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本文在建立液压电梯系统模型的基础上，通过仿真和试验发现摩擦非线性是影响液压电梯起动平顺性的根本原因，提出了有效的改善措施。
Based on the establishment of the model of hydraulic elevator system, this paper found that the friction nonlinearity is the basic reason that affects the hydraulic elevator lift smoothness through simulation and experiment, and puts forward effective improvement measures.