CN106813885A - A kind of moving mass experimental rig and test method for simulating many arbitrary boundary conditions - Google Patents
A kind of moving mass experimental rig and test method for simulating many arbitrary boundary conditions Download PDFInfo
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- CN106813885A CN106813885A CN201611236478.XA CN201611236478A CN106813885A CN 106813885 A CN106813885 A CN 106813885A CN 201611236478 A CN201611236478 A CN 201611236478A CN 106813885 A CN106813885 A CN 106813885A
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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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- 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
- G01M7/027—Specimen mounting arrangements, e.g. table head adapters
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- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The present invention relates to mobile load technical field, refer in particular to a kind of moving mass experimental rig and test method for simulating many arbitrary boundary conditions, including motor, single-wheel moving cart, test specimen plate, branch pedestal and pedestal, branch pedestal is fixed on pedestal, branch pedestal is provided with grip device, test specimen plate is correspondingly arranged on grip device, and single-wheel moving cart is driven by motor and moved on test specimen plate, and test specimen plate is provided with the strain-ga(u)ge transducer of test.The present invention adjusts the translational speed of moving mass by motor using such structure setting, and adjusts moving mass by the counterweight frame in single-wheel moving cart, and the simulation of various boundary is carried out by the bolt of boundary.Its simple structure, easy to operate, manufacture operating cost rationally, can carry out the moving mass experiment of many arbitrary boundary conditions in laboratory.
Description
Technical field
The present invention relates to mobile load technical field, a kind of moving mass experiment dress for simulating many arbitrary boundary conditions is refered in particular to
Put and test method.
Background technology
When vehicle passes through bridge, due to vehicle impedimenta and speed effect, bridge structure can be caused to vibrate, and bridge
Vibration can influence the normally travel of vehicle again in turn.Due to visitors such as the rotation of vehicle itself each several part and bridge pavement out-of-flatnesses
The presence of sight factor so that vibrated between bridge and vehicle more violent.Researcher is generally overall causing vehicle-bridge system to vibrate
The interaction of aggravation, interactional problem are referred to as vehicle bridge coupling vibration problem, and bridge is when vehicle passes through bridge except wanting
Static behavior is born, is still suffered from including bridge because mobile load causes factors such as vibrating the inertia force for producing.These are mutual
Active force, causes the structural elements of bridge to produce fatigue, structural stability to reduce and shorten with service life.More seriously shake
When dynamic frequency and excessive amplitude, directly the security of vehicle operation can also be produced and constitute influence.When the frequency of vehicle is equal or
When close when certain rank intrinsic frequency of bridge, covibration can be produced, vibration aggravation vehicle and bridge will directly threaten the people
Lives and properties.Accident each time can all bring bitter experience lesson, help people to update the design of structure,
It is allowed to adapt to objective law.Vehicle-bridge coupling is constantly subjected to pay attention to, while the bridge vibration damping under Moving Load is also because it is being handed over
Lead to important function in safety and turn into an important topic.
For the fixture of support with adjustable form, some patents are had been disclosed at present, but existing patent realizes difference
Support style is realized by changing different bearings, and this patent changes freely-supported and the clamped reality on same fixture
It is existing.And in implementation method, this experimental rig realizes freely-supported with clamped conversion by being bolted in rotating shaft side.
The material of experimental facilities had so both been reduced, and the time required for reducing replacing time mode.Additionally, the present invention is set
The fixture of meter can realize the experiment of the plate of different length and width.Mobile load testing method and device designed by the present invention
Find no similar patent and document.[1] Qin Qinghua；Wang Tiejun；A kind of adjustable test fixtures of Zhang Jianxun:China,
CN102494943A.2012-06-13. with [2] Qin Qinghua；Zhang Jianxun；Hao Wenqian；Guo Yirong；Wang Tiejun one kind is adjustable
Multi-function experimental grip device:China, the slamming load measurement apparatus described in CN104729912A.2015-06-24. are mainly
Refer to measuring system aspect, it is different from the present invention；[3] He Yuting；Shao Qing；Cui Ronghong；An Tao；5 dawns；Open and rise stiffened panel structures
It is compressed axially stability test fixture and method:China, CN103293056A.2013-09-11. [4] Tang Yougang；Zhang Shaoyang；King
Attain chief；A kind of submarine pipeline lateral movement load test devices of Zhang Ruoyu:China, CN104374656A.2015-02-25. [5]
MU Keyes horse is used for the apparatus and method of the load test of test specimen:China, CN104215503A.2014-12-17.
