CN106768751B - A kind of vibration test is with gasbag-type vertically to pressure self-balancing auxiliary support apparatus - Google Patents
A kind of vibration test is with gasbag-type vertically to pressure self-balancing auxiliary support apparatus Download PDFInfo
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- CN106768751B CN106768751B CN201611025392.2A CN201611025392A CN106768751B CN 106768751 B CN106768751 B CN 106768751B CN 201611025392 A CN201611025392 A CN 201611025392A CN 106768751 B CN106768751 B CN 106768751B
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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
Abstract
The invention discloses a kind of vibration test with gasbag-type vertically to pressure self-balancing auxiliary support apparatus, including fixed bracket, gag lever post, fixed mesa, support slipper, vertically to vibration guide wheel, wheel bracket, vertically to support air bag and corresponding gas circuit and pipe fitting.It is connect on the downside of fixed bracket with shake table bracket, it is excessive that gag lever post limits vibration table displacement, fixed mesa upper surface is connect by connecting bolt with vibration tool, fixed mesa lower end surface is bolted to connection with shake table mounting hole, support slipper for vertically to vibration guide wheel sliding support face is provided, vertically to the laterally offset or torsion of vibration guide wheel limitation fixed mesa, wheel bracket is vertically to provide a supporting role to vibration guide wheel, vertically it is mounted on the downside of fixed mesa to support air bag, totally four, it is arranged in four corners.The present invention can meet the test for having particular/special requirement to test boundary and environment simultaneously, and the bearing capacity for meeting different tests product demand is provided for fixed mesa.
Description
Technical field
The present invention relates to the application fields vertically to vibration test to items external force caused by blance test product, specifically
It is a kind of vibration test gasbag-type vertically to pressure self-balancing auxiliary support apparatus.
Background technique
During carrying out vertically to vibration test, the weight of test products and vibration tool is born by shake table.Vibration
Platform is capable of providing certain static force and resistance to tipping moment according to vibration force size shake table itself, but in reality in design
During the vibration test on border, the case where frequently encountering beyond vibratory equipment self-ability:
(1) bearing capacity is limited: the static load ability of vibratory equipment is generally related according to the electromagnetic force of Design of vibration table, generally
No more than 1/6 or so of shake table maximum thrust, if but test products generate pressure it is excessive, be more than shake table bearing capacity pole
Limit, shake table will receive serious damage；
(2) resistance to tipping moment is limited: test products inevitably will appear side into vibration processes vertical with moving-coil
To shaking, according to test products weight size and the difference of center, baptism is proposed to shake table equipment.Vibration at present
Dynamic equipment vertically to resistance to tipping moment mainly provided by the intracorporal lower tumbler of platform, it is general less than normal, if being generated in vibration processes
Tilting moment crosses conference and causes seriously to damage to vibratory equipment.
(3) torsional moment is limited: with described in (2), during actual vibration, shake table equipment strictly avoids trying at present
It tests product and generates twisting resistance during the installation process.
(4) mounting surface limited size: the mounting surface of shake table itself is limited by moving-coil size, is frequently encountered test and is produced
Product volume is excessive, the too small situation of vibration table, this increases huge difficulty, and tooling rigidity to the design of vibration tool
Must be very poor, to generate malicious influences to vibration test result.
Since above 4 points limit, carries out in the test products for having particular/special requirement to certain boundary conditions and vertically tried to vibration
When testing, the ability of shake table itself in some aspects will be unable to meet test requirements document.
Therefore, industry needs to design the vibration test air bag that a kind of bearing capacity is big, resistance to tipping moment and torsional moment are strong
Formula vertically to pressure self-balancing auxiliary support apparatus, achievees the purpose that save the cost, improves efficiency, ensures to test safety.
Summary of the invention
For solution above-mentioned technical problem, the present invention provides a kind of bearing capacities big, resistance to tipping moment and torsional moment
Strong vibration test, vertically to pressure self-balancing auxiliary support apparatus, can pass through the air pressure in adjusting support air bag with gasbag-type
Size adjusts bearing capacity, and carrys out toppling for blance test product by the vertical of fixed mesa surrounding to vibration guide wheel and power and turn round
Turn power, simultaneously for the biggish test products of volume, mounting surface can be expanded by expanding the area of fixed mesa.
