基于AMESim/MATLAB的四缸同步回路仿真研究
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摘要
伺服四缸液压同步回路是大型钢板轧机、沙模铸造机液压系统中的关键单元。利用Matlab和AMESim两款仿真软件各自的优点,通过接口的设置,分别建立了伺服阀控四缸同步回路的液压系统及其控制系统模型。通过合理的将液压缸位移反馈到伺服阀的控制输入端,经过优化得到了最佳的反馈增益。液压缸达到了理想的速度、位移、加速度同步效果。为大型同步液压系统建模仿真提供了一种新的研究策略。
Four cylinders synchronous circuit is the key unit in the hydraulic system of the large steel plate mill and sand mold casting machine. By taking full advantage of the simulation software Matlab and AMESim, through the interface set, a model of hydraulic system and its control system for a four cylinders synchronous circuit is respectively set up. Through synchronous cylinder's displacement feedback to the control input terminal of the servo valve and optimize feedback, a reasonable gain is obtained. The desirable synchronous speed, displacement, acceleration of hydraulic cylinders are achieved. It provides a new research strategy for large synchronous hydraulic system modeling and simulation.
Four cylinders synchronous circuit is the key unit in the hydraulic system of the large steel plate mill and sand mold casting machine. By taking full advantage of the simulation software Matlab and AMESim, through the interface set, a model of hydraulic system and its control system for a four cylinders synchronous circuit is respectively set up. Through synchronous cylinder's displacement feedback to the control input terminal of the servo valve and optimize feedback, a reasonable gain is obtained. The desirable synchronous speed, displacement, acceleration of hydraulic cylinders are achieved. It provides a new research strategy for large synchronous hydraulic system modeling and simulation.
引文
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[6]梁全,谢基晨.液压系统计算机仿真进阶教程[M].北京:机械工业出版社,2016.
[7]刘志俭,等.Matlab外部程序接口[M].北京:科学出版社,2002.
[8]邢科礼,冯玉,金侠杰,等.基于AMESim/Matlab的电液伺服控制系统的仿真研究[J].机床与液压,2004,(10):57-58.
[9]刘英杰,徐兵,杨华勇,等.电液比例负载口独立控制系统压力流量控制策略[J].农业机械学报,2010,(5):182-187.
[2]王军政,赵江波,汪首坤.电液伺服技术的发展与展望[J].液压与气动,2014,(5):1-12.
[3]Wang tao,Wang Qingfeng,Efficiency analysis and evaluation of energy-saving pressure-compensated circuit for hybrid hydraulic excavator.SAE Int.J.Commer.Veh.,22010,(2):264-273.
[4]牛越胜,张圣峰,徐兵,等.LUDV多路阀中压力补偿阀的仿真分析[J].机电工程,2011,(8):914-917,923.
[5]付永领,齐海涛.LMS Image.Lab.AMESIM系统建模和仿真[M].北京:北京航空航天大学出版社,2011.
[6]梁全,谢基晨.液压系统计算机仿真进阶教程[M].北京:机械工业出版社,2016.
[7]刘志俭,等.Matlab外部程序接口[M].北京:科学出版社,2002.
[8]邢科礼,冯玉,金侠杰,等.基于AMESim/Matlab的电液伺服控制系统的仿真研究[J].机床与液压,2004,(10):57-58.
[9]刘英杰,徐兵,杨华勇,等.电液比例负载口独立控制系统压力流量控制策略[J].农业机械学报,2010,(5):182-187.