CN113295362A - Vertical vibration test system for solid support boundary of large-scale structure and use method - Google Patents
Vertical vibration test system for solid support boundary of large-scale structure and use method Download PDFInfo
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- CN113295362A CN113295362A CN202110569006.0A CN202110569006A CN113295362A CN 113295362 A CN113295362 A CN 113295362A CN 202110569006 A CN202110569006 A CN 202110569006A CN 113295362 A CN113295362 A CN 113295362A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/04—Monodirectional test stands
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/022—Vibration control arrangements, e.g. for generating random vibrations
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Abstract
The invention provides a vertical vibration test system for a large-scale structure clamped boundary and a use method, belonging to the technical field of vibration environment tests, wherein the vibration test system comprises a vibration loading table board, a guide device, a vibration loading device and a gravity balance system; the whole vibration loading table top is of a plane-symmetrical structure, adopts a structural form that a double-layer aluminum plate clamps an aluminum pipe, and comprises an upper plate, a lower plate, a central pipe and a steel groove; the two sets of guide devices are respectively fixed at two opposite ends of the diagonal of the vibration loading table-board, and each guide device comprises a guide column, a guide rail and a bracket; the vibration loading device comprises an expansion tool, hydraulic bulbs and a vibration table, wherein each set of vibration loading device comprises two hydraulic bulbs which are arranged along the width direction of the vibration loading table surface; the gravity balance system comprises a bearing support, a hoist, a rubber rope group and a hanging strip. The invention also provides a using method of the vibration test system, and solves the problems that the transverse cross-linking vibration of the vibration loading table top cannot realize long-time stable loading in the prior art.
Description
Technical Field
The invention belongs to the technical field of vibration environment tests, and particularly relates to a vertical vibration test system for a large-scale structure clamped boundary and a use method.
Background
The adaptability and reliability of the structure and equipment of large equipment in a vibration environment in a use section are important problems of reducing the faults of the structure and equipment of the equipment, ensuring the use efficiency of the equipment, ensuring the safety of the equipment and the like. The vibration environment test technology is an important means for verifying and solving the adaptability and reliability of the test piece structure and the equipment vibration environment. The vibration loading of the solid support boundary of the large-scale structure generally adopts a multi-vibration-table single-axial test system configuration, a vibration loading table top is used for simulating the solid support boundary of a test piece, and the vibration load applied by the vibration table is transmitted to the vibration loading table top through a vibration tool. And the vibration load of the test piece under the solid support boundary is simulated by controlling the vibration input of the vibration loading table board.
The design of the vertical vibration test system of the clamped boundary of the large-scale structure faces a plurality of difficulties. On the premise of mass constraint, the rigidity of the large vibration loading table top is generally low, and the requirement of a clamped boundary is difficult to meet. The gravity center of the large-scale structure is high, and the vibration loading table board has large transverse cross-linking vibration during vertical vibration, so that vibration control is influenced. The transverse cross-linking vibration of a large structure can cause a larger overturning moment, and the safety of the test is influenced. A vibration decoupling device needs to be designed among a plurality of vibration tables in a multi-parallel excitation test system, so that the motion among the vibration tables is not influenced, necessary motion constraint can be provided, and the stability of vibration loading is guaranteed. The mass of a large-scale structure and a vibration loading table top is large, exceeds the static bearing capacity of a vibration table, a gravity balance system needs to be designed, the bearing safety is ensured, and the suspension frequency is fully considered to meet the requirement.
In conclusion, the existing vertical vibration test system for the fixed support boundary of the large-scale structure has the problem of transverse cross-linking vibration of a vibration loading table top, can cause larger overturning moment, influences test safety, cannot realize long-time stable loading, cannot effectively check the environmental adaptability of a test piece, and needs to be improved.
Disclosure of Invention
The invention provides a vertical vibration test system for a large-scale structure clamped boundary and a use method thereof, and aims to solve the problems that the transverse cross-linking vibration of a vibration loading table top in the prior art cannot realize long-time stable loading.
