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压电式推力测试系统动态性能分析与改善

Release Time:2019-03-10  Hits:

Indexed by: Journal Article

Date of Publication: 2012-12-15

Journal: 压电与声光

Included Journals: CSCD、ISTIC、PKU、Scopus

Volume: 34

Issue: 6

Page Number: 936-939

ISSN: 1004-2474

Key Words: 压电;推力测试;动态标定;动态性能;阻尼补偿

Abstract: 姿控火箭发动机推力测试系统的动态性能对于推力测量的准确性具有重要影响.采用方形脉冲力模拟发动机推力,对压电式推力测试系统进行了动态标定,根据频响特性曲线建立了测试系统的高阶传递函数模型并获得了动态性能指标.针对测试过程中的超调和振荡,基于高阶传递函数模型,采用阻尼补偿法对推力测试系统的输出进行补偿.结果表明,经过补偿后误差减小,改善了压电式推力测试系统的动态性能.

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