The content of the invention
For problem above, the invention provides a kind of moving mass experimental rig for simulating many arbitrary boundary conditions and examination
Proved recipe method, the translational speed of moving mass is adjusted by motor, and adjust movement by the counterweight frame in single-wheel moving cart
Quality, the simulation of various boundary is carried out by the bolt of boundary.Its simple structure, it is easy to operate, manufacture operating cost
Rationally, the moving mass experiment of many arbitrary boundary conditions can be carried out in laboratory.
To achieve these goals, the technical solution adopted by the present invention is as follows：
A kind of moving mass experimental rig for simulating many arbitrary boundary conditions, including motor, single-wheel moving cart, test specimen
Plate, branch pedestal and pedestal, branch pedestal are fixed on pedestal, and branch pedestal is provided with grip device, and test specimen plate is correspondingly arranged in fixture
On device, single-wheel moving cart is driven by motor and is moved on test specimen plate, and the foil gauge that test specimen plate is provided with test is passed
Sensor.
Furthermore, the branch pedestal includes branch pedestal one and branch pedestal two, and pedestal includes pedestal one and pedestal two, branch
Pedestal one is screwed on pedestal one, and branch pedestal two-way is crossed screw and is fixed on pedestal two, branch pedestal one and branch pedestal
Grip device is respectively equipped with two, test specimen plate two ends are individually fixed on the grip device on branch pedestal one and branch pedestal two, electricity
Motivation is fixed on pedestal two.
Furthermore, the grip device include rotating shaft, fixed plate, stretch out plate and upper fixture, fixed plate with stretch out plate
Rotating shaft both sides are respectively arranged on, test specimen plate is screwed located at stretching out between plate and upper fixture, and upper fixture is provided with can basis
Test specimen plate different in width and multiple screws for adjusting, fixed plate are provided with a convertible freely-supported and clamped screw.
Furthermore, the pedestal is used and is welded into U-shape structure setting by channel-section steel, is provided between pedestal one and pedestal two
Roll adjustment crossbeam, roll adjustment crossbeam one end is provided with screw, and the other end is provided with hole slot long, and roll adjustment crossbeam one end is through at screw and consolidates by screw
Due on pedestal one, the roll adjustment crossbeam other end is through at hole slot long and is fixed on pedestal two by screw.
Furthermore, the motor is moved by chain-driving single-wheel moving cart on test specimen plate, single-wheel movement
Dolly includes foreign steamer and wheel shaft, and bearing is provided between foreign steamer and wheel shaft, and foreign steamer is respectively arranged at two ends with gear, and chain is placed on gear
On, foreign steamer is correspondingly arranged on test specimen plate, and wheel shaft is connected with the counterweight frame of adjustable quality by frame band correspondence.
Furthermore, the wheel shaft is respectively arranged at two ends with groove, and frame band upper end is correspondingly arranged in groove, and frame band lower end is consolidated
Surely it is connected to counterweight frame.
A kind of test method of the moving mass experimental rig for simulating many arbitrary boundary conditions, it is characterised in that including with
Lower step：
Step one, experimental rig is installed after terminating, the border motif that regulation experimental rig is in, when fixed plate passes through bolt
It is fixedly connected on when on pedestal, is clamped border, fixed plate and when contacting of pedestal are disconnected when bolt is totally released, is border letter
Branch, other border motifs can be realized when half releasing orientation of bolt；
Step 2, starts motor, and motor is driven single-wheel moving cart to be moved on test specimen plate, sensed by foil gauge
Device collection test specimen plate is in the test data of different boundary form；
Step 3, the translational speed of single-wheel moving cart, repeat step two, by foil gauge are driven by adjusting motor
Sensor gathers the test data of friction speed；
Step 4, by changing a yard quality of knocking for counterweight inframe, repeat step two gathers different by strain-ga(u)ge transducer
The test data of quality；
Step 5, by changing the test specimen plate of different in width, repeat step two gathers different width by strain-ga(u)ge transducer
Spend the test data of test specimen plate；
Step 6, by changing the test specimen plate of different length, repeat step two gathers different length by strain-ga(u)ge transducer
Spend the test data of test specimen plate；
Step 7, by the data obtained, so as to realize the mobile load test data of different boundary form.
