CN219161606U

CN219161606U - Vibration test device for performance test of particle damper

Info

Publication number: CN219161606U
Application number: CN202223365843.0U
Authority: CN
Inventors: 陈旭东; 偶伟冰
Original assignee: Suzhou University of Science and Technology
Current assignee: Suzhou University of Science and Technology
Priority date: 2022-12-15
Filing date: 2022-12-15
Publication date: 2023-06-09
Anticipated expiration: 2032-12-15

Abstract

The utility model provides a vibration test device for testing the performance of a particle damper, which comprises a vibration table, wherein a connecting plate is arranged on the vibration table, a bracket is arranged on the connecting plate, and the bracket consists of a cross beam, two telescopic rods and two clamping blocks; the cross beam is arranged on the two telescopic rods, and the clamping blocks are arranged on the cross beam; the particle damper is arranged between the two clamping blocks, two clamping pieces are welded at two ends of the shell of the particle damper respectively, and the clamping pieces are connected with the corresponding clamping blocks through bolts; the beneficial technical effects of the utility model are as follows: the utility model provides a vibration test device for particle damper performance test, this scheme can improve particle damper gesture adjustment's flexibility by a wide margin to provide various test conditions for vibration test.

Description

Vibration test device for performance test of particle damper

Technical Field

The utility model relates to a test device, in particular to a vibration test device for testing the performance of a particle damper.

Background

The particle damper is an advanced damping device, and when the particle damper is applied, the particle damper can be constructed by filling tiny particles in certain limited closed spaces of a main body structure, and vibration energy consumption is realized by collision and friction among the particles.

At present, the energy absorption and vibration reduction mechanism of the particle damper is still lack of related researches, and particularly the relevance between the particle damper and vibration reduction performance when the particle damper is arranged at different positions on the structure is not clear. The prior art is limited by a test device when researching the vibration damping performance of the particle damper, the particle damper can be installed on the vibrating table only through the fixed support, the fixed support has no adjustability, the position of the particle damper cannot be flexibly adjusted, meanwhile, the relative position of the fixed support and the vibrating table cannot be flexibly adjusted, and the position and the gesture of the particle damper are required to be adjusted in the test process very troublesome.

Disclosure of Invention

Aiming at the problems in the background technology, the utility model provides a vibration test device for testing the performance of a particle damper, which comprises a vibration table, and the improvement is that: the upper end face of the vibrating table is provided with a centering hole and a plurality of groups of adjusting holes, the centering hole is positioned in the middle of the upper end face of the vibrating table, the plurality of groups of adjusting holes are uniformly distributed along the circumferential direction of the centering hole, and the plurality of groups of adjusting holes enclose a circular area; the number of groups of the adjusting holes is an even number larger than 14;

the vibration table is provided with a connecting plate: the middle part of the connecting plate is provided with a through hole, and the through hole is connected with the centering hole through a bolt; two ends of the connecting plate are respectively provided with a group of positioning holes, the positioning holes are matched with the adjusting holes, and the two groups of positioning holes are respectively connected with the two groups of adjusting holes in a position symmetrical manner through bolts;

the connecting plate is provided with a bracket: the bracket consists of a cross beam, two telescopic rods and two clamping blocks; the telescopic rods are axially perpendicular to the upper end face of the connecting plate, the lower ends of the telescopic rods are fixedly connected with the upper end face of the connecting plate, the two telescopic rods are respectively positioned at two sides of the centering hole, the positions of the two telescopic rods are symmetrical, locking mechanisms are arranged on the telescopic rods, and the telescopic rods can be locked by the locking mechanisms; the axial direction of the cross beam is parallel to the upper end surface of the connecting plate, and the two ends of the cross beam are respectively connected with the upper ends of the two telescopic rods; a plurality of connecting holes are formed in the transverse side wall of the cross beam, the connecting holes are distributed along the axial direction of the cross beam, and the connecting holes on two sides are symmetrically distributed; the clamping block is provided with clamping grooves matched with the cross beam, the side walls of the two sides of the clamping grooves are provided with locking holes matched with the connecting holes, and bolts are arranged in the locking holes and the connecting holes to lock the clamping block on the cross beam;

the particle damper is placed between the two clamping blocks, two clamping pieces are welded at two ends of the shell of the particle damper respectively, and the clamping pieces are connected with the corresponding clamping blocks through bolts.

