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农机用负载敏感系统故障分析及优化仿真研究

Fault Analysis and Optimization Simulation of Load Sensing System for Agricultural Machinery
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摘要 阐述了农机常用的LS及LUDV负载敏感液压系统的工作原理,利用AMESim仿真软件建立其仿真模型,对两者动态特性及故障现象进行仿真分析。针对LUDV负载敏感液压系统缺点,设计了一种新的支路并联压力切断阀的LUDV负载敏感液压改进系统。仿真结果表明:改进后的LUDV负载敏感系统,能够有效解决系统工作支路卡死或者运动到行程终点时系统控制功能失效的问题。 With the analysis on current agricultural machinery common LS and the working principle of the load sensitive LUDV hydraulic system and by AMESim simulation software,simulation model is established,and simulation analysis on dynamic characteristics and fault phenomenon are implemented.In regard to the load sensitive LUDV hydraulic system fault,a branch parallel pressure cut-off valve loaded with sensitive LUDV hydraulic system is designed.The simulation results show that the improved LUDV load sensing system can effectively solve the problems of system work branch stuck or system control function failure when moving to the end of the trip.
作者 张绍军 ZHANG Shaojun(Xinjiang Agricultural Vocational and Technical College,Changji 831100,China)
出处 《机械制造与自动化》 2021年第4期142-145,共4页 Machine Building & Automation
关键词 农业机械 液压系统 AMESIM 负载敏感 故障分析 agricultural machinery hydraulicsystem AMESim load sensing failure analysis
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