CN109060287B - Six-freedom-degree earthquake simulation vibration device for simulating earthquake vibration - Google Patents
Six-freedom-degree earthquake simulation vibration device for simulating earthquake vibration Download PDFInfo
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- CN109060287B CN109060287B CN201810970920.4A CN201810970920A CN109060287B CN 109060287 B CN109060287 B CN 109060287B CN 201810970920 A CN201810970920 A CN 201810970920A CN 109060287 B CN109060287 B CN 109060287B
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- 238000004088 simulation Methods 0.000 title abstract description 25
- 230000009471 action Effects 0.000 claims abstract description 39
- 230000007246 mechanism Effects 0.000 claims description 13
- 239000002356 single layer Substances 0.000 claims description 2
- 239000002689 soil Substances 0.000 abstract description 20
- 230000000694 effects Effects 0.000 abstract description 6
- 238000010008 shearing Methods 0.000 abstract description 5
- 238000012360 testing method Methods 0.000 description 7
- 238000002474 experimental method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
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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
- G01M7/06—Multidirectional 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
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Abstract
A six-degree-of-freedom earthquake simulation vibration device for simulating earthquake vibration comprises a supporting platform, wherein the supporting platform comprises a table board for supporting an earthquake model, the table board is formed by splicing a plurality of action units with the same structure, each action unit can independently move up and down perpendicular to the table board, and the supporting platform is supported on a second platform frame through a first platform frame and moves in the horizontal plane. The six-degree-of-freedom seismic simulation vibration device can provide vertical motion in a local split mode in the vertical direction through the table top formed by splicing a plurality of action units, so that local actuation can be directly performed on the soil body part of a seismic model, the model soil body can generate a real shearing effect through the continuous action of separating the model soil body, and the horizontal front-back and left-right motion can be provided through the first platform frame and the second platform frame, so that the six-degree-of-freedom all-directional seismic simulation is formed.
Description
Technical Field
The invention relates to a test device for simulating earthquake, in particular to an experiment device capable of simulating earthquake vibration with six degrees of freedom, which is particularly used for simulating the relative motion condition of local areas of the earthquake.
Background
The earthquake simulation vibration device is widely applied to the fields of aerospace, earthquake simulation, product reliability, geotechnical engineering and the like, wherein the earthquake simulation is an important application field of the earthquake simulation vibration device.
The propagation of seismic waves inside the earth is divided into longitudinal waves and transverse waves. The waves whose vibration direction coincides with the propagation direction are longitudinal waves (P-waves), and the longitudinal waves from the underground cause the ground to vibrate up and down. The waves in the vibration direction perpendicular to the propagation direction are transverse waves (S-waves), and the transverse waves from the underground cause horizontal shaking of the ground. Simulating seismic vibrations has to take into account the horizontal as well as the vertical motion of the simulated earthquake.
For example, chinese patent application CN 200910066560.6 discloses a horizontal bidirectional earthquake simulation vibration table integrated system, which simulates the vibration in the horizontal direction of the earthquake, for example, chinese patent application CN 201310491139.6 discloses a double-table large-displacement three-axis six-degree-of-freedom earthquake simulation vibration device and method, the vibration device provided in the prior art simulates the vibration in the horizontal direction of the earthquake, and the vibration in the vertical direction is realized by the movement of the whole table, similarly, the vibration table for the centrifugal machine disclosed in chinese patent application CN 201110139990.3 is closer to the prior art, and the vibration table in the prior art can simulate the vibration in the horizontal and vertical directions of the earthquake at the same time, thereby obtaining more real earthquake experiment effect.
It can be seen from the above prior art that the existing earthquake simulation experiment device is still in a state of simply simulating earthquake vibration, the whole earthquake model is arranged on the integrated table top of the vibration table during the experiment, the power device of the vibration table pushes the whole table top to move front and back and left and right in the horizontal direction or pushes the whole table top to move up and down in the vertical direction, and the whole earthquake model can move along with the horizontal and vertical movements of the table top. Because the volume of the experiment platform is limited, the largest table top of a single experiment platform rarely exceeds 20m multiplied by 15m, so the overall size of the earthquake model is not too large, the experiment can only obtain the overall earthquake data of the whole model after being subjected to severe vibration through simulation, the slight vibration of low magnitude has little influence on the whole model in the scale range of the model due to the small size of the model, and the earthquake influence caused by the relative motion of local areas cannot be simulated because the earthquake model moves integrally.
