Modeling and analysis of a high precision gravity-loaded electro-hydraulic actuator system
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.
Yang Lin Yang Shi Richard Burton
Department of Mechanical Engineering, University of Saskatchewan, Saskatoon, SK/Canada
国际会议
杭州
英文
170-176
2009-04-08（万方平台首次上网日期，不代表论文的发表时间）