When adopting the aforesaid scheme, on the one hand, the position of particle damper on the crossbeam can be adjusted through the position of regulation clamp splice, can make the eccentric setting of particle damper or set up at structural center, on the other hand, the setting height of particle damper is adjusted to the length of accessible regulation telescopic link, and on the other hand, multiunit regulation hole can provide multiple installation position for the connecting plate to change the relative position of particle damper and shaking table (namely change the relative position of particle damper and vibration direction promptly), this just makes we can adjust the gesture of particle damper in a flexible way in experimental process, thereby simulate out the different setting modes of particle damper.

Preferably, the telescopic link comprises sleeve pipe and regulation pole, sleeve pipe lower extreme and connecting plate up end fixed connection are provided with the elasticity card beans on the lateral wall of regulation pole lower extreme, are provided with a plurality of card holes on the sleeve pipe, and a plurality of card holes are along sleeve pipe axial distribution, and card hole and elasticity card beans match, and the regulation pole lower extreme is inserted in the sleeve pipe, and when elasticity card beans inserted card hole, the position of regulation pole was locked.

Preferably, each of the two ends of the cross beam is provided with a laser displacement target, the roots of the two telescopic rods are respectively provided with a laser displacement target, and the cross beam is provided with an acceleration sensor. After the laser displacement targets are arranged, the displacement generated when the cross beam and the connecting plate vibrate is measured by the multi-point video dynamic and static displacement strain tester, and the acceleration sensor is used for detecting the acceleration of the cross beam when the cross beam vibrates.

The beneficial technical effects of the utility model are as follows: the utility model provides a vibration test device for particle damper performance test, this scheme can improve particle damper gesture adjustment's flexibility by a wide margin to provide various test conditions for vibration test.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic diagram of a second embodiment of the present utility model;

the names corresponding to the marks in the figure are respectively: the vibration table 1, the adjusting hole 2, the connecting plate 3, the cross beam 4, the connecting hole 41, the sleeve 5, the adjusting rod 6, the elastic clamping bean 61, the laser displacement target 7, the particle damper 8 and the clamping block 9.

Detailed Description

The utility model provides a vibration test device for particle damper performance test, includes shaking table 1, and its improvement lies in: the upper end face of the vibrating table 1 is provided with a centering hole and a plurality of groups of adjusting holes 2, the centering hole is positioned in the middle of the upper end face of the vibrating table 1, the plurality of groups of adjusting holes 2 are uniformly distributed along the circumferential direction of the centering hole, and the plurality of groups of adjusting holes 2 encircle a circular area; the number of groups of the adjusting holes 2 is an even number greater than 14;

the vibration table 1 is provided with a connecting plate 3: the middle part of the connecting plate 3 is provided with a through hole, and the through hole is connected with the centering hole through a bolt; two ends of the connecting plate 3 are respectively provided with a group of positioning holes which are matched with the adjusting holes 2, and the two groups of positioning holes are respectively connected with the two groups of adjusting holes 2 in a bolt way;

the connecting plate 3 is provided with a bracket: the bracket consists of a cross beam 4, two telescopic rods and two clamping blocks 9; the axial direction of the telescopic rod is vertical to the upper end surface of the connecting plate 3, the lower end of the telescopic rod is fixedly connected with the upper end surface of the connecting plate 3, the two telescopic rods are respectively positioned at two sides of the centering hole, the positions of the two telescopic rods are symmetrical, a locking mechanism is arranged on the telescopic rods, and the locking mechanism can lock the telescopic rods; the axial direction of the cross beam 4 is parallel to the upper end surface of the connecting plate 3, and two ends of the cross beam 4 are respectively connected with the upper ends of the two telescopic rods; a plurality of connecting holes 41 are formed in the lateral side wall of the cross beam 4, the connecting holes 41 are distributed along the axial direction of the cross beam 4, and the connecting holes 41 on two sides are symmetrically distributed; the lower end face of the clamping block 9 is provided with a clamping groove matched with the cross beam 4, the side walls of the two sides of the clamping groove are provided with lock holes, the lock holes are matched with the connecting holes 41, and bolts are arranged in the lock holes and the connecting holes 41 to lock the clamping block 9 on the cross beam 4;

the particle damper is placed between the two clamping blocks 9, two clamping pieces are welded at two ends of the shell of the particle damper respectively, and the clamping pieces are connected with the corresponding clamping blocks 9 through bolts.