Moreover, similar to the six-degree-of-freedom seismic simulation vibration device disclosed in chinese patent application CN 201310491139.6, the double-deck provided by the device has a too large structural height, a high center of gravity and poor stability, the model is easy to overturn in an environment such as a centrifugal gravity test, and too many driving devices are arranged, which results in poor reliability of the device, complex control and low practicability.
Disclosure of Invention
The technical problem underlying the present invention is to provide a six degree of freedom seismic modeling vibration apparatus for modeling seismic vibrations that reduces or avoids the aforementioned problems.
In order to solve the technical problem, the invention provides a six-degree-of-freedom earthquake simulation vibration device for simulating earthquake vibration, which is used for simulating the vibration of an earthquake model under an earthquake, and comprises a supporting platform; the supporting platform comprises a table top for supporting the seismic model, a supporting frame arranged below the table top and a supporting plate positioned below the supporting frame; the supporting frame is detachably arranged on the supporting plate; the table top is formed by splicing a plurality of action units with the same structure, and a corresponding driving mechanism is arranged below each action unit; each driving mechanism is arranged in the independent accommodating space which is separated from each other in the supporting frame; the action unit comprises a horizontal platform plate, the horizontal platform plate is of a rectangular structure, and a plurality of horizontal platform plates can be spliced into a continuous and connected complete supporting surface; a magnetic guide rod is arranged below the horizontal platform plate, and the driving mechanism is an electromagnetic coil arranged around the magnetic guide rod; a guide rod is arranged below each of four corners of the horizontal platform plate, and a guide hole matched with the guide rod in structure is formed in the support frame; the support frame is provided with a through hole for the magnetic guide rod to pass through; the support platform is supported on a second platform frame through a first platform frame; the supporting platform is arranged on the first platform frame and can move in a first horizontal direction relative to the first platform frame; the first platform frame is supported on the second platform frame and can move relative to the second platform frame in a second horizontal direction perpendicular to the first horizontal direction; the simulated vibration device further comprises a control unit connected with the driving mechanism, and the control unit can independently control each action unit to move up and down perpendicular to the table board.
Preferably, two sides of the supporting platform parallel to the first horizontal direction are provided with first rollers capable of moving along a track on the first platform frame, and two sides of the supporting platform perpendicular to the first horizontal direction are respectively provided with a first return spring and a first driving rod connected with the first platform frame.
Preferably, two sides of the first platform frame parallel to the second horizontal direction are provided with second rollers capable of moving along a track on the second platform frame, and two sides of the first platform frame perpendicular to the second horizontal direction are respectively provided with a second return spring and a second driving rod connected with the second platform frame.
The six-degree-of-freedom earthquake simulation vibration device for simulating earthquake vibration can provide vertical motion in a vertical direction through the table top formed by splicing the action units in a local splitting mode, so that the soil body part of the earthquake model can be directly actuated locally, the model soil body can generate a real shearing effect through the continuous action of separating the model soil body, the position of the model can be selected at will to actuate initially, and the action of the soil body caused by the earthquake, particularly the motion condition of the local earthquake region, can be well simulated. In addition, the invention can also provide the front-back and left-right movement in the horizontal direction through the first platform frame and the second platform frame, thereby forming the omnibearing seismic simulation with six degrees of freedom.
Drawings
The drawings are only for purposes of illustrating and explaining the present invention and are not to be construed as limiting the scope of the present invention. Wherein,
FIG. 1 is a schematic diagram showing the principle of vertical motion for a six degree-of-freedom seismic analog vibratory apparatus according to an embodiment of the invention;
FIG. 2 is a schematic diagram of a six-degree-of-freedom seismic modeling vibration apparatus according to another embodiment of the present invention;
FIG. 3 is an exploded view of a vertical motion configuration for a six degree-of-freedom seismic modeling vibration apparatus according to yet another embodiment of the present invention;
fig. 4 is a schematic sectional view showing an action unit of the vertical movement structure of fig. 3.
Detailed Description
In order to more clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will now be described with reference to the accompanying drawings. Wherein like parts are given like reference numerals.
