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A Synchronous In-Phase Parallel Excited Vibration Device

A vibrating device and vibrating table technology, which is used in measurement devices, vibration testing, and testing of machine/structural components, etc., can solve problems such as the inability to conduct vibration tests and the inability of the vibrating table to be synchronously excited in the same direction, achieving high consistency, The effect of reducing the quality of the table top and increasing the resonance frequency

Active Publication Date: 2016-09-14
BEIJING RES INST OF MECHANICAL & ELECTRICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if multiple vibration devices are used to jointly drive a test piece, there is a problem that multiple vibration tables cannot be synchronized and excited in the same direction. If multiple vibration tables are not synchronized, eccentric moments will be generated on the vibration table, making the vibration test impossible.

Method used

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  • A Synchronous In-Phase Parallel Excited Vibration Device
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  • A Synchronous In-Phase Parallel Excited Vibration Device

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Embodiment Construction

[0027] The present invention will be described in detail below in conjunction with the accompanying drawings and specific examples.

[0028] The present invention as figure 1 As shown, it includes a vibrating table system 2 , a public table 3 , an auxiliary guiding system frame structure 4 and a hydrostatic bearing guide device 5 , and the vibrating table system 2 includes three vibrating tables and a vibrating table support 6 . It can be more vibrating tables, generally in a symmetrical form.

[0029] The test piece to be subjected to the vibration test is a test product of the vibration test system. The test fixture is connected to the vibration table through the public table, and the test piece is installed at the center of the public table 3.

[0030] The shaking table system 2 is the main component of the whole test system, including three vertical shaking tables distributed in the shape of "品", three shaking table supports 6, and supporting power amplifiers and cooling ...

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Abstract

The invention provides a synchronous in-phase shunt-excitation vibration device which comprises a vibration table system, a common table top, an auxiliary guide system frame structure and a hydrostatic bearing guide device. The hydrostatic bearing guide device comprises an optical axis, a shaft sleeve, a connecting frame and a common table top installation structure, wherein the common table top installation structure is fixedly installed at the two ends of the optical axis, the shaft sleeve sleeves the optical axis, the optical axis and the shaft sleeve are in clearance fit, a gap between the optical axis and the shaft sleeve is filled with lubricating oil, and the connecting frame is fixedly installed on one side of the shaft sleeve. The hydrostatic bearing guide device is adopted, a motion axis (the optical axis) and a base (the shaft sleeve) of the guide device are in clearance fit, the surface matching degree is very high, good decoupling can be achieved, no eccentric torque is generated on vibration tables, and synchronous in-phase vibration of a plurality of vibration tables is ensured.

Description

technical field [0001] The invention relates to a synchronous and in-phase parallel excitation vibration device, which belongs to the technical field of vibration tests. Background technique [0002] Vibration test is an important part of product mechanical environment test and reliability test. It is a means of simulating the real use environment of products and an effective method in product design and evaluation. The electrodynamic vibration test system is a device used to generate vibration and can add this vibration to other structures, parts or products. Generally, it includes the electric vibration table body, power amplifier, controller and auxiliary equipment. The electrodynamic vibrating table mainly interacts with a constant magnetic field and a coil with a certain alternating current in the magnetic field to generate a certain exciting force. [0003] The range of aerospace vehicles is getting farther and farther, and the speed is getting faster and faster, res...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M7/06
Inventor 丁宁李军利高贵福王刚朱江峰
Owner BEIJING RES INST OF MECHANICAL & ELECTRICAL TECH
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