且共同滑动,在摩擦滑动行程中与二维减振盒外壳73不发生碰撞,所述调节螺杆76和/或调节螺母77与二维减振盒外壳73侧壁外表面之间设置滑动垫片75,通过拧紧和放松调节螺母77改变二维减振盒外壳73对二维调谐质量71的预压力,从而调节摩擦耗能特性。The two-dimensional tuning vibration damping box 7 further includes a sliding washer 75, an adjusting screw 76 and an adjusting nut 77, and the adjusting screw 76 passes through the two side walls of the two-dimensional vibration damping box shell 73 and penetrates the two-dimensional vibration damping. Parts of the outer surfaces of the two side walls of the box shell 73 are screwed together with the adjustment nut 77, and the adjustment screw 76 in the two-dimensional vibration damping box shell 73 is closely connected with the two-dimensional tuning mass 71 and slides together. There is no collision with the two-dimensional vibration damping box housing 73, and a sliding washer 75 is provided between the adjusting screw 76 and/or the adjusting nut 77 and the outer surface of the side wall of the two-dimensional vibration damping box housing 73. By tightening and loosening the adjusting nut 77 Change the pre-pressure of the two-dimensional vibration damping box shell 73 on the two-dimensional tuning mass 71, so as to adjust the friction and energy dissipation characteristics.
所述摩擦滑动面处设有摩擦材料,摩擦材料采用聚四氟乙烯或改性聚乙烯。The friction sliding surface is provided with a friction material, and the friction material adopts polytetrafluoroethylene or modified polyethylene.
所述二维调谐质量71为钢质质量块,钢质质量块内部为实心或空心,空心时便于填充不同质量材料,以调整自振频率。The two-dimensional tuning mass 71 is a steel mass block, and the inside of the steel mass block is solid or hollow, and it is convenient to fill with different quality materials to adjust the natural vibration frequency when it is hollow.
所述套筒弹簧72由套筒和弹簧组成,所述套筒随弹簧变形自由伸缩并对弹簧变形方向作限位,所述弹簧通过抑制其两端弹簧圈的变形改变刚度。The sleeve spring 72 is composed of a sleeve and a spring. The sleeve can expand and contract freely with the deformation of the spring and limit the deformation direction of the spring. The spring changes stiffness by restraining the deformation of the coils at both ends thereof.
如图5所示,所述横向水平调谐减振盒8由横向调谐质量81、横向套筒弹簧82和横向减振盒外壳83组成,所述横向套筒弹簧82两端分别与横向调谐质量81和横向减振盒外壳83铰接在一起,所述横向调谐质量81侧壁表面与横向减振盒外壳83侧壁内表面之间接触形成摩擦滑动面,通过动摩擦滞回耗散振动能量,在本实施例中,该摩擦滑动面处的摩擦材料也采用聚四氟乙烯或改性聚乙烯。As shown in FIG. 5 , the lateral horizontal tuning vibration damping box 8 is composed of a lateral tuning mass 81 , a lateral sleeve spring 82 and a lateral vibration damping box shell 83 . The two ends of the lateral sleeve spring 82 are respectively connected to the lateral tuning mass 81 Hinged together with the lateral vibration damping box shell 83, the lateral surface of the lateral tuning mass 81 contacts with the inner surface of the lateral wall of the lateral vibration damping box shell 83 to form a frictional sliding surface, and the vibration energy is dissipated through dynamic friction hysteresis. In the embodiment, the friction material at the friction sliding surface also adopts polytetrafluoroethylene or modified polyethylene.
所述横向调谐质量81为钢质质量块,钢质质量块内部为实心或空心,空心时便于填充不同质量材料,以调整自振频率。The transverse tuning mass 81 is a steel mass block, and the interior of the steel mass block is solid or hollow, and it is convenient to fill with different quality materials to adjust the natural vibration frequency when it is hollow.
所述横向套筒弹簧82由套筒和弹簧组成,所述套筒随弹簧变形自由伸缩并对弹簧变形方向作限位,所述弹簧通过抑制其两端弹簧圈的变形改变刚度。The transverse sleeve spring 82 is composed of a sleeve and a spring. The sleeve can expand and contract freely with the deformation of the spring and limit the deformation direction of the spring. The spring changes its stiffness by restraining the deformation of the coils at both ends.