Fig. 1 is a schematic diagram showing a principle of vertical motion for a six-degree-of-freedom seismic modeling vibration apparatus according to an embodiment of the present invention, and fig. 2 is a schematic diagram showing a structure of a six-degree-of-freedom seismic modeling vibration apparatus according to another embodiment of the present invention, which is suitable for modeling vibration of a seismic model 80 under an earthquake, and particularly for modeling relative motion of a local area of the seismic model 80, as shown in fig. 1-2, and includes a support platform 500. The support platform 500 includes a table 20 for supporting the seismic model 80, a support frame 1 disposed below the table 20, and a support plate 30 located below the support frame 1.
As shown in fig. 1, unlike the integral table top in the prior art, the table top 20 of the present invention is formed by splicing a plurality of action units 2 having the same structure, a corresponding driving mechanism 11 is disposed below each action unit 2, and the analog vibration device of the present invention further includes a control unit 70 connected to the driving mechanism 11, wherein the control unit 70 can independently control each action unit 2 to move up and down perpendicular to the table top 20.
The technical scheme provided by the invention is different from the experimental device for simulating the earthquake mentioned in the background art in that in the prior art, an earthquake model is placed on an integrated table top, and in the simulation process, the model shakes along with the integrated table top, but in the technical scheme provided by the invention, an earthquake model 80 is directly placed on a table top 20 formed by splicing a plurality of action units 2 with the same structure, each action unit 2 can independently move up and down vertical to the table top 20 under the control of a control unit 70, so that the soil part of the earthquake model 80 supported by the action unit can be directly locally actuated, the control unit 70 can be a single chip microcomputer or an industrial personal computer, and different power supplies can be provided for each action unit 2 through a preset program, so that each action unit 2 can vertically move according to a certain frequency, so that the movement of the adjacent action units 2 can be made to achieve a sine wave or other waveform vibration simulation. Because each action unit 2 can directly act on the soil body part of the model supported by the action unit, longitudinal waves (P waves) can be directly simulated, and horizontal displacement generated between soil bodies under the shearing action can also truly simulate transverse waves (S waves), namely, the technical scheme of the invention can directly enable the model soil body to generate a true shearing effect, and can arbitrarily select to perform initial action on the local position of the geotechnical model, thereby well simulating the soil body action caused by earthquake, in particular the motion condition of the local area of the earthquake.
In addition, as shown in fig. 2, in the analog vibration device of the present invention, the support platform 500 is supported on a second platform frame 200 through a first platform frame 100; the support platform 500 is disposed on the first platform frame 100 and is movable in a first horizontal direction with respect to the first platform frame 100; the first platform frame 100 is supported on the second platform frame 200 and is movable relative to the second platform frame 200 in a second horizontal direction perpendicular to the first horizontal direction.
That is, the six-degree-of-freedom seismic simulation vibration device of the present invention can provide the vertical motion with partial separation in the vertical direction by the table 20 formed by splicing the plurality of action units 2, and can also provide the horizontal front-back and left-right motion by the first platform frame 100 and the second platform frame 200, thereby constituting the six-degree-of-freedom omnidirectional seismic simulation.
In addition, as can be seen from fig. 2, the support platform 500, the first platform frame 100 and the second platform frame 200 in the six-degree-of-freedom seismic simulation vibration device are mutually nested in a single-layer plane, so that compared with the prior art, the structural height is reduced, the center of gravity is low, the stability is good, the model is not easy to overturn in the environment such as a centrifugal gravity test, the driving structure is simple, the reliability is good, and the control is easy.
In one embodiment, as shown in fig. 2, two sides of the supporting platform 500 parallel to the first horizontal direction are provided with first rollers 501 capable of moving along the rails on the first platform frame 100, and two sides of the supporting platform 500 perpendicular to the first horizontal direction are respectively provided with a first return spring 502 and a first driving rod 503 connected to the first platform frame 100. The first driving rod 503 may be a hydraulic or pneumatic controlled driving rod, so that the first horizontal direction vibration of the supporting platform 500 in case of earthquake can be well controlled and simulated.
In a preferred embodiment, the first platform frame 100 is provided with second rollers 601 capable of moving along the rails on the second platform frame 200 on two sides parallel to the second horizontal direction, and the first platform frame 100 is provided with a second return spring 602 and a second driving rod 603 connected to the second platform frame 200 on two sides perpendicular to the second horizontal direction. Similarly, the second driving rod 603 may also be a driving rod controlled by hydraulic pressure or pneumatic pressure, so as to better control and simulate the second horizontal direction vibration of the supporting platform 500 in case of earthquake.
