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以液压千斤顶为例,以AMEsim元件标准液压缸带有理想终点挡板的质量块模型建模,利用AMEsim中的HCD库中基于几何形状和物理特性的模块单元构建液压缸和负载建模。仿真优化时综合考虑了容积的时变性,管路中的动态特性,液压油经过液压缸活塞的泄漏和黏性摩擦等因素,达到了2种仿真结果趋于一致。仿真表明,只要认真分析,找到系统中影响结果的各种原因,就能利用HCD库进行复杂系统仿真,把仿真结果作为系统设计的重要参考。
Taking a hydraulic jack as an example, a mass block model with an AMEim component standard hydraulic cylinder with an ideal end stop is modeled, and a hydraulic cylinder and a load model are built using modular elements based on geometry and physical characteristics in the HCD library in AMEsim. Considering the time variation of the volume, the dynamic characteristics in the pipeline, the leakage of the hydraulic oil through the piston of the hydraulic cylinder and the viscous friction, the simulation results of the two kinds of simulation tend to be consistent. The simulation shows that as long as we carefully analyze and find out the various reasons that affect the result in the system, we can use the HCD library to carry out the complex system simulation and take the simulation results as the important reference for system design.