CN103712757A - High damping vibration test clamp - Google Patents
High damping vibration test clamp Download PDFInfo
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- CN103712757A CN103712757A CN201310667790.4A CN201310667790A CN103712757A CN 103712757 A CN103712757 A CN 103712757A CN 201310667790 A CN201310667790 A CN 201310667790A CN 103712757 A CN103712757 A CN 103712757A
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- bottom board
- connecting bottom
- vibration test
- high damping
- riser
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Abstract
The invention discloses a high damping vibration test clamp which comprises a connecting bottom board (1), a connecting vertical board (1) and reinforcing ribs (3), and further comprises a high damping rubber layer (4) and a restraint layer (5). The connecting bottom board (1) is horizontally placed, the connecting vertical board (2) is vertically placed, and the connecting vertical board (2) and the connecting bottom board (1) are fixed in a welded manner; the reinforcing ribs (3) are perpendicular to the connecting bottom board (1) and the connecting vertical board (2) and welded to the connecting bottom board (1) and the connecting vertical board (2) respectively. The high damping vibration test clamp is connected with a platform board of a vibration platform through threaded holes in the connecting bottom board (1); and a detected device is connected with the high damping vibration test clamp through threaded holes in the connecting vertical board (2) and threaded holes in the connecting bottom board (1). According to the high damping vibration test clamp, the high damping rubber layer adheres to the surface of the clamp and the restraint layer is added to the high damping rubber layer, so that the damping of the clamp is increased, and therefore the transmission characteristics of the clamp are effectively improved.
Description
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Technical field
The present invention relates to a kind of vibration test fixture, particularly a kind of high damping vibration test fixture.
Background technology
In vibration test, fixture transmits medium as the link between shaking table and equipment under test and energy, and its dynamics directly affects the confidence level of vibration test.
Due to the singularity of vibration test fixture, ideally, fixture does not resonate in frequency range in test, undistorted can guarantee equipment to be subject to the vibrational excitation of defined in standard.If fixture by vibration damping, causes equipment " undertesting ", make original underproof product by test; If fixture will vibrate amplification, cause equipment " overtesting ", make original qualified product can not pass through test.The large-scale jig required to main equipment, the condition that resonance does not occur sometimes in test frequency range is difficult to reach, and this just requires fixture enough little at test frequency range internal resonance peak, in order to avoid affect the control accuracy of shaking table, and avoid feedback open loop, this just requires fixture to have larger damping.Traditional vibration test fixture is used the material welding such as steel, aluminium alloy or casting to form conventionally, and the damping of similar structures is conventionally not high, is not well positioned to meet the relevant requirements of vibration test.
A kind of random vibration test cramp has been described in patented claim 200820096567.3, connecting bottom board, connection riser, stiffening rib, consists of, and between three, is welded as a whole.Riser is polymorphic structure, equipment is installed more convenient, but same shortage increases the measure of fixture damping, can not well control the amplitude of resonance peak.Patented claim 201120207852.X has described a kind of vibration tong, by connecting riser, stiffening rib and a connecting bottom board, form, connect riser perpendicular to connecting bottom board, and fix with connecting bottom board, the bottom of two stiffening rib is separately fixed at the both sides of vibrating bottom plate, and the method for welding again after employing is threaded by three partial fixings together.This vibration tong does not increase the measure of structural damping, and damping is less, and control accuracy is lower.
The objects such as in a word, the above patent is all based on traditional design, has mainly improved the architectural feature of fixture, thereby reaches raising natural frequency, easy to use, do not increase the measure of damping.
Summary of the invention
The object of the present invention is to provide a kind of high damping vibration test fixture, solve the less problem of traditional vibration test fixture damping.
A high damping vibration test fixture, comprising: connecting bottom board, connection riser and stiffening rib, also comprise: high-damping rubber layer and restraint layer.
Connecting bottom board be connected riser and be steel rectangular slab, connecting bottom board horizontal positioned, connects riser and vertically places, and connects riser vertical with connecting bottom board and be welded and fixed; Stiffening rib is triangular shape, and stiffening rib is N piece, 2≤N≤5 wherein, stiffening rib perpendicular to connecting bottom board be connected riser and respectively with connecting bottom board, is connected riser and welds; High-damping rubber layer sticks on connecting bottom board, connects on the outside surface of riser, stiffening rib, and restraint layer sticks on the outside surface of high-damping rubber layer.Connecting bottom board be connected riser on all have threaded hole; High damping vibration test fixture is connected with shaking table platen by the threaded hole on connecting bottom board; Equipment under test is connected with high damping vibration test fixture with the threaded hole on connecting bottom board by connecting riser.