FIG. 3 is an exploded view of a vertical motion configuration for a six degree-of-freedom seismic modeling vibration apparatus according to yet another embodiment of the present invention; fig. 4 is a schematic sectional view showing an action unit of the vertical movement structure of fig. 3. As shown in fig. 3-4, in a preferred embodiment, the action unit 2 includes a horizontal platform plate 21, a magnetic guide rod 22 is disposed below the horizontal platform plate 21, and the driving mechanism 11 is an electromagnetic coil disposed around the magnetic guide rod 22, that is, in this embodiment, the action unit 2 moves the magnetic guide rod 22 up and down by the action of electromagnetic force, the support frame 1 is provided with a through hole 15 for the magnetic guide rod 22 to pass through, the magnetic guide rod 22 is guided by the through hole 15, and the support frame 1 around the through hole 15 supports the horizontal platform plate 21 to limit the position of the horizontal platform plate.
The motion units 2 constituting the table top 20 may be arranged continuously or only in certain areas of the table top 20, although a continuous arrangement is preferred to provide a more flexible simulation of local movements. In one embodiment, the horizontal platform plates 21 are rectangular, so that the horizontal platform plates 21 can be spliced into a continuous and complete supporting surface, and the deformation of the soil body can be continuous when the table top 20 actuates the model, thereby reducing errors. Of course, the rectangular structure is also convenient for positioning the guiding structure arranged at the bottom, for example, in another preferred embodiment, a guiding rod 23 is arranged below each of the four corners of the horizontal platform plate 21, and the supporting frame 1 is provided with a guiding hole 13 matched with the structure of the guiding rod 23. The guide rod 23 is arranged to limit the deflection displacement of the magnetic guide rod 22, so as to avoid the magnetic guide rod 22 from being blocked, ensure that the vertical movement of the magnetic guide rod 22 is more accurate, drive the electromagnetic coil to obtain more accurate movement distance through the current, and ensure that uniform acting force is applied to the model soil body.
Of course, in another embodiment, a flexible isolation pad (not shown), such as a plastic film with a thickness of 3-5mm, may be disposed between the table top 20 and the model 80, i.e. above the horizontal platform plate 21, and the isolation pad may cover the entire supporting frame 1, which may ensure that the actuation force of the table top 20 on the soil of the model 80 can be uniformly and continuously applied, and the soil can be prevented from being scattered.
In order to enable the technical solution of the present invention to be used in a wet environment such as flooding, waterproof gaskets (not shown) are disposed in the through hole 15 and the guide hole 13, because the process of simulating the earthquake may involve environmental simulation using water, such as the landslide model test technology mentioned in the book "landslide model test theory and application thereof" published by chinese water conservancy and hydropower press. Further, it is preferable that each driving mechanism 11 is disposed in the separated independent accommodating space 12 inside the supporting frame 1 (as shown in fig. 4), the separated independent accommodating space 12 can independently protect the circuit components thereon, so as to avoid local damage and involvement of the adjacent driving mechanisms 11, and meanwhile, the separated independent accommodating space 12 disposed inside the supporting frame 1 can facilitate modular installation, debugging and maintenance of the relevant electromagnetic coil, the magnetic conducting rod 22, and the like, so as to avoid potential hazards such as short circuit of the lines of the electrical components. For example, as shown in the figure, the supporting frame 1 is detachably mounted on the supporting plate 30, a waterproof gasket can be disposed between the supporting frame 1 and the supporting plate 30, a sealed accommodating space 12 can be obtained through the cooperation of the supporting plate 30, the supporting frame 1 and the waterproof gasket, and environmental tests under different conditions can be facilitated. Meanwhile, the whole experimental device can be integrally installed by the supporting plate 30, so that the experimental device can be conveniently moved and transported, and the experimental device is particularly suitable for being further arranged in the test equipment such as a centrifuge basket.
In summary, the six-degree-of-freedom seismic simulation vibration device for simulating seismic vibration provided by the invention provides a table top for supporting a model, which is formed by splicing a plurality of action units, each action unit can independently move up and down perpendicular to the table top under the control of a control unit, so that local actuation can be directly performed on a soil body part of the seismic model supported by the action unit, the model soil body can generate a real shearing effect through continuous action of separating the model soil body, the position of the model can be arbitrarily selected to perform initial actuation, and the soil body action caused by an earthquake, particularly the motion condition of a local seismic region, can be well simulated.