Beneficial effect of the present invention：
1. simple structure of the present invention, easy to operate, and manufacture operating cost rationally, can in the lab move quality
The bridge response to forced vibration of lower plate structure；
2. whole moving mass process of the test realizes the quantitative control of translational speed；
3. the quantitative change of moving mass is realized by the counterbalance mass on condition counterweight frame；
4. lumped mass experiment is moved under realizing laboratory condition by the design of single-wheel moving cart；
5., by the change connected by fixing bolt between the fixed plate and pedestal in clamp shaft, simple boundary bar is realized
The replacing of part and fixed-end boundary condition, fixing bolt realizes freely-supported when unclamping, gim peg is fixed and realizes that border is clamped, fixing bolt
Half releasing orientation realizes other boundary regimes；
6. the mobile matter of different in width test specimen plate can be realized by the fixation for stretching out multiple bolts on plate in clamp shaft
Amount experiment；
7. the distance between two pedestals is adjusted by the hole slot long on roll adjustment crossbeam, it is possible to achieve the examination of different length test specimen plate
Test.
Brief description of the drawings
Fig. 1 is clamped test structure figure of the invention；
Fig. 2 is freely-supported test structure figure of the invention；
Fig. 3 is bearing pier structure figure of the invention；
Fig. 4 is single-wheel moving cart structure chart of the invention；
Fig. 5 is single-wheel moving cart sectional view of the invention.
1. motor；2. chain；3. single-wheel moving cart；4. test specimen plate；5. a pedestal；50. pedestals one；51. bearings
Pier two；6. rotating shaft；7. plate is stretched out；8. fixed plate；9. pedestal；90. pedestals one；91. pedestals two；10. upper fixture；11. roll adjustments are horizontal
Beam；110. hole slots long；12. counterweight frames；13. gears；14. frame bands；15. foreign steamers；16. wheel shafts；160. grooves；17. bearings.
Specific embodiment
Technical scheme is illustrated with embodiment below in conjunction with the accompanying drawings.
As shown in Figures 1 to 5, a kind of moving mass experimental rig for simulating many arbitrary boundary conditions of the present invention, bag
Motor 1, single-wheel moving cart 3, test specimen plate 4, branch pedestal 5 and pedestal 9 are included, branch pedestal 5 is fixed on pedestal 9, on branch pedestal 5
Grip device is provided with, test specimen plate 4 is correspondingly arranged on grip device, single-wheel moving cart 3 is driven in test specimen plate by motor 1
Moved on 4, test specimen plate 4 is provided with the strain-ga(u)ge transducer of test.The above constitutes basic structure of the present invention.
The present invention is using such structure setting, its operation principle：Using pedestal 9 as the fixed support of experimental rig,
Branch pedestal 5 is fixed with pedestal, grip device is provided with branch pedestal 5, test specimen plate 4, test specimen plate 4 are fixed with grip device
On be correspondingly provided with single-wheel moving cart 3 and strain-ga(u)ge transducer, then single-wheel moving cart 3 is driven in test specimen plate 4 by motor 1
Upper movement, then by strain-ga(u)ge transducer gathered data, so as to realize that moving mass is tested.Its simple structure, it is easy to operate, can
Carried out with laboratory.
More specifically, the branch pedestal 5 includes branch pedestal 1 and branch pedestal 2 51, pedestal 9 include pedestal 1 with
Pedestal 2 91, branch pedestal 1 is screwed on pedestal 1, and branch pedestal 2 51 is screwed in pedestal 2 91
On, be respectively equipped with grip device on branch pedestal 1 and branch pedestal 2 51, the two ends of test specimen plate 4 be individually fixed in branch pedestal 1 with
On grip device on branch pedestal 2 51, motor 1 is fixed on pedestal 2 91.Using such structure setting, branch pedestal one
50 with branch pedestal 2 51 on be individually fixed on pedestal 1 and pedestal 2 91, and on branch pedestal 1 and branch pedestal 2 51 point
Grip device is not provided with, and the two ends of test specimen plate 4 are individually fixed on the grip device on branch pedestal 1 and branch pedestal 2 51, realize
Simulate the effect of bridge structure.
