介绍了高空作业车臂架举升液压系统的组成与工作原理,针对举升液压缸因负载变化运行不稳的问题,利用AMESim软件建立举升系统的仿真模型,采用压力补偿技术对液压系统进行优化,仿真分析了有压力补偿和无压力补偿情况下的系统动态曲线,结果表明,采用压力补偿技术能有效保障液压缸的平稳运行.%The paper introduces the composition and working principle of lifting hydraulic system with aerial working arm. To solve the problem of unstable operation of lifting hydraulic cylinder due to changes in load, simulation model of the lifting system is established by using AMESim software. Pressure compensation technology is used to optimize the hydraulic system, and simulation analysis is conducted on its dynamic curves with and without pressure compensation. The results show that the pressure compensation technology can effectively guarantee smooth operation of hydraulic cylinder.
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