The purpose of the present invention is achieved through the following technical solutions: a kind of vibration test gasbag-type is vertically certainly flat to pressure
Weigh auxiliary support apparatus, including be connected and fixed bracket, gag lever post, fixed mesa, supporting block, vertically to vibration guide wheel, guide wheel branch
Frame, vertically to support air bag and corresponding gas circuit and pipe fitting；
The support bracket fastened face A1 is the mounting surface connecting with shake table bracket, the support bracket fastened face A2 be with it is vertical to
There is a threaded hole in the mounting surface of support air bag connection, the support bracket fastened face A3, and the threaded hole is used to carry out with gag lever post rigid
Property connection；The upper surface C1 of the fixed mesa shares 16 26 counter sinks of Φ, for by the table top of fixed mesa and shake table
It is attached；The face C1 of fixed mesa be equipped with 8 Φ 18 counter sink, for the vertical screw thread on the face support air bag G2
Hole is spirally connected；The face C1 of fixed mesa is equipped with the threaded hole of 18 M12, for being attached fastening with vibration tool；
The face C2 of fixed mesa is directly in contact with the table top of shake table；The face C3 of fixed mesa is directly with vertical to the face support air bag G2
It is in contact；
The supporting block is used to vertically provide sliding to vibration guide wheel；
The hole E1 vertically on vibration guide wheel is used to for guide wheel and wheel bracket being fixedly mounted；
The wheel bracket is made of top board and fixed block；The through-hole of 2 Φ 10.3 on top board be used for it is vertical
It is fastenedly connected to vibration guide wheel；2 " a word hole " through-holes on top board are for fastening top board and fixed block
Connection, screw pass through the screw hole of 4 M10 on " a word hole " through-hole and fixed block；There are 2 Φ 10.3 on fixed block
Through-hole, for adjusting the front-rear position of top board；There are the through-holes of 4 Φ 14 on fixed block, can be by fixed block and fixation
Bracket is rigidly spirally connected；
It is described vertically to be connect to the face G1 of support air bag with fixed bracket；Vertically to the face G2 of support air bag and fixed mesa
The face C3 on 8 Φ 12 through-hole connection, fastening；
Corresponding gas circuit shake table automatic centering function can be switched to pipe fitting it is vertical in support air bag,
The automatic inflatable of the vertically pressure into support air bag is realized by shake table automatic centering function.
Preferably, the corresponding gas circuit is connected with pipe fitting with vertical to support air bag, and required gas is provided for it
Body pressure.
Preferably, the fixation bracket is equipped with for installing the vertically position to support air bag.
Preferably, the fixation bracket can effectively increase the static force of shake table, and the static force of receiving is dispersed
Onto shake table bracket.
Preferably, described vertical to provide lateral equilibrant force to vibration guide wheel for fixed mesa.
Preferably, it is described it is vertical be mounted on the downside of fixed mesa to support air bag, totally four, be arranged in quadrangle
Place, which can generate vertical to pressure size progress type selecting according to test products, when test products are installed to admittedly
Pass through air pump to four bladders after determining table top, to balance test products to vertically to pressure self-balancing Auxiliary support dress
Set the pressure of table top.
Compared with prior art, the invention has the following advantages that
Can meet simultaneously has the test of particular/special requirement to test boundary and environment, meets test products to bearing capacity, anti-
The rigors of tilting moment, torsional moment and mounting table area.Simultaneously four can be adjusted by the pressure gauge in gas circuit
Pressure in a support air bag, and corresponding support force is calculated, meet different tests product to the different demands of bearing capacity.From
And meet the test products for having particular/special requirement, it is ensured that the initial position of test products does not change, and saves and tested
Human cost in journey, the purpose for improving test efficiency, ensuring to test safety.
Detailed description of the invention
Fig. 1 is a kind of vibration test gasbag-type of the embodiment of the present invention vertically to the knot of pressure self-balancing auxiliary support apparatus
Structure schematic diagram.
Fig. 2 is support bracket fastened structural schematic diagram in the embodiment of the present invention.
Fig. 3 is the structural schematic diagram of gag lever post in the embodiment of the present invention.
Fig. 4 is the structural schematic diagram of fixed mesa in the embodiment of the present invention.