More specifically, the grip device includes rotating shaft 6, fixed plate 7, stretches out plate 8 and upper fixture 10, fixed plate 7 with
Stretch out plate 8 and be respectively arranged on the both sides of rotating shaft 6, test specimen plate 4 is screwed to be located at and stretches out between plate 8 and upper fixture 10, upper fixture
10 are provided with the multiple screws that can be adjusted according to the different in width of test specimen plate 4, and fixed plate 7 is provided with a convertible freely-supported and consolidates
The screw of branch.It is clamped border when fixed plate 7 is bolted to connection on pedestal 9 when using such structure setting,
Fixed plate 7 and when contacting of pedestal 9 are disconnected when bolt is totally released, is border freely-supported, can realized when half releasing orientation of bolt
Other border motifs.Furthermore it is possible to the multiple screws passed through in upper fixture 10 can be conveniently replaceable the test specimen plate 4 of different in width,
It uses the row of multiple screws one to set, such as：The width of current test specimen plate 4 is 5cm, is separated by by two in upper fixture 10
The screw of 4cm can be fixed, if to change the test specimen plate 4 that width is 10cm, that just changes corresponding to the width of test specimen plate 4
Two screws be easy to be fixed.
More specifically, the pedestal 9 is set using being welded into U-shape structure by channel-section steel, pedestal 1 and pedestal 2 91 it
Between be provided with roll adjustment crossbeam 11, the one end of roll adjustment crossbeam 11 is provided with screw, and the other end is provided with hole slot long 110, and the one end of roll adjustment crossbeam 11 leads to
Cross screw and be through at screw and be fixed on pedestal 1, the other end of roll adjustment crossbeam 11 is through at hole slot long 110 and is fixed on base by screw
On seat 2 91.Using such structure setting, the effect of roll adjustment crossbeam 11 is to be adjusted pedestal according to the length of test specimen plate 4
The distance between one 90 and pedestal 2 91, are adjusted by the bolt on hole slot long 110 need to be only unclamped during regulation, then revolve again
Consolidation is now conveniently replaceable the test specimen plate 4 of different length.
More specifically, the motor 1 drives single-wheel moving cart 3 to be moved on test specimen plate 4 by chain 2, single-wheel
Moving cart 3 includes foreign steamer 15 and wheel shaft 16, and bearing 17 is provided between foreign steamer 15 and wheel shaft 16, and foreign steamer 15 is respectively arranged at two ends with tooth
Wheel 13, chain 2 is placed on gear 13, and foreign steamer 15 is correspondingly arranged on test specimen plate 4, and wheel shaft 16 is connected with adjustable by the correspondence of frame band 14
Save the counterweight frame 12 of quality.Wheel shaft 16 is respectively arranged at two ends with groove 160, and 14 upper ends of frame band are correspondingly arranged in groove 160, frame band 14
Lower end is fixedly connected on counterweight frame 12.Using such structure setting, motor 1 pulls single-wheel moving cart 3 by chain 2
Gear 13 realizes the effect for pulling single-wheel moving cart 3 move on test specimen plate 4, bearing 17 play foreign steamer 15 rotation when
Waiting wheel shaft 16 will not and then turn, and the counterweight for being conveniently replaceable different quality is played by the counterweight frame 12 that can adjust quality.
A kind of test method of the moving mass experimental rig for simulating many arbitrary boundary conditions, comprises the following steps：
Step one, experimental rig is installed after terminating, the border motif that regulation experimental rig is in, when fixed plate 7 passes through spiral shell
Bolt is fixedly connected on when on pedestal 9, is clamped border, and fixed plate 7 and when contacting of pedestal 9 are disconnected when bolt is totally released, and is
Border freely-supported, other border motifs can be realized when half releasing orientation of bolt；
Step 2, starts motor 1, and motor 1 drives single-wheel moving cart 3 to be moved on test specimen plate 4, by foil gauge
Test data of the sensor collection test specimen plate 4 in different boundary form；
Step 3, the translational speed of single-wheel moving cart 3, repeat step two, by strain are driven by adjusting motor 1
Piece sensor gathers the test data of friction speed；
Step 4, by changing a yard quality of knocking for counterweight inframe, repeat step two gathers different by strain-ga(u)ge transducer
The test data of quality；
Step 5, by changing the test specimen plate 4 of different in width, repeat step two gathers different by strain-ga(u)ge transducer
The test data of width test specimen plate 4；
Step 6, by changing the test specimen plate 4 of different length, repeat step two gathers different by strain-ga(u)ge transducer
The test data of length test specimen plate 4；
Step 7, by the data obtained, so as to realize the mobile load test data of different boundary form.