The purpose of the invention is realized by the following technical scheme:
a vertical vibration test system for a large-scale structure clamped boundary comprises a vibration loading table top, a guide device, a vibration loading device and a gravity balance system; the whole vibration loading table top is of a plane-symmetrical structure, adopts a structural form that a double-layer aluminum plate clamps an aluminum pipe, and comprises an upper plate, a lower plate, a central pipe and a steel groove; the two sets of guide devices are respectively fixed at two opposite ends of the diagonal of the vibration loading table-board, and each guide device comprises a guide column, a guide rail and a bracket; the vibration loading device comprises an expansion tool, hydraulic bulbs and a vibration table, wherein each set of vibration loading device comprises two hydraulic bulbs which are arranged along the width direction of the vibration loading table surface; the gravity balance system comprises a bearing support, a hoist, a rubber rope group and a hanging strip.
Preferably, the upper plate and the lower plate are rectangular plate-shaped, the material is duralumin, and the central tube is an aluminum square-section aluminum tube.
Preferably, the number of the central tubes is four, the central tubes are welded and fixed between the upper plate and the lower plate, and the central tubes are arranged at equal intervals along the length direction of the upper plate.
As the preferred scheme, the steel groove is the steel section bar of C type cross-section, totally two sets ofly, arranges the both sides at the upper plate along length direction, for dismantling the connection between steel groove and the upper plate, the steel groove lateral wall is provided with the screw hole along length direction, the vibration loading mesa passes through the steel groove and is connected with gravity balance system, the hypoplastron reserve with the connection screw of vibration loading device, the hypoplastron and the vibration loading device of vibration loading mesa pass through bolted connection fixedly.
As further optimization, bolt holes and hoisting holes are further formed in the periphery of the upper middle plate.
Preferably, the guide post and the guide rail are made of steel sections, the guide post and the guide rail form a sliding pair, the moving direction of the guide post in the guide rail is along the height direction of the upper plate, the lower end of the guide rail is connected with the support through a bolt, the lower end of the support is connected with the foundation, and the guide post is connected with the lower plate of the vibration loading table board through a bolt.
As an optimal scheme, the expansion tool is connected with the lower plate of the vibration loading table board through bolts, the upper end face of the hydraulic ball head is connected with the expansion tool through bolts, the lower end face of the hydraulic ball head is connected with the vibration table through bolts, and the lower end of the vibration table is fixed on the foundation.
As the preferred scheme, the vibration loading device has three sets, and each set of vibration loading device comprises two hydraulic bulbs, an expansion tool and a set of vibration table, and is arranged at the lower end of the vibration loading table board at equal intervals.
As the preferred scheme, the bearing support comprises six upright posts and three cross beams, and the lower part of the bearing support is fixedly connected with the foundation; the two sets of the hoist hoists in each group are suspended below the corresponding beam of the bearing bracket; the upper end of the rubber rope group is fixedly connected with the lower end of the hoist, and the lower end of the rubber rope group is fixedly connected with a steel groove on the side surface of the vibration loading table through a hanging strip.
The invention also provides a use method of the large-scale structure clamped boundary vertical vibration test system, and any one of the technical schemes is adopted, and the method comprises the following steps:
s1, firstly, connecting the test piece on a vibration loading table board;
s2, connecting the vibration loading table top with a gravity balance system;
s3, adjusting the height of the vibration loading table board by adjusting the length of the hoist, and connecting the lower plate of the vibration loading table board and the vibration loading device;
and S4, testing according to the test content and requirements.
The beneficial technical effects obtained by the invention are as follows:
the fixed support boundary of the vibration loading table-board simulation test piece with high rigidity and low density is designed, and a plurality of vibration tables are used for single-axial layout to apply vibration loads. The vibration guide device is designed to inhibit transverse cross-linking vibration of the vibration loading table board and provide an anti-overturning function. A vibration loading device is designed to realize motion decoupling and freedom degree constraint. A flexible gravity balance system is designed to bear the mass of the test piece and the loading platform.
The technical scheme provided by the invention can truly simulate the solid-supported boundary of a large-scale structure, uniformly apply the vibration environment and realize long-time stable loading, thereby effectively checking the environmental adaptability of the test piece, solving the problems in the prior art and having outstanding substantive characteristics and remarkable progress.
