《机床与液压》 Hydromechatronics Engineering

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稿件标题: Dynamic Characteristic Analysis of Open-type Hydrostatic guide Based on PM Flow Controller
稿件作者: GAO Dianrong , ZHANG Zuochao, ZHAO Jianhua
关键字词: PM flow Controller , open-type hydrostatic slide , nonlinear differential equations systems , laplace transform , dynamic stiffness
文章摘要: Hydrostatic guide system, which is actually nonlinear system, usually is considered as the linear system when the dynamic performance is concerned, however, the error via linearization transform has not been analyzed. Take the open-type hydrostatic guide adjusted by PM flow Controller as an example, the nonlinear differential equations of the pressure and flow are derived. One method to linearize the nonlinear differential equations by Laplace transform and the corresponding transfer functions are obtained, and the step response curves and the pulse response curves are presented in this paper. The other method for hydrostatic guide system is to use Simulink tool box to build the nonlinear system block diagram of the guide system. The corresponding step response curves and the pulse response curves are presented as well. Comparing the response curves from these two different methods, the difference between the results are very small, and the precision of these two methods can meet the d
收录刊物: 2012.6
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