Embodiments of the invention are described above in association with accompanying drawing, but the invention is not limited in above-mentioned specific
Implementation method, above-mentioned specific embodiment is only schematical, rather than restricted, one of ordinary skill in the art
Under enlightenment of the invention, in the case of present inventive concept and scope of the claimed protection is not departed from, can also make a lot
Form, these are belonged within protection scope of the present invention.
Claims (6)
1. a kind of moving mass experimental rig for simulating many arbitrary boundary conditions, it is characterised in that including motor (1), single-wheel
Moving cart (3), test specimen plate (4), branch pedestal (5) and pedestal (9), the branch pedestal (5) are fixed on pedestal (9), the branch
Pedestal (5) is provided with grip device, and the test specimen plate (4) is correspondingly arranged on grip device, and the single-wheel moving cart (3) is led to
Cross motor (1) drive to be moved on test specimen plate (4), the test specimen plate (4) is provided with the strain-ga(u)ge transducer of test.
2. a kind of moving mass experimental rig for simulating many arbitrary boundary conditions according to claim 1, it is characterised in that
The branch pedestal (5) includes branch pedestal one (50) and branch pedestal two (51), and the pedestal (9) includes pedestal one (90) and pedestal two
(91), the branch pedestal one (50) is screwed on pedestal one (90), and the branch pedestal two (51) is screwed
In on pedestal two (91), grip device, the test specimen plate (4) are respectively equipped with the branch pedestal one (50) and branch pedestal two (51)
Two ends are individually fixed on the grip device on branch pedestal one (50) and branch pedestal two (51), and the motor (1) is fixed on base
On seat two (91).
3. a kind of moving mass experimental rig for simulating many arbitrary boundary conditions according to claim 2, it is characterised in that
The grip device includes rotating shaft (6), fixed plate (7), stretches out plate (8) and upper fixture (10), the fixed plate (7) with stretch out plate
(8) be respectively arranged on rotating shaft (6) both sides, the test specimen plate (4) be screwed located at stretch out plate (8) and upper fixture (10) it
Between, the upper fixture (10) is provided with the multiple screws that can be adjusted according to test specimen plate (4) different in width, the fixed plate (7)
It is provided with a convertible freely-supported and clamped screw.
4. a kind of moving mass experimental rig for simulating many arbitrary boundary conditions according to claim 2, it is characterised in that
The pedestal (9) is welded into U-shape structure setting using by channel-section steel, and roll adjustment is provided between the pedestal one (90) and pedestal two (91)
Crossbeam (11), described roll adjustment crossbeam (11) one end is provided with screw, and the other end is provided with hole slot long (110), the roll adjustment crossbeam (11)
One end is through at screw and is fixed on pedestal one (90) by screw, and roll adjustment crossbeam (11) other end is through at elongated hole by screw
Groove (110) is fixed on pedestal two (91).
5. a kind of moving mass experimental rig for simulating many arbitrary boundary conditions according to claim 1, it is characterised in that
The motor (1) drives single-wheel moving cart (3) to be moved on test specimen plate (4) by chain (2), the single-wheel moving cart
(3) including foreign steamer (15) and wheel shaft (16), bearing (17), the foreign steamer (15) are provided between the foreign steamer (15) and wheel shaft (16)
Gear (13) is respectively arranged at two ends with, the chain (2) is placed on gear (13), and the foreign steamer (15) is correspondingly arranged at test specimen plate (4)
On, the wheel shaft (16) is connected with the counterweight frame (12) of adjustable quality by frame band (14) correspondence.
