Parallel device multiple-dimensional vibration platform

A technology of vibration excitation table and parallel connection, which is applied in the testing of machine/structural components, vibration test, measuring device, etc., can solve the problem of less vibration excitation table in parallel mechanism, and achieve the effect of easy control and high motion accuracy.

Inactive Publication Date: 2007-10-17
JIANGSU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there are very few researches on the parallel mechanism vibration platform in China. The patents found such as: CN1526483 are only suitable for the vibration test of flexible micro-machines, and no scholars have studied the medium and small parallel mechanism vibration platform.

Method used

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  • Parallel device multiple-dimensional vibration platform
  • Parallel device multiple-dimensional vibration platform
  • Parallel device multiple-dimensional vibration platform

Examples

Experimental program
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Embodiment Construction

[0019] As shown in Figure 2, Example 1 consists of three identical branched chains SOC{-C-U-R} and two platforms (one dynamic platform and one static platform), each branched chain consists of a cylinder pair (C), a ten thousand It consists of a knuckle (U) and a revolving pair (R). The specific layout of each kinematic pair in each branch chain is as follows: one end of the cylindrical pair is connected with the static platform, the other end is connected with the universal joint necklace through the connecting rod, the other end of the universal joint is connected with the rotating pair through the connecting rod, and the rotating pair The other end is connected with the moving platform. The axis of rotation of the cylindrical pair in each branch chain is parallel to the axis of rotation of the rotating pair. The three branch chains are arranged vertically and orthogonally in the initial position. Through the analysis of the motion characteristics of the mechanism, it can ...

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Abstract

A multi-dimensional parallel mechanism vibrating table which relates to middle, small type mechanical vibration measuring field includes a multi-freedom parallel mechanism composed of 3~6 branch chains, a moving platform and a static platform, each branch chain can select one or several motion pairs from revolute pair, shifting pair, column pair, sphere pair or helix pair which are connected by connecting bars therebetween, axes configuration between the motion pairs can be coincident, parallel, upright, intersected or coplane, one end of each branch chain is connected with the moving platform, while another is connected with the static platform. The invention is capable of outputting arbitrary waveform with simple structure, low costs, great firmness, high motion precision and convenience for control.

Description

technical field [0001] The invention relates to a kind of multi-dimensional vibration excitation platform with parallel mechanism. The movement to the vibrator makes the moving platform produce spatial multi-dimensional excitation. The invention can be applied to the field of medium and small-sized mechanical vibration testing, and can also be used to detect the vibration-damping performance of a multi-dimensional vibration-damping platform. Background technique [0002] With the improvement of reliability requirements for products, especially aerospace products, the development of vibration test system as the key equipment of reliability test is becoming more and more important. Vibration test technology has been widely used in automobiles, electric power, construction, electronics, Machine tools, shipbuilding and other industries. As an effective means to test product reliability and dynamic strength, shaking table test has been widely used in performance assessment and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M7/06
CPCG01M7/06
Inventor 马履中仲栋华
Owner JIANGSU UNIV
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