When high damping vibration test fixture is used, first high damping vibration test fixture is lifted on shaking table platen; The installation direction of adjusting high damping vibration test fixture with the vibrating shaft of shaking table to consistent; Equipment under test is lifted to paramount damped vibration test fixture installed surface, and the mounting hole of adjusting equipment under test makes equipment under test align with the mounting hole of high damping vibration test fixture; By the threaded hole on connecting bottom board and connection riser, equipment under test is fixed on fixture; Adjust the position of the comprehensive gravity center of high damping vibration test fixture and equipment under test assembly, make the motion axis coinciding of comprehensive gravity center axis and shaking table; Then by the threaded hole on connecting bottom board, high damping vibration test fixture is fixed on shaking table platen; Finally apply excitation and carry out vibration test.
Chucking surface of the present invention has been pasted one deck high-damping rubber layer and increased restraint layer on high-damping rubber layer, thereby has increased the damping of fixture, can effectively improve the transmission characteristic of fixture.
Accompanying drawing explanation
The structural representation of a kind of high damping vibration test fixture of Fig. 1.
The cut-open view of a kind of high damping vibration test fixture of Fig. 2.
1. connecting bottom board 2. connects riser 3. stiffening rib 4. high-damping rubber layer 5. restraint layer.
Embodiment
A high damping vibration test fixture, comprising: connecting bottom board 1, connection riser 2 and stiffening rib 3, also comprise: high-damping rubber layer 4 and restraint layer 5.
Connecting bottom board 1 be connected riser 2 and be steel rectangular slab, connecting bottom board 1 horizontal positioned, connects riser 2 and vertically places, connection riser 2 is vertical with connecting bottom board 1 and be welded and fixed; Stiffening rib 3 is triangular shape, and stiffening rib 3 is N piece, 2≤N≤5 wherein, stiffening rib 3 perpendicular to connecting bottom board 1 be connected riser 2 and respectively with connecting bottom board 1, is connected riser 2 and welds; High-damping rubber layer 4 sticks on connecting bottom board 1, connects on the outside surface of riser 2, stiffening rib 3, and restraint layer 5 sticks on the outside surface of high-damping rubber layer 4.Connecting bottom board 1 be connected riser 2 on all have threaded hole; High damping vibration test fixture is connected with shaking table platen by the threaded hole on connecting bottom board 1; Equipment under test is connected with high damping vibration test fixture with the threaded hole on connecting bottom board 1 by connecting riser 2.
When high damping vibration test fixture is used, first high damping vibration test fixture is lifted on shaking table platen; The installation direction of adjusting high damping vibration test fixture with the vibrating shaft of shaking table to consistent; Equipment under test is lifted to paramount damped vibration test fixture installed surface, and the mounting hole of adjusting equipment under test makes equipment under test align with the mounting hole of high damping vibration test fixture; By the threaded hole on connecting bottom board 1 and connection riser 2, equipment under test is fixed on fixture; Adjust the position of the comprehensive gravity center of high damping vibration test fixture and equipment under test assembly, make the motion axis coinciding of comprehensive gravity center axis and shaking table; Then by the threaded hole on connecting bottom board 1, high damping vibration test fixture is fixed on shaking table platen; Finally apply excitation and carry out vibration test.
