Modeling and analysis of a high precision gravity-loaded electro-hydraulic actuator system

机译：高精度重力加载式电动液压执行器系统的建模与分析

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In this work, an electro-hydrostatic actuator system (EHA) is considered which would act as the prime positioning system for a Bio-Medical Imaging and Therapy (BMIT) facility (a revolutionary new tool of imaging, studying and treatment of cancer). The positioning system will require an advanced controller to achieve high positioning purpose. A model which reflects many of the nonlinear characteristics of the electro-hydrostatic positioning system is presented using the bond graph approach. The performance of the model is evaluated in both the time and frequency domains and is compared to the linearized model. Model testing results illustrate that the established large signal model is promising for further system analysis, design and control development.

机译：在这项工作中，考虑使用电动静液压执行器系统（EHA）作为生物医学成像和治疗（BMIT）设施（成像，研究和治疗癌症的革命性新工具）的主要定位系统。定位系统将需要高级控制器来实现高定位目的。使用键图方法，提出了一个反映静电静液压定位系统许多非线性特征的模型。在时域和频域均评估了模型的性能，并将其与线性化模型进行了比较。模型测试结果表明，已建立的大信号模型有望用于进一步的系统分析，设计和控制开发。

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来源
《Proceedings of the Seventh international conference on fluid power transmission and control》|2009年|p.170-176|共7页
会议地点 Hangzhou(CN);Hangzhou(CN)
作者
Yang Lin; Yang Shi; Richard Burton;
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作者单位

Department of Mechanical Engineering, University of Saskatchewan, Saskatoon, SK/Canada;

Department of Mechanical Engineering, University of Saskatchewan, Saskatoon, SK/Canada;

Department of Mechanical Engineering, University of Saskatchewan, Saskatoon, SK/Canada;

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正文语种 eng
中图分类液压传动;
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Modeling and analysis of a high precision gravity-loaded electro-hydraulic actuator system

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