Drawings
FIG. 1 is a schematic structural diagram of one embodiment of the present invention;
FIG. 2 is a schematic structural view of the vibration loading table of FIG. 1;
FIG. 3 is a schematic view of the guide of FIG. 1;
FIG. 4 is a cross-sectional view taken at A-A of FIG. 3;
FIG. 5 is a schematic structural diagram of the vibration applying apparatus of FIG. 1;
FIG. 6 is a schematic diagram of the configuration of the gravity balance system of FIG. 1;
reference numerals: 1. vibrating the loading table top; 2. a guide device; 3. a vibration loading device; 4. a gravity balance system; 11. an upper plate; 12. a lower plate; 13. a steel trough; 14. a central tube; 21. a guide post; 22. a guide rail; 23. a support; 31. expanding the tooling; 32. a hydraulic bulb; 33. a vibration table; 41. a load bearing support; 42. hoisting a hoist; 43. a rubber rope group; 44. a sling.
Detailed Description
The technical solution of the present invention will be further described in detail with reference to the accompanying drawings and the detailed description. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the invention without making creative efforts, shall fall within the scope of the claimed invention.
As shown in fig. 1, a specific embodiment of a vertical vibration testing system for a clamped boundary of a large structure includes a vibration loading table 1, a guide device 2, a vibration loading device 3, and a gravity balance system 4.
As shown in fig. 2, the vibration loading table 1 in this embodiment has a plane-symmetric structure, and is in a structure of a double-layer aluminum plate sandwiched with an aluminum pipe, and includes an upper plate 11, a lower plate 12, a central pipe 14, and a steel groove 13. The upper and lower plates 11, 12 are each rectangular plate-like and are made of duralumin, and the central tube 14 is an aluminium square section aluminium tube. In this embodiment, the number of the center pipes 14 is four, and the center pipes are welded and fixed between the upper plate 11 and the lower plate 12 and arranged at equal intervals along the length direction of the upper plate 11.
The steel grooves 13 are two groups of steel sectional materials with C-shaped cross sections, and are arranged on two sides of the upper plate 11 along the length direction, and the steel grooves 13 are detachably connected with the upper plate 11 through bolts in the specific embodiment. The side wall of the steel groove 13 is provided with a threaded hole along the length direction, and the vibration loading table board 1 is connected with the gravity balance system 4 through the steel groove 13. The lower plate 12 is reserved with a connecting screw hole of the vibration loading device 3, and the lower plate 12 of the vibration loading table board 1 is fixedly connected with the vibration loading device 3 through a bolt.
Bolt holes and hoisting holes are further formed in the periphery of the upper plate 11 in the embodiment, so that the device is suitable for different hoisting modes and expanded test objects. In the embodiment, the vibration loading table top 1 is used for simulating a clamped boundary of a test piece and transmitting vibration to the test piece. The vibration loading table top 1 adopts a structural form that a double-layer aluminum plate clamps an aluminum pipe, and the structural form has the advantage that higher rigidity can be obtained on the premise of certain mass.
As shown in fig. 3 and 4, the guide device 2 in this embodiment includes a guide post 21, a guide rail 22, and a bracket 23. The guide post 21 and the guide rail 22 are steel profiles, and the guide post 21 is inserted into the guide rail 22 and is restricted to move only in the height direction of the guide rail 22. The lower end of the guide rail 22 is connected with a bracket 23 through a bolt, the lower end of the bracket 23 is connected with a foundation, and the guide column 21 is connected with the lower plate 12 of the vibration loading table board 1 through a bolt.
The guide means 2 in this embodiment functions as a motion guide, reducing vibrations in the cross-linking direction, while increasing the anti-overturning force. In the embodiment, two sets of guide devices 2 are used for realizing the guide function, the two sets of guide devices 2 are respectively fixed at two opposite ends of the diagonal of the vibration loading table board 1, and the motion direction of the guide column 21 in the guide rail 22 is along the height direction of the upper plate 11, so that the stable guide function is realized.
As shown in fig. 5, the vibration applying device 3 in this embodiment includes an expanding tool 31, a hydraulic bulb 32, and a vibration table 33. The expanding tool 31 is connected with the lower plate 12 of the vibration loading table board 1 through bolts. Each set of vibration loading device 3 comprises two hydraulic bulbs 32 which are arranged along the width direction of the vibration loading table board 1, the upper end faces of the hydraulic bulbs 32 are connected with the expansion tool 31 through bolts, the lower end faces of the hydraulic bulbs 32 are connected with the vibration table 33 through bolts, and the lower ends of the vibration tables 33 are fixed on a foundation.