所述承重吊杆1、横向斜撑2、纵向斜撑3和水平承载横杆4采用C型槽钢或轻型钢管结构,所述横向斜撑2和纵向斜撑3分别沿线槽5横向和纵向布置,所述承重吊杆1、横向斜撑2、纵向斜撑3的一端与水平承载横杆4铰接在一起,另一端与主体结构铰接在一起,形成稳定的空间结构,提供承载线槽5、二维调谐减振盒7和横向水平调谐减振盒8安装空间。The load-bearing boom 1, the transverse diagonal brace 2, the longitudinal diagonal brace 3 and the horizontal load-bearing cross bar 4 adopt the structure of C-shaped channel steel or light steel pipe, and the transverse diagonal brace 2 and the longitudinal diagonal brace 3 are respectively along the horizontal and vertical direction of the wire groove 5. Arrangement, one end of the load-bearing boom 1, the horizontal diagonal brace 2, and the longitudinal diagonal brace 3 are hinged with the horizontal load-bearing cross-bar 4, and the other end is hinged with the main structure to form a stable space structure and provide a load-bearing wire slot 5 , two-dimensional tuning vibration damping box 7 and lateral horizontal tuning vibration damping box 8 installation space.
以下结合上述技术方案和附图详述本发明在具体安装使用时的实施步骤:The implementation steps of the present invention during specific installation and use are described in detail below in conjunction with the above-mentioned technical solutions and accompanying drawings:
1)根据主体结构和机电设备的相关特性,确定减震支架的相关参数,包括是二维调谐减振盒7和横向水平调谐减振盒8的具体参数和尺寸。1) According to the relevant characteristics of the main structure and the electromechanical equipment, determine the relevant parameters of the shock-absorbing bracket, including the specific parameters and dimensions of the two-dimensional tuned shock-absorbing box 7 and the transverse horizontally tuned shock-absorbing box 8.
2)根据设计规格,在工厂加工二维调谐质量71、套筒弹簧72和二维减振盒外壳73,对二维调谐质量71两个侧面和二维减振盒外壳73侧壁内表面进行摩擦处理,拼装二维减振盒外壳73的侧壁和底板,安装二维调谐质量71底部的套筒弹簧72;对准预留滑动孔洞,将滑动垫片75置于二维减振盒外壳73侧面外侧,插入调节螺杆76,拧上调谐螺母77;将上部套筒弹簧72的底端连接到二维调谐质量71顶面,盖上二维减振盒外壳73的顶板,并将套筒弹簧72与二维减振盒外壳73顶板固定,完成二维调谐减振盒7的制作。2) According to the design specifications, the two-dimensional tuning mass 71, the sleeve spring 72 and the two-dimensional vibration damping box shell 73 are processed in the factory, and the two sides of the two-dimensional tuning mass 71 and the inner surface of the side wall of the two-dimensional vibration damping box shell 73 are processed. Friction treatment, assemble the side wall and bottom plate of the two-dimensional vibration damping box shell 73, install the sleeve spring 72 at the bottom of the two-dimensional tuning mass 71; align the reserved sliding holes, and place the sliding gasket 75 on the two-dimensional vibration damping box shell On the outside of the side of 73, insert the adjusting screw 76, and screw on the tuning nut 77; The spring 72 is fixed to the top plate of the two-dimensional vibration damping box shell 73 , and the manufacture of the two-dimensional tuning vibration damping box 7 is completed.
3)在工厂加工横向调谐质量81、横向套筒弹簧82和横向减振盒外壳83,对横向调谐质量81四个侧面和横向减振盒外壳83筒身内表面进行摩擦处理,在横向调谐质量81两端连接横向套筒弹簧82,并将其插入横向减振盒外壳83筒身,盖上横向减振盒外壳83两端板,并将横向套筒弹簧82与两端板固定。3) Process the transverse tuning mass 81, the transverse sleeve spring 82 and the transverse damping box shell 83 in the factory, perform friction treatment on the four sides of the transverse tuning mass 81 and the inner surface of the cylinder of the transverse damping box shell 83, and perform friction treatment on the transverse tuning mass 81 The two ends are connected to the transverse sleeve spring 82, and inserted into the cylindrical body of the transverse vibration damping box shell 83, the two end plates of the transverse vibration damping box shell 83 are covered, and the transverse sleeve spring 82 is fixed to the two end plates.
4)根据设计定位,将承重吊杆1、横向斜撑2和纵向斜撑3连接到主体结构,再用可调式铰链将承重吊杆1、横向斜撑2和纵向斜撑3与水平承载横杆4连接,形成稳定的空间架构。4) According to the design and positioning, connect the load-bearing boom 1, transverse diagonal brace 2 and longitudinal diagonal brace 3 to the main structure, and then use adjustable hinges to connect the load-bearing boom 1, transverse diagonal brace 2 and longitudinal diagonal brace 3 to the horizontal load-bearing horizontal Rods 4 are connected to form a stable space structure.
5)利用减振盒固定角钢74根据设计位置将二维调谐减振盒7固定于线槽5内,再利用线槽固定角钢6将线槽5固定于水平承载横杆4上表面。5) Use the vibration-damping box fixing angle steel 74 to fix the two-dimensional tuning vibration-damping box 7 in the wire groove 5 according to the design position, and then use the wire groove fixing angle steel 6 to fix the wire groove 5 on the upper surface of the horizontal bearing cross bar 4 .