It should be appreciated by those of skill in the art that while the present invention has been described in terms of several embodiments, not every embodiment includes only a single embodiment. The description is given for clearness of understanding only, and it is to be understood that all matters in the embodiments are to be interpreted as including technical equivalents which are related to the embodiments and which are combined with each other to illustrate the scope of the present invention.
The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention. Any equivalent alterations, modifications and combinations can be made by those skilled in the art without departing from the spirit and principles of the invention.
Claims (1)
1. A six degree-of-freedom seismic modeling vibration apparatus for modeling seismic vibrations, for modeling vibrations of a seismic model (80) under an earthquake, the apparatus comprising a support platform (500); the supporting platform (500) comprises a table top (20) for supporting the seismic model (80), a supporting frame (1) arranged below the table top (20) and a supporting plate (30) positioned below the supporting frame (1); the support frame (1) is detachably arranged on the support plate (30); the table top (20) is formed by splicing a plurality of action units (2) with the same structure, and a corresponding driving mechanism (11) is arranged below each action unit (2); each driving mechanism (11) is arranged in independent accommodating spaces (12) which are separated from each other in the support frame (1); the action unit (2) comprises a horizontal platform plate (21), the horizontal platform plate (21) is of a rectangular structure, and a plurality of horizontal platform plates (21) can be spliced into a continuous connected complete supporting surface; a magnetic guide rod (22) is arranged below the horizontal platform plate (21), and the driving mechanism (11) is an electromagnetic coil arranged around the magnetic guide rod (22); a guide rod (23) is arranged below four corners of the horizontal platform plate (21), and a guide hole (13) structurally matched with the guide rod (23) is formed in the support frame (1); the support frame (1) is provided with a through hole (15) for the magnetic guide rod (22) to pass through;
said support platform (500) is supported on a second platform frame (200) by a first platform frame (100); the supporting platform (500) is arranged on the first platform frame (100) and can move in a first horizontal direction relative to the first platform frame (100); the first platform frame (100) is supported on the second platform frame (200) and can move relative to the second platform frame (200) in a second horizontal direction perpendicular to the first horizontal direction; the support platform (500), the first platform frame (100) and the second platform frame (200) are nested within a single-layer plane;
the analog vibration device further comprises a control unit (70) connected with the driving mechanism (11), and each action unit (2) can be independently controlled by the control unit (70) to move up and down perpendicular to the table top (20);
two sides of the supporting platform (500) parallel to the first horizontal direction are provided with first rollers (501) capable of moving along a track on the first platform frame (100), and two sides of the supporting platform (500) perpendicular to the first horizontal direction are respectively provided with a first return spring (502) and a first driving rod (503) connected with the first platform frame (100);
and second rollers (601) capable of moving along a track on the second platform frame (200) are arranged on two sides of the first platform frame (100) parallel to the second horizontal direction, and a second return spring (602) and a second driving rod (603) connected with the second platform frame (200) are respectively arranged on two sides of the first platform frame (100) perpendicular to the second horizontal direction.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810970920.4A CN109060287B (en) | 2016-01-20 | 2016-01-20 | Six-freedom-degree earthquake simulation vibration device for simulating earthquake vibration |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810970920.4A CN109060287B (en) | 2016-01-20 | 2016-01-20 | Six-freedom-degree earthquake simulation vibration device for simulating earthquake vibration |