The vibration loading device 3 in this embodiment is used for applying vibration excitation and performing motion decoupling and constraint simultaneously. In the embodiment, three sets of vibration loading devices 3 are adopted, each set of vibration loading device 3 comprises two hydraulic bulbs 32, an expansion tool 31 and a set of vibration table 33, and the two hydraulic bulbs are arranged at the lower end of the vibration loading table surface 1 at equal intervals.
As shown in fig. 6, the gravity balance system 4 in this embodiment includes a support bracket 41, a hoist 42, a rubber string set 43, and a hanging strip 44. The bearing support 41 comprises six upright columns and three cross beams, and the lower part of the bearing support 41 is fixedly connected with the foundation. The set of the hoist 42 is divided into three groups, and the two sets of the hoist 42 in each group are suspended below the corresponding beam of the bearing bracket 41. The upper end of the rubber rope group 43 is fixedly connected with the lower end of the hoist 42, and the lower end of the rubber rope group 43 is fixedly connected with the steel groove 13 on the side surface of the vibration loading table board 1 through the hanging strip 44.
The function of the gravity balance system 4 in this embodiment is to bear the weight of the test piece and the vibration loading table 1 and provide a flexible bearing way.
The test carried out by adopting the specific embodiment comprises the following steps:
s1, firstly, connecting the test piece to the vibration loading table board 1;
s2, connecting the vibration loading table top 1 with a gravity balance system 4;
s3, adjusting the height of the vibration loading table board 1 by adjusting the length of the hoist 42, and connecting the lower plate 12 of the vibration loading table board 1 with the vibration loading device 3;
and S4, testing according to the test content and requirements.
The beneficial technical effects obtained by the specific embodiment are as follows:
the fixed support boundary of the vibration loading table-board simulation test piece with high rigidity and low density is designed, and a plurality of vibration tables are used for single-axial layout to apply vibration loads. The vibration guide device is designed to inhibit transverse cross-linking vibration of the vibration loading table board and provide an anti-overturning function. A vibration loading device is designed to realize motion decoupling and freedom degree constraint, and a flexible gravity balance system is designed to bear the mass of a test piece and a loading platform. The test system in the embodiment can truly simulate the clamped boundary of a large-scale structure, uniformly apply a vibration environment and realize long-time stable loading, thereby effectively checking the environmental adaptability of a test piece, solving the problems in the prior art and having outstanding substantive characteristics and remarkable progress.
Claims (10)
1. A vertical vibration test system for a large-scale structure clamped boundary is characterized by comprising a vibration loading table top (1), a guide device (2), a vibration loading device (3) and a gravity balance system (4);
the whole vibration loading table top (1) is of a plane-symmetrical structure, adopts a structural form that a double-layer aluminum plate clamps an aluminum pipe, and comprises an upper plate (11), a lower plate (12), a central pipe (14) and a steel groove (13);
the two sets of the guide devices (2) are respectively fixed at two opposite ends of the vibration loading table board (1), and each guide device (2) comprises a guide column (21), a guide rail (22) and a support (23);
the vibration loading device (3) comprises an expansion tool (31), hydraulic bulbs (32) and a vibration table (33), each set of vibration loading device (3) comprises two hydraulic bulbs (32) and is arranged along the width direction of the vibration loading table top (1);
the gravity balance system (4) comprises a bearing support (41), a hoist (42), a rubber rope group (43) and a hanging strip (44).
2. The vertical vibration test system for the clamped boundary of the large-scale structure according to claim 1, characterized in that: the upper plate (11) and the lower plate (12) are both rectangular plate-shaped and made of duralumin, and the central tube (14) is an aluminum square-section aluminum tube.
3. The vertical vibration test system for the clamped boundary of the large-scale structure according to claim 2, characterized in that: the number of the central tubes (14) is four, the central tubes are welded and fixed between the upper plate (11) and the lower plate (12), and the central tubes are arranged at equal intervals along the length direction of the upper plate (11).