Further, the telescopic link comprises sleeve pipe 5 and regulation pole 6, sleeve pipe 5 lower extreme and connecting plate 3 up end fixed connection are provided with elasticity card beans 61 on the lateral wall of regulation pole 6 lower extreme, are provided with a plurality of card holes on the sleeve pipe 5, and a plurality of card holes are along sleeve pipe 5 axial distribution, and card hole and elasticity card beans 61 match, and regulation pole 6 lower extreme is inserted in sleeve pipe 5, and when elasticity card beans 61 inserted the card hole, the position of regulation pole 6 was locked.

Further, two ends of the beam 4 are respectively provided with a laser displacement target 7, the roots of the two telescopic rods are respectively provided with a laser displacement target 7, and the beam 4 is provided with an acceleration sensor.

Referring to fig. 1 and 2, in fig. 1, the particle damper 8 is located in the middle of the beam 4, the axial direction of the beam 4 is perpendicular to the edge of one side of the vibration table 1, in fig. 2, the position of the particle damper 8 is biased to the left end of the beam 4, and a certain included angle is formed between the axial direction of the beam 4 and the edge of the vibration table 1, at this time, the included angle between the axial direction of the beam 4 and the vibration direction of the vibration table 1 is different from the situation shown in fig. 1.

Claims

1. Vibration test device for particle damper performance test, including shaking table (1), its characterized in that: a centering hole and a plurality of groups of adjusting holes (2) are formed in the upper end face of the vibrating table (1), the centering hole is positioned in the middle of the upper end face of the vibrating table (1), the plurality of groups of adjusting holes (2) are uniformly distributed along the circumferential direction of the centering hole, and the plurality of groups of adjusting holes (2) encircle a circular area; the number of groups of the adjusting holes (2) is an even number larger than 14;

a connecting plate (3) is arranged on the vibrating table (1): the middle part of the connecting plate (3) is provided with a through hole, and the through hole is connected with the centering hole through a bolt; two ends of the connecting plate (3) are respectively provided with a group of positioning holes, the positioning holes are matched with the adjusting holes (2), and the two groups of positioning holes are respectively connected with the two groups of adjusting holes (2) with symmetrical positions by bolts;

the connecting plate (3) is provided with a bracket: the bracket consists of a cross beam (4), two telescopic rods and two clamping blocks (9); the axial direction of the telescopic rod is vertical to the upper end surface of the connecting plate (3), the lower end of the telescopic rod is fixedly connected with the upper end surface of the connecting plate (3), the two telescopic rods are respectively positioned at two sides of the centering hole, the positions of the two telescopic rods are symmetrical, and the telescopic rods are provided with locking mechanisms which can lock the telescopic rods; the axial direction of the cross beam (4) is parallel to the upper end surface of the connecting plate (3), and two ends of the cross beam (4) are respectively connected with the upper ends of the two telescopic rods; a plurality of connecting holes (41) are formed in the transverse side wall of the cross beam (4), the connecting holes (41) are axially distributed along the cross beam (4), and the connecting holes (41) on two sides are symmetrically distributed; the lower end face of the clamping block (9) is provided with a clamping groove matched with the cross beam (4), the side walls of the two sides of the clamping groove are provided with lock holes matched with the connecting holes (41), and bolts are arranged in the lock holes and the connecting holes (41) to lock the clamping block (9) on the cross beam (4);

the particle damper is arranged between the two clamping blocks (9), two clamping pieces are welded at two ends of the shell of the particle damper respectively, and the clamping pieces are connected with the corresponding clamping blocks (9) through bolts.

2. The vibration testing apparatus for particle damper performance testing of claim 1, wherein: the telescopic link comprises sleeve pipe (5) and regulation pole (6), sleeve pipe (5) lower extreme and connecting plate (3) up end fixed connection are provided with elasticity card beans (61) on regulation pole (6) lower extreme lateral wall, be provided with a plurality of card holes on sleeve pipe (5), a plurality of card holes are along sleeve pipe (5) axial distribution, card hole and elasticity card beans (61) match, regulation pole (6) lower extreme is inserted in sleeve pipe (5), when elasticity card beans (61) insert card hole, the position of regulation pole (6) is locked.

3. The vibration testing apparatus for particle damper performance testing according to claim 1 or 2, wherein: the two ends of the cross beam (4) are respectively provided with a laser displacement target (7), the roots of the two telescopic rods are respectively provided with a laser displacement target (7), and the cross beam (4) is provided with an acceleration sensor.