Fig. 5 is the structural schematic diagram at Fig. 4 reverse side visual angle.
Fig. 6 is the structural schematic diagram of supporting block in the embodiment of the present invention.
Fig. 7 is in the embodiment of the present invention vertically to the structural schematic diagram of vibration guide wheel.
Fig. 8 is the structural schematic diagram of the top board E1 of wheel bracket in the embodiment of the present invention.
Fig. 9 is the structural schematic diagram of the fixed block E2 of wheel bracket in the embodiment of the present invention.
Figure 10 is in the embodiment of the present invention vertically to the structural schematic diagram of support air bag lower end surface.
Figure 11 is in the embodiment of the present invention vertically to the structural schematic diagram of support air bag upper surface.
Figure 12 is the structural schematic diagram of a specific embodiment of the embodiment of the present invention.
Specific embodiment
The present invention is described in detail combined with specific embodiments below.Following embodiment will be helpful to the technology of this field
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill of this field
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention
Protection scope.
It is vertically assisted to pressure self-balancing as shown in Figure 1, the embodiment of the invention provides a kind of vibration tests with gasbag-type
Support device, including be connected and fixed bracket 1, gag lever post 2, fixed mesa 3, supporting block 4, vertically to vibration guide wheel 5, wheel bracket
6, vertically to support air bag 7 and corresponding gas circuit and pipe fitting.
As shown in Fig. 2, the frame structure height of fixed bracket 1, width are determined by mating 9 stage body size of shake table；Gu
The face A1 of fixed rack 1 is the mounting surface connecting with 9 bracket of shake table, thereon the uniformly distributed through-hole of 4 Φ 21, can be 9 with shake table
The threaded hole at four angles is spirally connected on frame；The face A2 of fixed bracket 1 be with the vertical mounting surface being connect to support air bag 7,
The through-hole of upper 8 uniformly distributed Φ 8.5 and the through-hole of 4 Φ 18 are vertically the wherein Φ to the installation site of support air bag 7
8.5 through-hole is attached by bolt with vertical M8 threaded hole corresponding on the face support air bag G1, and reach is according to A2
Panel thickness determines that the through-hole of 4 Φ 18 is the hole location that gas circuit is reserved with the vertical gas-tpe fitting on the face support air bag G1；Fixed branch
Intermediate space is the space of fixed mesa 3 on the face A2 of frame 1, between fixed mesa 3 and fixed bracket 1 only by it is vertical to
Support air bag 7 keeps connection；Respectively there is the tapped through hole of 1 group of 4 × M12 in the centre of the face A2 four edges on fixed bracket 1, and the screw thread is logical
Hole is mainly used for and wheel bracket is fixedly mounted；Respectively there are the threaded hole of a M8, the screw thread on 4 faces A3 on fixed bracket 1
The main function in hole is to carry out rigidity with gag lever post to be spirally connected.
As shown in figure 3, respectively there is the through-hole of a Φ 8.5 at the face the B1 both ends of gag lever post 2, bolt passes through the hole and fixed bracket
1 face A3 upper screwed hole is attached, and gag lever post 2 is mainly used for limiting the moving distance of fixed mesa, prevents its displacement excessive；
It is pasted with one piece of isometric wide valve rubber on the face B2 of gag lever post 2, plays the role of crusherbull zone.
As shown in fig. 4-5, fixed mesa 3 is formed using casting magnesium aluminum alloy；The upper surface C1 of fixed mesa 3 shares 16
A 26 counter sink C1-1 of Φ, for fixed mesa 3 and 9 moving-coil of shake table to be attached；Four angles on the face C1 of fixed mesa 3
Counter sink C1-2 equipped with 8 Φ 18, for being spirally connected with corresponding threaded hole on the vertical face G2 to support air bag 7；
The threaded hole C1-3 of 18 M12 is equipped at the face the C1 center of fixed mesa 3, for being attached fastening, C1-3 with vibration tool
Threaded hole distribution diameter according to vibration tool size it needs to be determined that；The face C2 of fixed mesa 3 directly connects with the table top of shake table 9
Touching, 16 18 through-holes of Φ are communicated with the counter sink C1-1 on the C1 of upper surface thereon；The face C3 of fixed mesa 3 is directly with vertical to branch
The face G2 of support air bag 7 is in contact, and 8 12 through-holes of Φ are communicated with the counter sink C1-2 on the C1 of upper surface thereon.