| CN201610035916.XA CN105466658B (en) | 2016-01-20 | 2016-01-20 | A kind of six degree of freedom earthquake simulation vibrating device |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610035916.XA Division CN105466658B (en) | 2016-01-20 | 2016-01-20 | A kind of six degree of freedom earthquake simulation vibrating device |
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| CN109060287A CN109060287A (en) | 2018-12-21 |
| CN109060287B true CN109060287B (en) | 2020-01-14 |
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| CN201810970920.4A Expired - Fee Related CN109060287B (en) | 2016-01-20 | 2016-01-20 | Six-freedom-degree earthquake simulation vibration device for simulating earthquake vibration |
| CN201610035916.XA Expired - Fee Related CN105466658B (en) | 2016-01-20 | 2016-01-20 | A kind of six degree of freedom earthquake simulation vibrating device |
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| CN201610035916.XA Expired - Fee Related CN105466658B (en) | 2016-01-20 | 2016-01-20 | A kind of six degree of freedom earthquake simulation vibrating device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106327987A (en) * | 2016-10-31 | 2017-01-11 | 陈�峰 | Earthquake simulation platform |
| CN106596007A (en) * | 2016-11-01 | 2017-04-26 | 同济大学 | Vibration device for structure collapse test |
| CN106500941A (en) * | 2016-11-02 | 2017-03-15 | 同济大学 | Small two-dimension vibration test platform |
| CN107036776A (en) * | 2017-05-15 | 2017-08-11 | 金陵科技学院 | A kind of novel vibration platform |
| CN108122473A (en) * | 2018-01-18 | 2018-06-05 | 浙江大学城市学院 | A kind of experimental rig for simulating liquefaction of sand phenomenon when different earthquake magnitude earthquakes occur |
| CN110146242B (en) * | 2019-05-17 | 2021-04-02 | 扬州市玄裕电子有限公司 | Multilayer circuit board detection device |
| CN110542526B (en) * | 2019-08-13 | 2021-04-02 | 河南工业职业技术学院 | Civil engineering structure shock resistance test device |
| CN111398514B (en) * | 2020-04-15 | 2021-07-09 | 华侨大学 | Small-size building fire spread testing arrangement under simulation earthquake vertical vibration |
| CN112542080B (en) * | 2020-12-16 | 2022-04-08 | 中国科学院空天信息创新研究院 | Simulation test device based on three-dimensional digital earth geological disaster |
| CN112982505B (en) * | 2021-02-08 | 2022-09-20 | 上海富城信息科技有限公司 | Soil deformation simulation and detection device and simulation and detection method thereof |
| CN114279662B (en) * | 2021-12-14 | 2024-02-09 | 北京云迹科技股份有限公司 | Laser radar vibration testing device |
| CN114486139B (en) * | 2022-01-20 | 2023-07-07 | 西华大学 | Vibration platform |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09178605A (en) * | 1995-12-26 | 1997-07-11 | Mitsubishi Heavy Ind Ltd | Pressure driving type vibration tester |
| US20020005069A1 (en) * | 2000-05-01 | 2002-01-17 | Satcon Technology Corporation | Six degree of freedom magnetically levitated vibration table |
| JP4820786B2 (en) * | 2007-07-30 | 2011-11-24 | 株式会社神戸製鋼所 | Impact tensile stress measurement method |
| CN201749019U (en) * | 2010-07-15 | 2011-02-16 | 苏州苏试试验仪器有限公司 | Electric hammer type triaxial six-DOF (degree of freedom) vibration test device |
| CN102331332B (en) * | 2011-06-16 | 2013-11-27 | 中国海洋大学 | Test device with controllable vibrational degrees of freedom for vortex-induced vibration of cylinders |
| CN202596118U (en) * | 2012-05-07 | 2012-12-12 | 常玉德 | Floor vibration system |
| CN103063394A (en) * | 2012-12-30 | 2013-04-24 | 西南交通大学 | Continuous space multi-dimensional seismic wave simulator |
| CN103247217A (en) * | 2013-04-25 | 2013-08-14 | 上海交通大学 | Parallel connection type six-dimensional output and thirty-two input redundancy fault-tolerant drive simulator |
| CN203551244U (en) * | 2013-10-11 | 2014-04-16 | 浙江大学 | Double-table-surface large-displacement three-axis six-degree-of-freedom earthquake simulation vibrating device |
| CN103575489B (en) * | 2013-10-11 | 2015-11-04 | 浙江大学 | Dual stage face Large travel range Triaxiality and six degrees of freedom earthquake simulation vibrating device and method |
| CN204461780U (en) * | 2015-03-27 | 2015-07-08 | 胡卫建 | Topographic change and restructural comprehensive test device |
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2016
- 2016-01-20 CN CN201810970920.4A patent/CN109060287B/en not_active Expired - Fee Related
- 2016-01-20 CN CN201610035916.XA patent/CN105466658B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN109060287A (en) | 2018-12-21 |
| CN105466658B (en) | 2018-10-09 |
| CN105466658A (en) | 2016-04-06 |
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