CN106404520A - Web beam structure anti-destabilization clamper under fatigue shear load effect - Google Patents
Web beam structure anti-destabilization clamper under fatigue shear load effect Download PDFInfo
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- CN106404520A CN106404520A CN201510454551.XA CN201510454551A CN106404520A CN 106404520 A CN106404520 A CN 106404520A CN 201510454551 A CN201510454551 A CN 201510454551A CN 106404520 A CN106404520 A CN 106404520A
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- beam structure
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Abstract
The present invention belongs to the field of tooling design, and particularly relates to a web beam structure anti-destabilization clamper under a fatigue shear load effect. The web beam structure anti-destabilization clamper comprises a bracket 9, rollers 7 and clamping plates 10, wherein one end of the bracket 9 is the clamping end and the other end is the sliding end, the sliding end is connected to the rollers 7 through ball hinges 8, the clamping ends are fixedly connected to a web beam structure 11 from both sides, and the clamping plates are tightly matched with the rollers 7 from both sides, such that the clamping effect is provided for the whole clamper.
Description
Technical field
ThisInventionBelong to Fixture Design field and in particular toA kind of plate web girder structure anti-unstability fixture under fatigue shear loads.
Background technology
Web beam testpieces is acted on by tired shear-type load, and for test section, web holds shearing, and upper underbeam edge strip is subject to tension and compression respectively.One side beam edge strip it may occur however that lateral bucking, on the other hand considers that the position of loaded load may have little deviation with the testpieces profile heart, produce additional torque to testpieces and lead to torsional deflection in the presence of compressive load.Therefore for avoiding above-mentioned possible destabilization problems, need anti-unstability device is installed.
The anti-unstability fixture of existing the following two kinds：
A kind of structure is flexible support bar anti-unstability device, even in the ox spring《airframe stress analysis and sizing》Give a kind of plate web girder structure anti-unstability fixture design approach in one book, that is, design a flexible transverse support bar, one end is connected with testpieces, and one end is fixed on rack beam.
Another kind of structure clamps anti-unstability device for channel-section steel, and application two, to channel-section steel clamp assay part, leaves minim gap, channel-section steel two ends are fixed on test bracket crossbeam between channel-section steel and testpieces.
Content of the invention
The technical problem to be solved in the present invention：
Devise a kind of anti-unstability device of rigid supporting rod with roller herein, from unlike flexible support bar, rigid supporting rod one end is connected with testpieces, the other end is contacted with grip block with roller by ball pivot, anti- unstability device is made arbitrarily to move on the direction of web surface with testpieces, the out-of-plane deformation of limit assay part, this device is affected by human factors little, is easy to design operation.Technical scheme：
A kind of plate web girder structure anti-unstability fixture under fatigue shear loadsIncluding support 9, roller 7, grip block 10, described support 9 one end is bare terminal end, the other end is sliding end, described sliding end connects roller 7 by ball pivot 8, bare terminal end is fixedly connected on plate web girder structure 11 from both sides, and grip block 10 is fitted close with being connected roller 7 from both sides, plays clamping action to whole fixture.
Beneficial effects of the present invention：
Using this rigid supporting rod with roller anti-unstability device, it is affected by human factors little, rigid supporting rod (support) is easy to design, the out-of-plane deformation of a limit assay part effectively prevents testpieces from twisting or lateral bucking.
Brief description
Figure1 is that rigid supporting rod anti-unstability device is illustrated；
Wherein：1 is to load transition region, and 2 is trial zone, and 3 is pressurized strut, and 5 is clamping transition region, and 6 is virtual load structure；
Figure2 is rigid supporting rod anti-unstability device section viewFigure；
Wherein：7 is roller, 8 is ball pivot, 9 is support, 10 is grip block, 11 is plate web girder structure.
Specific embodiment
Before the test, choose maximum unit fatigue load to analyze, determine the deformation size of testpieces, and then the size of determination grip block, make roller have enough spaces to roll on grip block, prevent from causing roller to skid off grip block because deformation is excessive；Calculate the load that analysis determines on fixture, for choosing satisfactory roller, ball pivot, support etc. simultaneously.In the case of testpieces is mounted, adjustment support is it is ensured that roller is in close contact with grip block.
When carrying out fatigue test, load acts on web beam testpieces, because there being roller 7, anti- unstability fixture can occur the movement in web surface together with testpieces, when web out-of-plane deformation in the excessive unstability of pressurized edge strip stand under load, support 9 (rigid supporting rod) limits the out-of-plane deformation of edge strip.
Claims (1)
1. the plate web girder structure anti-unstability fixture under a kind of fatigue shear loads is it is characterised in that include support (9), roller
(7), grip block (10), described support (9) one end is bare terminal end, and the other end is sliding end, and described sliding end passes through ball pivot
(8) connect roller (7), bare terminal end is fixedly connected on plate web girder structure (11) from both sides, and grip block (10) is from both sides
It is fitted close with being connected roller (7), clamping action is played to whole fixture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510454551.XA CN106404520A (en) | 2015-07-29 | 2015-07-29 | Web beam structure anti-destabilization clamper under fatigue shear load effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510454551.XA CN106404520A (en) | 2015-07-29 | 2015-07-29 | Web beam structure anti-destabilization clamper under fatigue shear load effect |
Publications (1)
| Publication Number | Publication Date |
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| CN106404520A true CN106404520A (en) | 2017-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510454551.XA Pending CN106404520A (en) | 2015-07-29 | 2015-07-29 | Web beam structure anti-destabilization clamper under fatigue shear load effect |
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| CN (1) | CN106404520A (en) |
Cited By (3)
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|---|---|---|---|---|
| CN107966359A (en) * | 2017-11-16 | 2018-04-27 | 彩虹无人机科技有限公司 | A kind of fixture and installation method for testing beam web collapsing load |
| CN109632455A (en) * | 2018-11-29 | 2019-04-16 | 中国科学院金属研究所 | A kind of detection method of ceramic core sintering warpage amount |
| CN112485135A (en) * | 2020-10-30 | 2021-03-12 | 中国直升机设计研究所 | Fatigue test device and verification method for rigid rotor wing composite material long pull rod |
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| CN102539243A (en) * | 2012-01-16 | 2012-07-04 | 上海交通大学 | Device for testing compression in rectangular steel plate surface |
| CN202869905U (en) * | 2012-07-06 | 2013-04-10 | 中国航空工业集团公司西安飞机设计研究所 | Aircraft wing web curved scissor test device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107966359A (en) * | 2017-11-16 | 2018-04-27 | 彩虹无人机科技有限公司 | A kind of fixture and installation method for testing beam web collapsing load |
| CN109632455A (en) * | 2018-11-29 | 2019-04-16 | 中国科学院金属研究所 | A kind of detection method of ceramic core sintering warpage amount |
| CN112485135A (en) * | 2020-10-30 | 2021-03-12 | 中国直升机设计研究所 | Fatigue test device and verification method for rigid rotor wing composite material long pull rod |
| CN112485135B (en) * | 2020-10-30 | 2022-09-13 | 中国直升机设计研究所 | Fatigue test device and verification method for rigid rotor wing composite material long pull rod |
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Application publication date: 20170215 |