As shown in fig. 6, supporting block 4 is mainly used for vertically to provide sliding foundation to vibration guide wheel 5, one side is fixed on
Determine 3 side of table top, the other side is contacted with vertical to vibration guide wheel 5.
As shown in fig. 7, itself will be vertically fixedly mounted on wheel bracket 6 to vibration guide wheel 5 by the hole E1 thereon.
As illustrated in figs. 8-9, wheel bracket 6 is made of top board F1 and fixed block F2 two parts；There are 2 on top board F1
The through-hole F1-1 of Φ 10.3, for being fastenedly connected with vertical to vibration guide wheel 5；2 " words being arranged on top board F1
Hole " through-hole F1-2 is mainly used for for top board F1 and the F2-1 on fixed block F2 being fastenedly connected, and screw passes through " a word hole "
The threaded hole F2-1 of M10 on through-hole F1-2 and fixed block F2 is spirally connected；There are the through-hole F2-2 of 2 Φ 10.3 on fixed block F2,
For adjusting the front-rear position of top board F1；There are the through-hole F2-3 of 4 Φ 14 on fixed block F2, by fixed block F2 and can consolidate
1 rigidity of fixed rack is spirally connected.
As shown in figs. 10-11, double-air sac structure vertically is used to support air bag 7, provides and meets the requirements for fixed mesa 3
Bearing capacity, can vertically be selected to the bearing capacity of support air bag according to the demand of test products；Vertically to support gas
The face G1 of capsule 7 is connect with the through-hole A2-1 on the face A2 of fixed bracket 1；Vertically to the face G2 of support air bag 7 and fixed mesa 3
The through-hole of 8 Φ 12 on the face C3 connects fastening, only keeps by vertical to support air bag 7 between fixed mesa 3 and fixed bracket 1
Connection.
The corresponding gas circuit is connected with pipe fitting 8 with vertical to support air bag 7, and required gas pressure is provided for it
Power.
The fixation bracket 1 is equipped with for installing vertically to the position of support air bag 7.
The fixation bracket 1 can effectively increase the static force of shake table 9, and the static force of receiving is distributed to vibration
On platform bracket.
It is described it is vertical to vibration guide wheel 5 be that fixed mesa 3 provides lateral equilibrant force.
It is described it is vertical be mounted on 3 downside of fixed mesa to support air bag 7, totally four, be arranged in four corners, this four
A air bag can generate vertical to pressure size progress type selecting according to test products, when test products are installed to fixed mesa 3
Afterwards by air pump to four bladders, to balance test products to vertically to pressure self-balancing auxiliary support apparatus table top
Pressure.
The specific installation process of this specific implementation is as follows:
Step 1: according to the requirement of overall applicability condition, determine the installation direction of the device, the front and back end of avoiding device with
The front and back end of shake table is inconsistent；
Step 2: connecting pore size distribution, size requirement according to vibration table surface, counter sink on the face C is determined on fixed mesa (3)
The distribution of C1-1, size；
Step 3: according to the distribution of the mounting hole of test products bottom or vibration tool bottom connecting hole, size requirement,
Determine the distribution and size, specification of connection screw thread hole C1-3 on fixed mesa (3) upper surface face C1；
Step 4: according to pressure size generated after test products own wt, pressurising etc. require, calculate determine vertically to
Bearing capacity needed for support air bag (7), to select suitable support air bag；
Step 5: being transformed as needed to shaking table system gas circuit, shake table automatic centering function is existed
Mutually switch between shake table inner balloon and vertical four support air bags (7) to pressure self-balancing auxiliary support apparatus；
Step 6: entire vibration test gasbag-type is assembled as shown in Figure 1 vertically to pressure self-balancing auxiliary support apparatus,
After being docked with shake table, according to testing ground installation environment, before test products are not installed, it is ensured that four groups vertically to vibration guide wheel
(5) close to the clamping force of fixed mesa (3), and system gas circuit is switched to vertically to pressure self-balancing auxiliary support apparatus
In support air bag (7), the vertical to automatic pressure-balancing of pilot system is realized；
It is generated Step 7: vertically constrain simultaneously blance test product to direction of vibration to vibration guide wheel (5) by four groups
Tilting moment and torsional moment, realize vibration test of the special test product under sophisticated testing boundary condition.
