轨道车辆转向架综合参数检测台电液伺服系统动态仿真  

Dynamical Simulation on Electro-hydraulic Servo System of Comprehensive Parameters Test Bed for Bogie of Railway Vehicle

作　　者：蓝志坤[1,2] 苏建[1] 张栋林[1] 蓝志环[3] 

机构地区：[1]吉林大学交通学院,吉林长春130022 [2]长春大学车辆工程学院,吉林长春130012 [3]空军航空大学航空军械工程系,吉林长春130022

出　　处：《机床与液压》2011年第17期98-100,共3页Machine Tool & Hydraulics

摘　　要：针对轨道车辆转向架综合参数检测台定位精度高、响应速度快和实时跟踪的性能要求,建立具有弹性负载的电液伺服系统数学模型。对具有弹性负载的电液伺服系统数学模型中存在的非线性因数进行归一化处理,使其既能体现该电液伺服系统的特性,又方便数学建模。在此电液伺服系统中,以阀控缸对称式液压系统为研究对象,对其进行精确定位和实时跟踪控制。利用Simulink对模型进行动态仿真,结果表明:所建立的数学模型能够高精度地实现电液伺服的控制,满足轨道车辆综合参数检测台实时控制的要求。并详细讨论了影响电液伺服系统动态特性的主要因素。Dynamical mathematic model of the electro-hydraulic servo system with elastic load was established according to performance requirements of accurately positioning, fast response and real-time trace of electro-hydraulic servo system in railway vehicle bogie parameters test system. By unitary processing to the nonlinear factors existed in the mathematic model of electro-hydraulic servo system with elastic load, the model could exhibit characteristics of the system and modeling was convenient. In the electro-hydraulic servo system, taking valve-controlled cylinder as research object, it was positioned accurately and controlled real-time in trace. Dynamical simulation was made by SIMULINK. The simulation results show high precision servo control can be obtained and the need of real-time control on the railway vehicle bogie parameters test system is met. The key factors affecting the dynamical characteristics of the electro-hydraulic servo system were discussed.

关 键 词：转向架 电液伺服系统 动态仿真 实时控制 

分 类 号：U260.146[机械工程—车辆工程]