4. The vertical vibration test system for the clamped boundary of the large-scale structure according to claim 3, characterized in that: the steel groove (13) are C-shaped section steel sectional materials, and are two groups in total, and are arranged on two sides of an upper plate (11) along the length direction, the steel groove (13) is detachably connected with the upper plate (11), threaded holes are formed in the side wall of the steel groove (13) along the length direction, a vibration loading table board (1) is connected with a gravity balance system (4) through the steel groove (13), connection threaded holes are reserved in the lower plate (12) and are connected with a vibration loading device (3), and the lower plate (12) of the vibration loading table board (1) is fixedly connected with the vibration loading device (3) through bolts.
5. The vertical vibration test system for the clamped boundary of the large-scale structure according to claim 4, wherein: bolt holes and hoisting holes are further formed in the periphery of the middle upper plate (11).
6. The vertical vibration test system for the clamped boundary of the large-scale structure according to claim 1, characterized in that: the guide post (21) and the guide rail (22) are made of steel sectional materials, the guide post (21) and the guide rail (22) form a sliding pair, the moving direction of the guide post (21) in the guide rail (22) is along the height direction of the upper plate (11), the lower end of the guide rail (22) is connected with the support (23) through bolts, the lower end of the support (23) is connected with a foundation, and the guide post (21) is connected with the lower plate (12) of the vibration loading table board (1) through bolts.
7. The vertical vibration test system for the clamped boundary of the large-scale structure according to claim 1, characterized in that: the expansion tool (31) is connected with a lower plate (12) of the vibration loading table board (1) through bolts, the upper end face of the hydraulic ball head (32) is connected with the expansion tool (31) through bolts, the lower end face of the hydraulic ball head (32) is connected with the vibration table (33) through bolts, and the lower end of the vibration table (33) is fixed on a foundation.
8. The vertical vibration test system for the clamped boundary of the large-scale structure according to claim 7, characterized in that: the vibration loading device (3) comprises three sets, each set of vibration loading device (3) comprises two hydraulic bulbs (32), an expansion tool (31) and a set of vibration table (33), and the vibration loading devices are arranged at the lower end of the vibration loading table top (1) at equal intervals.
9. The vertical vibration test system for the clamped boundary of the large-scale structure according to claim 1, characterized in that: the bearing support (41) comprises six upright columns and three cross beams, and the lower part of the bearing support (41) is fixedly connected with the foundation; the number of the hoist blocks (42) is six, the hoist blocks are divided into three groups, and the two hoist blocks (42) in each group are suspended below the cross beam corresponding to the bearing support (41); the upper end of the rubber rope group (43) is fixedly connected with the lower end of the hoist (42), and the lower end of the rubber rope group (43) is fixedly connected with the steel groove (13) on the side surface of the vibration loading table board (1) through a hanging strip (44).
10. A use method of a large-scale structure clamped boundary vertical vibration test system is characterized in that the large-scale structure clamped boundary vertical vibration test system as claimed in any one of claims 1 to 9 is adopted, and the method comprises the following steps:
s1, firstly, connecting the test piece to the vibration loading table board (1);
s2, connecting the vibration loading table board (1) with a gravity balance system (4);
s3, adjusting the height of the vibration loading table board (1) by adjusting the length of the hoist (42), and connecting the lower board (12) of the vibration loading table board (1) with the vibration loading device (3);
and S4, testing according to the test content and requirements.