This specific implementation can meet the test for having particular/special requirement to test boundary and environment simultaneously, meet test products pair
The rigors of bearing capacity, resistance to tipping moment and torsional moment.Simultaneously by gas circuit adjust after, can by shake table itself oneself
Dynamic alignment function is switched to 4 vertically in support air bag, from the automatic pressure-balancing function of being able to achieve device, meets different examinations
Product is tested to the different demands of bearing capacity.To meet the test products for having particular/special requirement, it is ensured that the initial bit of test products
It sets and does not change, and save the human cost during test, the purpose for improving test efficiency, ensuring to test safety.
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited to above-mentioned
Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow
Ring substantive content of the invention.
Claims (9)
1. a kind of vibration test is with gasbag-type vertically to pressure self-balancing auxiliary support apparatus, which is characterized in that solid including connecting
Fixed rack (1), gag lever post (2), fixed mesa (3), supporting block (4), vertically to vibration guide wheel (5), wheel bracket (6), vertical
To support air bag (7) and corresponding gas circuit and pipe fitting；
The face A1 of the fixed bracket (1) is the mounting surface connecting with shake table bracket, the face A2 of fixed bracket (1) be with it is vertical
There is a threaded hole in the mounting surface connected to support air bag (7), the face A3 of fixed bracket (1), and the threaded hole is used for and limit
Bar (2) is rigidly connected；
The upper surface C1 of the fixed mesa (3) shares 16 26 counter sinks of Φ (C1-1), is used for fixed mesa (3) and vibration
The table top of platform (9) is attached；The face C1 of fixed mesa (3) be equipped with 8 Φ 18 counter sink (C1-2), for it is vertical to
Threaded hole on support air bag (7) face G2 is spirally connected；The face C1 of fixed mesa (3) is equipped with the threaded hole (C1- of 18 M12
3), for being attached fastening with vibration tool；The face C2 of fixed mesa (3) is directly in contact with the table top of shake table (9)；Gu
The face C3 for determining table top (3) is directly in contact with vertical to support air bag (7) face G2；
The supporting block (4) is used to vertically provide sliding to vibration guide wheel (5)；
The vertically hole E1 in vibration guide wheel (5) is used to for guide wheel and wheel bracket (6) being fixedly mounted；
The wheel bracket (6) is made of top board (F1) and fixed block (F 2)；2 Φ's 10.3 on top board (F1) is logical
Hole (F1-1) is used to be fastenedly connected with vertical to vibration guide wheel (5)；2 " a word hole " through-hole (F1- on top board (F1)
2) for top board (F1) and fixed block (F2) to be fastenedly connected, screw passes through " a word hole " through-hole (F1-2) and fixed block
(F2) threaded hole (F2-1) of 4 M10 on is spirally connected；There are the through-hole of 2 Φ 10.3 (F2-2) on fixed block (F2), for adjusting
The front-rear position of whole top board (F1)；There are the through-holes of 4 Φ 14 on fixed block (F2), can be by fixed block (F2) and fixed branch
Frame (1) is rigidly spirally connected；
It is described vertically to be connect to the face G1 of support air bag (7) with fixed bracket (1)；Vertically to the face G2 of support air bag (7) and admittedly
Determine through-hole connection, the fastening of 8 Φ 12 on the face C3 of table top (3)；
Corresponding gas circuit shake table automatic centering function can be switched to pipe fitting it is vertical on support air bag (7),
It is realized by shake table automatic centering function vertically to the automatic inflatable of support air bag (7) interior pressure；
The through-hole (A2-1) of the through-hole of uniformly distributed 8 Φ 8.5 and 4 Φ 18 on the face A2 of the fixed bracket (1), 8 Φ 8.5
Through-hole be bolted with the vertical corresponding threaded hole on support air bag (7) face G1, the through-hole of 4 Φ 18 be gas circuit with
The arrangement hole position of pipe fitting.
