【作者】 齐潘国； 叶正茂； 张辉； 韩俊伟； 李洪人；

【Author】 Qi Panguo Ye Zhengmao Zhang Hui Han Junwei Li Hongren (Institute of Electro hydraulic servo Simulation and Test system,Harbin Institute of Technology,Harbin 150001)

【机构】 哈尔滨工业大学电液伺服仿真及试验系统研究所；

【摘要】 本文建立了二次调节模拟加载系统的功率键合图数学模型,利用模型对系统特性进行了仿真分析,仿真结果与试验结果基本一致,说明键合图数学模型有效。仿真及试验均表明,系统稳态控制精度较高,但驱动单元与加载单元存在耦合。影响了系统的动态特性。针对系统的耦合问题,采用转矩补偿解耦方法进行了解耦试验。试验结果表明,该方法有较好的解耦效果。本文的研究成果已成功应用于实际的基于二次调节的专用车桥加载试验系统中,系统的性能得到进一步提高。更多还原

【Abstract】 The power bond graphs model of the Secondary Control loading system is built up, followed by simulating analysis based on this model. The experiment result validates this model with compared to simulating result. Both simulation and experiment indicate that this system could be controlled with a high static precision, but coupling between drive unit and loading unit handicaps the dynamic performance of the system. Torque compensation decoupling method adopted in this paper proved to be much effective by decoupling experiment, which has been successfully applied to the special transmission bridge loading test bed based on secondary control, and the system performance is improved farther in result更多还原