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Vibration output force following control device and control method thereof

A technology of following control and output force, which is applied in the direction of program control and electrical program control in sequence/logic controllers, can solve the problems of high price and low openness of control system, and achieve the effect of high control precision

Inactive Publication Date: 2014-07-02
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But at present, domestic electric vibrating tables mainly rely on imports, the price is high and the degree of openness of the control system is low.

Method used

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  • Vibration output force following control device and control method thereof
  • Vibration output force following control device and control method thereof
  • Vibration output force following control device and control method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0040] Such as figure 1 and figure 2 As shown, a vibration output force following control device, the device includes a mechanical body module, an AC servo motor drive module and a control module:

[0041] The mechanical body module includes:

[0042] The support stand 7 is constructed with 60×60 aluminum profiles, and the overall size is 600×320×200mm. The base of the linear motion module 6 is directly connected with the supporting platform 7 by bolts, and the AC servo motor end is suspended outside the supporting platform. The AC servo motor 1 drives the workbench of the linear motion module 6 to move through the coupling 2 .

[0043] The mass block 5 is fixed on the workbench, and the unidirectional charge output type piezoelectric acceleration sensor 4 is fixedly connected to the mass block 5, which can be used to detect the acceleration signals of the workbench and the mass block 5 in the vibration direction.

[0044] Three PNP type proximity sensors 3 are fixed on o...

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PUM

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Abstract

The invention discloses a vibration output force following control device which comprises a mechanical body module, an alternating-current servo motor driving module and a control module. The invention further discloses a control method of the vibration output force following control device. The control method comprises the following steps that 1, a controller sets vibration output force signals needing to be tracked, and sets a control system sampling period; 2, the controller acquires the acceleration signals of a workbench from an analog input module, and displacement signals of the workbench are acquired from an incremental encoder interface terminal module; 3, the collected signals are processed by the controller to generate control output signals; 4, after D / A conversion is carried out the output signals generated by the controller through an analog output terminal module, voltage signals from -10 V to +10 V are generated to control an alternating-current servo motor to move. The device and the method have the advantages of reducing the phase errors of the output force signals, reducing output force signal distortion and the like.

Description

technical field [0001] The invention relates to a mechanical vibration and control technology, in particular to a vibration output force following control device and a control method thereof. Background technique [0002] The simulated vibration platform has been widely used in engineering fields such as aerospace, weapons and ships, vehicle transportation, building structures and geological exploration. The common electro-hydraulic vibration table can be used to test the adaptability, fatigue strength and resonance frequency of parts or assemblies to the vibration environment, etc.; the earthquake simulation vibration table can be used to simulate the response of structures such as houses in the seismic wave environment, and then put forward Anti-seismic measures; the vibrator shaking table can be used to launch seismic waves underground for geological exploration, etc. The principle of the analog vibration platform is to follow and reproduce the expected input signal (suc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/04
Inventor 邹焱飚张献伟张铁
Owner SOUTH CHINA UNIV OF TECH
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