6. a kind of moving mass experimental rig for simulating many arbitrary boundary conditions according to claim 5, it is characterised in that
The wheel shaft (16) is respectively arranged at two ends with groove (160), and frame band (14) upper end is correspondingly arranged in groove (160), the frame
Band (14) lower end is fixedly connected on counterweight frame (12).
A kind of test method of the moving mass experimental rig for simulating many arbitrary boundary conditions, it is characterised in that including following step
Suddenly：
Step one, experimental rig is installed after terminating, the border motif that regulation experimental rig is in, when fixed plate (7) is by bolt
It is fixedly connected on when on pedestal (9), is clamped border, when the contact for being totally released bolt disconnection fixed plate (7) and pedestal (9)
When, it is border freely-supported, can realize other border motifs when half releasing orientation of bolt；
Step 2, starts motor (1), and motor (1) drives single-wheel moving cart (3) to be moved on test specimen plate (4), by answering
Become the piece sensor collection test data of test specimen plate (4) in different boundary form；
Step 3, the translational speed of single-wheel moving cart (3), repeat step two, by strain are driven by adjusting motor (1)
Piece sensor gathers the test data of friction speed；
Step 4, by changing a yard quality of knocking for counterweight inframe, repeat step two gathers different quality by strain-ga(u)ge transducer
Test data；
Step 5, by changing the test specimen plate (4) of different in width, repeat step two gathers different width by strain-ga(u)ge transducer
The test data of degree test specimen plate (4)；
Step 6, by changing the test specimen plate (4) of different length, repeat step two gathers different length by strain-ga(u)ge transducer
The test data of degree test specimen plate (4)；
Step 7, by the data obtained, so as to realize the mobile load test data of different boundary form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611236478.XA CN106813885B (en) | 2016-12-28 | 2016-12-28 | A kind of the moving mass experimental rig and test method of a variety of boundary conditions of analog |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611236478.XA CN106813885B (en) | 2016-12-28 | 2016-12-28 | A kind of the moving mass experimental rig and test method of a variety of boundary conditions of analog |
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| Publication Number | Publication Date |
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| CN106813885A true CN106813885A (en) | 2017-06-09 |
| CN106813885B CN106813885B (en) | 2019-04-26 |
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| CN109001559A (en) * | 2018-06-19 | 2018-12-14 | 西北工业大学 | It is sintered the efficient energizing test device of nano silver node electricity system damage |
| CN109752159A (en) * | 2019-01-22 | 2019-05-14 | 武汉理工大学 | A kind of plate-girder dynamic loading response test device |
| CN109990963A (en) * | 2019-03-15 | 2019-07-09 | 广州大学 | A kind of self-vibration characteristic test platform of structural member |
| CN110160722A (en) * | 2019-06-09 | 2019-08-23 | 西北工业大学 | A kind of vibrational structure infinite boundary simulator |
| CN110501239A (en) * | 2019-08-14 | 2019-11-26 | 太原理工大学 | The realization device of circular cross-section test specimen fixed boundary condition in drop impact device |
| CN114088322A (en) * | 2021-11-18 | 2022-02-25 | 天元建设集团有限公司 | Experimental platform for simulating seismic force response numerical value of bridge connecting assembly |
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| CN109001559A (en) * | 2018-06-19 | 2018-12-14 | 西北工业大学 | It is sintered the efficient energizing test device of nano silver node electricity system damage |
| CN109752159A (en) * | 2019-01-22 | 2019-05-14 | 武汉理工大学 | A kind of plate-girder dynamic loading response test device |
| CN109990963A (en) * | 2019-03-15 | 2019-07-09 | 广州大学 | A kind of self-vibration characteristic test platform of structural member |
| CN110160722A (en) * | 2019-06-09 | 2019-08-23 | 西北工业大学 | A kind of vibrational structure infinite boundary simulator |
| CN110501239A (en) * | 2019-08-14 | 2019-11-26 | 太原理工大学 | The realization device of circular cross-section test specimen fixed boundary condition in drop impact device |
| CN114088322A (en) * | 2021-11-18 | 2022-02-25 | 天元建设集团有限公司 | Experimental platform for simulating seismic force response numerical value of bridge connecting assembly |
| CN114088322B (en) * | 2021-11-18 | 2023-04-28 | 天元建设集团有限公司 | Experimental platform for seismic force response numerical simulation of bridge connecting assembly |
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