Claims (1)
1. a high damping vibration test fixture, comprising: connecting bottom board (1), connection riser (2) and stiffening rib (3), characterized by further comprising: high-damping rubber layer (4) and restraint layer (5);
Connecting bottom board (1) be connected riser (2) and be steel rectangular slab, connecting bottom board (1) horizontal positioned, connects riser (2) and vertically places, connection riser (2) is vertical with connecting bottom board (1) and be welded and fixed; Stiffening rib (3) is triangular shape, and stiffening rib (3) is N piece, 2≤N≤5 wherein, stiffening rib (3) perpendicular to connecting bottom board (1) be connected riser (2) and respectively with connecting bottom board (1), is connected riser (2) and welds; High-damping rubber layer (4) sticks on connecting bottom board (1), connects on the outside surface of riser (2), stiffening rib (3), and restraint layer (5) sticks on the outside surface of high-damping rubber layer (4); Connecting bottom board (1) be connected riser (2) on all have threaded hole; High damping vibration test fixture is connected with shaking table platen by the threaded hole on connecting bottom board (1); Equipment under test is connected with high damping vibration test fixture with the threaded hole on connecting bottom board (1) by connecting riser (2);
When high damping vibration test fixture is used, first high damping vibration test fixture is lifted on shaking table platen; The installation direction of adjusting high damping vibration test fixture with the vibrating shaft of shaking table to consistent; Equipment under test is lifted to paramount damped vibration test fixture installed surface, and the mounting hole of adjusting equipment under test makes equipment under test align with the mounting hole of high damping vibration test fixture; By the threaded hole on connecting bottom board (1) and connection riser (2), equipment under test is fixed on fixture; Adjust the position of the comprehensive gravity center of high damping vibration test fixture and equipment under test assembly, make the motion axis coinciding of comprehensive gravity center axis and shaking table; Then by the threaded hole on connecting bottom board (1), high damping vibration test fixture is fixed on shaking table platen; Finally apply excitation and carry out vibration test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310667790.4A CN103712757A (en) | 2013-12-11 | 2013-12-11 | High damping vibration test clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310667790.4A CN103712757A (en) | 2013-12-11 | 2013-12-11 | High damping vibration test clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103712757A true CN103712757A (en) | 2014-04-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310667790.4A Pending CN103712757A (en) | 2013-12-11 | 2013-12-11 | High damping vibration test clamp |
Country Status (1)
| Country | Link |
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| CN (1) | CN103712757A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105215877A (en) * | 2015-09-30 | 2016-01-06 | 珠海格力电器股份有限公司 | The fixing tool of electric expansion valve |
| CN112857724A (en) * | 2021-02-25 | 2021-05-28 | 中国科学院地质与地球物理研究所 | Vertical vibration test device and system for drilling tool |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3536463B2 (en) * | 1995-08-28 | 2004-06-07 | 鹿島建設株式会社 | Vibration test method and vibration test device for building |
| CN201233303Y (en) * | 2008-08-07 | 2009-05-06 | 贵州航天凯天科技有限责任公司 | Random vibration test cramp |
| CN201697772U (en) * | 2010-06-29 | 2011-01-05 | 长沙理工大学 | Experimental system for damping dynamic response of shrouded blades |
| CN202141571U (en) * | 2011-06-20 | 2012-02-08 | 中航华东光电有限公司 | Vibration clamp |
| US20120103094A1 (en) * | 2010-04-21 | 2012-05-03 | Delta Design, Inc. | System and method for accelerating a device |
| CN103471797A (en) * | 2013-09-26 | 2013-12-25 | 北京无线电测量研究所 | High damping vibration test clamp |
-
2013
- 2013-12-11 CN CN201310667790.4A patent/CN103712757A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3536463B2 (en) * | 1995-08-28 | 2004-06-07 | 鹿島建設株式会社 | Vibration test method and vibration test device for building |
| CN201233303Y (en) * | 2008-08-07 | 2009-05-06 | 贵州航天凯天科技有限责任公司 | Random vibration test cramp |
| US20120103094A1 (en) * | 2010-04-21 | 2012-05-03 | Delta Design, Inc. | System and method for accelerating a device |
| CN201697772U (en) * | 2010-06-29 | 2011-01-05 | 长沙理工大学 | Experimental system for damping dynamic response of shrouded blades |
| CN202141571U (en) * | 2011-06-20 | 2012-02-08 | 中航华东光电有限公司 | Vibration clamp |
| CN103471797A (en) * | 2013-09-26 | 2013-12-25 | 北京无线电测量研究所 | High damping vibration test clamp |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105215877A (en) * | 2015-09-30 | 2016-01-06 | 珠海格力电器股份有限公司 | The fixing tool of electric expansion valve |
| CN105215877B (en) * | 2015-09-30 | 2017-11-21 | 珠海格力电器股份有限公司 | The fixing tool of electric expansion valve |
| CN112857724A (en) * | 2021-02-25 | 2021-05-28 | 中国科学院地质与地球物理研究所 | Vertical vibration test device and system for drilling tool |
| CN112857724B (en) * | 2021-02-25 | 2022-01-25 | 中国科学院地质与地球物理研究所 | Vertical vibration test device and system for drilling tool |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140409 |