2. a kind of vibration test according to claim 1 with gasbag-type vertically to pressure self-balancing auxiliary support apparatus,
It is characterized in that, the face A1 of the fixed bracket (1) is the mounting surface connecting with shake table bracket, and uniformly distributed 4 Φ's 21 is logical thereon
Hole can be spirally connected with the threaded hole of quadrangle on shake table (9) bracket.
3. a kind of vibration test according to claim 1 with gasbag-type vertically to pressure self-balancing auxiliary support apparatus,
It is characterized in that thering is the tapped through hole (A2-2) of 4 groups of M12 on the face A2 of the fixed bracket (1), which is used for and guide wheel
Bracket (6) carries out rigidly fixing connection.
4. a kind of vibration test according to claim 1 with gasbag-type vertically to pressure self-balancing auxiliary support apparatus,
It is characterized in that, there is threaded hole in the face A3 of the fixed bracket (1), and the threaded hole with gag lever post (2) for being rigidly connected.
5. a kind of vibration test according to claim 4 with gasbag-type vertically to pressure self-balancing auxiliary support apparatus,
It is characterized in that, the through-hole on the face B1 of the gag lever post (2) is attached with the threaded hole on fixed bracket (1) face A3, is used for
The moving distance for limiting fixed mesa (3) prevents fixed mesa (3) displacement excessive.
6. a kind of vibration test according to claim 1 with gasbag-type vertically to pressure self-balancing auxiliary support apparatus,
It is characterized in that, one piece of isometric wide valve rubber is adhesive on the face B2 of the gag lever post (2), plays buffer function.
7. a kind of vibration test according to claim 1 with gasbag-type vertically to pressure self-balancing auxiliary support apparatus,
Be characterized in that, the face C2 of the fixed mesa (3) is directly in contact with the table top of shake table (9), thereon 16 18 through-holes of Φ with
Through-hole (C1-1) on the C1 of upper surface communicates；The face C3 of fixed mesa (3) directly connects with vertical to support air bag (7) face G2
Touching, 8 12 through-holes of Φ are communicated with the through-hole (C1-2) on the C1 of upper surface thereon.
8. a kind of vibration test according to claim 1 with gasbag-type vertically to pressure self-balancing auxiliary support apparatus,
It is characterized in that, the fixed mesa (3) is formed using casting magnesium aluminum alloy, described vertically to use double bolloon to support air bag (7)
Structure is mounted on the downside of fixed mesa (3), and quantity is four, is arranged in four corners.
9. a kind of vibration test according to claim 3 with gasbag-type vertically to pressure self-balancing auxiliary support apparatus,
It is characterized in that, it is described vertically to be connect to the face G1 of support air bag (7) with the through-hole (A2-1) on the face A2 of fixed bracket (1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611025392.2A CN106768751B (en) | 2016-11-18 | 2016-11-18 | A kind of vibration test is with gasbag-type vertically to pressure self-balancing auxiliary support apparatus |
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| CN201611025392.2A CN106768751B (en) | 2016-11-18 | 2016-11-18 | A kind of vibration test is with gasbag-type vertically to pressure self-balancing auxiliary support apparatus |
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| CN111426442A (en) * | 2019-01-09 | 2020-07-17 | 金顿仪器科技（昆山）有限公司 | Bounce test device |
| CN110057523A (en) * | 2019-05-27 | 2019-07-26 | 中国工程物理研究院总体工程研究所 | A kind of more of broadband simultaneously pushes away pilot system |
| CN111207899A (en) * | 2020-03-11 | 2020-05-29 | 上海航天精密机械研究所 | Multi-degree-of-freedom decoupling ball head automatic balancing device |
| CN112729738A (en) * | 2020-12-29 | 2021-04-30 | 中国科学院地质与地球物理研究所 | Double-table vibration test device |
| CN113465852A (en) * | 2021-07-05 | 2021-10-01 | 苏州苏试试验集团股份有限公司 | Dynamic centering method of vibration system under vibration condition |
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| CN104458179A (en) * | 2014-11-20 | 2015-03-25 | 北京卫星环境工程研究所 | Four-table shunt excitation perpendicular vibration test system with expansion table board |
| CN105222972A (en) * | 2015-10-19 | 2016-01-06 | 苏州苏试试验仪器股份有限公司 | Removable syndeton between shaking table susceptor body and ground |
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