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首页> 外文会议>World conference on earthquake engineering;WCEE >EFFECT OF SERVOVALVE/ACTUATOR DYNAMICS ONDISPLACEMENT CONTROLLED TESTING
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EFFECT OF SERVOVALVE/ACTUATOR DYNAMICS ONDISPLACEMENT CONTROLLED TESTING

机译：伺服阀/执行器动力学对位移控制测试的影响

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摘要

This paper presents a study of the use of servo-hydraulic actuators in the implementation of dynamictesting techniques in displacement control. Mathematical models for a displacement-controlled testsystem are presented and used to investigate the influences of the servo-system on the overall system. Theinfluence investigated includes response amplitude reduction, system stability and controller gain setting,system response delay, and nonlinearities in servo-systems. Linear system analysis and computersimulation were conducted to explain and predict the system response. While the emphasis throughout ison the development of an understanding of the influences, a simple first-order phase-lead network wasused to compensate for the amplitude reduction and response delay for tests with small hydraulicdemands. The results indicated that the influences can be predicted and compensation schemes can bedeveloped with the presented models.
机译：本文介绍了在位移控制中动态测试技术的实施中使用伺服液压执行器的研究。提出了位移控制测试系统的数学模型，并用于研究伺服系统对整个系统的影响。研究的影响包括响应幅度降低，系统稳定性和控制器增益设置，系统响应延迟以及伺服系统的非线性。进行了线性系统分析和计算机仿真，以解释和预测系统响应。在整个过程中重点放在对影响的理解上，同时使用简单的一阶相位超前网络来补偿小液压需求测试的幅度减小和响应延迟。结果表明，所提出的模型可以预测影响，并制定补偿方案。

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  • 会议地点 Vancouver(CA);Vancouver(CA)
  • 作者

    Jian ZHAO; Carol SHIELD; Catherine FRENCH; Thomas POSBERGH;

  • 作者单位

    Department of Civil Construction and Environmental Engineering Iowa State University 384 Town Engineering Building Ames IA 50011 USA;

    Department of Civil Engineering University of Minnesota Minneapolis 122 Civil EngineeringBuilding 500 Pillsbury Drive SE Minneapolis MN 55455 USA;

    Department of Electrical and Computer Engineering University of Minnesota Minneapolis 4-174Electrical Engineering & Computer Science Bldg. 200 Union St. SE Minneapolis MN 55455 USA;

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