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| CN202110569006.0A CN113295362A (en) | 2021-05-25 | 2021-05-25 | Vertical vibration test system for solid support boundary of large-scale structure and use method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114414186A (en) * | 2021-12-10 | 2022-04-29 | 北京航天希尔测试技术有限公司 | A 3-DOF Electrodynamic Vibration Test System with Isotropic Layout |
| CN114476147A (en) * | 2021-12-31 | 2022-05-13 | 北京空间机电研究所 | A multi-point lifting static test loading device and method for a spacecraft cabin |
| CN114810889A (en) * | 2022-07-01 | 2022-07-29 | 中国飞机强度研究所 | High-bearing low-rigidity supporting device for aircraft vibration test |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5594177A (en) * | 1995-05-17 | 1997-01-14 | Hanse; John K. | Shaker table |
| CN2821785Y (en) * | 2005-09-14 | 2006-09-27 | 苏州东菱振动试验仪器有限公司 | New bottom guide mechanism of electric vibrating table |
| CN102650563A (en) * | 2011-12-20 | 2012-08-29 | 北京卫星环境工程研究所 | Ground testing system for on-track micro vibration of spacecraft |
| CN103063390A (en) * | 2012-12-31 | 2013-04-24 | 浙江工业大学 | Hoisting device of horizontal modality test |
| CN107192567A (en) * | 2016-03-15 | 2017-09-22 | 北京强度环境研究所 | Large-scale full-scale system generalization combined environment test device |
| CN109269747A (en) * | 2018-10-30 | 2019-01-25 | 东风商用车有限公司 | Clamp for vibration test of lithium ion power battery pack |
| CN110044563A (en) * | 2019-04-25 | 2019-07-23 | 北京卫星环境工程研究所 | Large-scale vertical vibration pilot system |
| CN110895186A (en) * | 2019-11-28 | 2020-03-20 | 北京机电工程研究所 | Vibration system comprising a plurality of vibration tables and vibration test method |
| US20200149990A1 (en) * | 2018-11-09 | 2020-05-14 | Fatri (Xiamen) Technologies Co., Ltd. | Vibration table |
| CN111982440A (en) * | 2020-09-01 | 2020-11-24 | 天津航天瑞莱科技有限公司 | A dual-stage parallel-excited vibration test system for a liquid nitrogen bifurcated pipeline |
-
2021
- 2021-05-25 CN CN202110569006.0A patent/CN113295362A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5594177A (en) * | 1995-05-17 | 1997-01-14 | Hanse; John K. | Shaker table |
| CN2821785Y (en) * | 2005-09-14 | 2006-09-27 | 苏州东菱振动试验仪器有限公司 | New bottom guide mechanism of electric vibrating table |
| CN102650563A (en) * | 2011-12-20 | 2012-08-29 | 北京卫星环境工程研究所 | Ground testing system for on-track micro vibration of spacecraft |
| CN103063390A (en) * | 2012-12-31 | 2013-04-24 | 浙江工业大学 | Hoisting device of horizontal modality test |
| CN107192567A (en) * | 2016-03-15 | 2017-09-22 | 北京强度环境研究所 | Large-scale full-scale system generalization combined environment test device |
| CN109269747A (en) * | 2018-10-30 | 2019-01-25 | 东风商用车有限公司 | Clamp for vibration test of lithium ion power battery pack |
| US20200149990A1 (en) * | 2018-11-09 | 2020-05-14 | Fatri (Xiamen) Technologies Co., Ltd. | Vibration table |
| CN110044563A (en) * | 2019-04-25 | 2019-07-23 | 北京卫星环境工程研究所 | Large-scale vertical vibration pilot system |
| CN110895186A (en) * | 2019-11-28 | 2020-03-20 | 北京机电工程研究所 | Vibration system comprising a plurality of vibration tables and vibration test method |
| CN111982440A (en) * | 2020-09-01 | 2020-11-24 | 天津航天瑞莱科技有限公司 | A dual-stage parallel-excited vibration test system for a liquid nitrogen bifurcated pipeline |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114414186A (en) * | 2021-12-10 | 2022-04-29 | 北京航天希尔测试技术有限公司 | A 3-DOF Electrodynamic Vibration Test System with Isotropic Layout |
| CN114476147A (en) * | 2021-12-31 | 2022-05-13 | 北京空间机电研究所 | A multi-point lifting static test loading device and method for a spacecraft cabin |
| CN114476147B (en) * | 2021-12-31 | 2022-11-01 | 北京空间机电研究所 | Spacecraft cabin multi-point hoisting static test loading device and method |
| CN114810889A (en) * | 2022-07-01 | 2022-07-29 | 中国飞机强度研究所 | High-bearing low-rigidity supporting device for aircraft vibration test |
| CN114810889B (en) * | 2022-07-01 | 2022-10-14 | 中国飞机强度研究所 | High-bearing low-rigidity supporting device for aircraft vibration test |
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Application publication date: 20210824 |