6)根据现场测试结果,调节二维调谐减振盒7中的二维调谐质量71和横向调谐质量81的质量、套筒弹簧72和横向套筒弹簧82的刚度大小,并通过调节螺母77调节阻尼特性6) According to the field test results, adjust the mass of the two-dimensional tuning mass 71 and the transverse tuning mass 81 in the two-dimensional tuning vibration damping box 7, and the stiffness of the sleeve spring 72 and the transverse sleeve spring 82, and adjust by adjusting the nut 77. Damping characteristics
本发明原理Principle of the Invention
本发明中,承重吊杆1、横向斜撑2、纵向斜撑3和水平承载横杆4共同形成稳定的结构,为线槽5提供承载体系和安装空间,线槽5内的二维调谐减振盒7在竖向和纵向提供相位相反的控制力,水平承载横杆4内的横向水平调谐减振盒8在横向提供相位相反的控制力;可以根据不同部位响应特点,对多个二维调谐减振盒7和横向水平调谐减振盒8设置不同的调谐频率,从而扩展调谐减振频带。当管线引发线槽5振动时,不论振动大小,承重吊杆1、横向斜撑1、纵向斜撑3和水平承载横杆4承担并传递管道振动荷载,与此同时,由于调谐共振原理,部分振动能量被传递到二维调谐质量71和横向调谐质量81,引起它们在相应盒中滑动,并通过与相应减振盒外壳的动摩擦滞回耗散振动能量。In the present invention, the load-bearing boom 1, the horizontal diagonal brace 2, the longitudinal diagonal brace 3 and the horizontal load-bearing crossbar 4 together form a stable structure, which provides a bearing system and installation space for the wire slot 5, and the two-dimensional tuning in the wire slot 5 reduces the The vibration box 7 provides control forces with opposite phases in the vertical and longitudinal directions, and the horizontally tuned vibration-damping box 8 in the horizontal bearing bar 4 provides control forces with opposite phases in the horizontal direction; according to the response characteristics of different parts, multiple two-dimensional control forces can be applied. The tuning vibration damping box 7 and the transverse horizontal tuning vibration damping box 8 are set with different tuning frequencies, thereby expanding the tuning vibration damping frequency band. When the pipeline causes the vibration of the trunking 5, regardless of the magnitude of the vibration, the load-bearing boom 1, the horizontal diagonal brace 1, the longitudinal diagonal brace 3 and the horizontal load-bearing crossbar 4 bear and transmit the vibration load of the pipeline. At the same time, due to the principle of tuning resonance, some parts The vibrational energy is transferred to the two-dimensional tuning mass 71 and the transverse tuning mass 81, causing them to slide in the respective boxes and dissipate the vibrational energy through hysteretic kinetic friction with the respective damping box housings.
以上所述仅为本发明的优选实施例而已,并不用于限制本发明,对于本领域的技术人员来说,本发明可以有各种更改和变化。凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.
Claims (10)
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110410611A (en) * | 2019-07-26 | 2019-11-05 | 武汉地震工程研究院有限公司 | A kind of building pipe structural friction tuned mass damping device |
CN111457187A (en) * | 2020-05-09 | 2020-07-28 | 江苏方天电力技术有限公司 | Pipeline vibration damper and configuration method thereof |
CN113090707A (en) * | 2021-03-26 | 2021-07-09 | 山东英信计算机技术有限公司 | Universal shake suppression device for server cabinet |
CN116658697A (en) * | 2023-07-24 | 2023-08-29 | 山东筑峰建筑工程有限公司 | Pipeline anti-seismic bracket for constructional engineering and application method thereof |
-
2019
- 2019-03-19 CN CN201910206587.4A patent/CN110005901A/en not_active Withdrawn
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110410611A (en) * | 2019-07-26 | 2019-11-05 | 武汉地震工程研究院有限公司 | A kind of building pipe structural friction tuned mass damping device |
CN111457187A (en) * | 2020-05-09 | 2020-07-28 | 江苏方天电力技术有限公司 | Pipeline vibration damper and configuration method thereof |
CN111457187B (en) * | 2020-05-09 | 2021-04-27 | 江苏方天电力技术有限公司 | Pipeline vibration damper and configuration method thereof |
CN113090707A (en) * | 2021-03-26 | 2021-07-09 | 山东英信计算机技术有限公司 | Universal shake suppression device for server cabinet |
CN116658697A (en) * | 2023-07-24 | 2023-08-29 | 山东筑峰建筑工程有限公司 | Pipeline anti-seismic bracket for constructional engineering and application method thereof |
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