基于AMESim的多路水压测试系统的研究

Research on Multi-channel Water Pressure Testing System Based on AMESim

针对多路水压测试系统压力闭环控制问题,从水压测试系统的原理出发,建立了多路水压测试系统的原理模型。基于AMESim平台对系统压力的建立、比例调压阀压力控制等性能作了仿真研究。基于AMESim模型分析了水压测试系统响应特性、系统压力控制精度与不同元器件参数的关系,比如不同参数的空气过滤器、不同孔径的管路及其他不同参数的元器件。分析比较了不同的PID参数设置下,气压比例阀压力控制环节与液压缸夹持压力的主油路水压控制环节的压力响应曲线,得出了匹配的PID参数设计是水压测试系统控制系统的关键。

Aiming at the problem of pressure closed-loop control in multi-channel hydraulic testing system, the principle model of multi-channel hydraulic testing system is established Based on the principle of hydraulic testing system. Based on the AMESim platform, the performance of the system pressure and the pressure control of the proportional pressure regulating valve were simulated. Based on the AMESim model, the response characteristics of the water pressure testing system, the relationship between the system pressure control precision and the parameters of different components are analyzed, such as the air filters with different parameters, the pipes with different aperture and the other components of different parameters. The pressure response curve of the pressure control link of the pressure proportional valve and the pressure of the hydraulic cylinder under the pressure of the hydraulic cylinder under the different PID parameters is analyzed and compared. It is concluded that the key of the matching PID parameter design is the control system of the water pressure testing system.