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Vibration test fixture

一种振动测试、夹具的技术，应用在振动测试、冲击测试、机器/结构部件的测试等方向，能够解决温度变化和温度梯度变形等问题

Inactive Publication Date: 2019-11-12
TEAM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This design provides limited load capacity and tolerance for uneven external loads on the slide
This design has the additional disadvantage of deformation caused by temperature changes and temperature gradients as the general environment when such a T-shaped film carrier is used with a slide table operated with a heat treatment chamber

Method used

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  • Vibration test fixture
  • Vibration test fixture
  • Vibration test fixture

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] figure 1 Components of a vibration test fixture in accordance with the principles of the invention are illustrated. The jig comprises a rigid and generally planar slide 10 mounted for reciprocating linear travel on a planar upper bearing surface 12 of a system of linear bearings 14 . The slide has a generally uniform thickness and has a generally rectangular nominal surface area in the region of its bottom surface which is supported for rectilinear travel on the upper bearing surface 12 .

[0014] Separate sets of longitudinally spaced holes 16 extend through the slide plate. figure 1 Illustrated are two sets of five holes aligned along a first axis defining the axis of travel of the sled; and two separate sets of holes aligned along a second axis parallel to the set of holes on the first axis. five holes. These sets of holes provide means for receiving fasteners for securely securing the slide to the load guide member for guiding the uniaxial travel of the slide on ...

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PUM

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Abstract

A T-film bearing for a vibration fixture including a bottom plate, two spaced apart middle plates positioned on the bottom plate, two spaced apart top plates positioned on the middle plates in which the middle plates and the top plates form a T-shaped linear channel for movement of a T-shaped guide member of a slip plate, and oil distribution grooves positioned on a top surface of each of the topplates and the bottom plate defining an independent pressure area, and each groove having a dedicated flow restrictor for supplying lubricating oil to the groove for lubricating reciprocating travel of the guide member within the linear channel and the slip plate on the top plates.

Description

Background technique [0001] The present invention relates to testing equipment for simulating vibration and shock loads applied to an item under test, and more particularly to a vibration test fixture having a linear load bearing system with a large oil film bearing surface, the linear load bearing system Used to support the load of a vibratory test item during uniaxial vibration and shock testing. [0002] The vibration testing industry has employed various methods and systems to simulate vibration and shock environments in order to determine the efficacy and life of products when subjected to these environmental extremes. An important parameter to control in vibration and shock testing equipment is the vibration axis. Certain test equipment will generate uniaxial vibrations of the item under test while constraining any cross-axis vibrations or motions not along the input axis of the vibration source. [0003] Various types of oil film tables, load bearings, load bearing oi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C32/06G01M7/02G01M7/04
CPCG01M7/027G01M7/04F16C32/06F16C32/0655F16C32/0644F16C32/0659F16C29/025F16C2370/00G01M7/08
Inventor 道格拉斯·A·隆德
Owner TEAM CORP