Load Sharing Performance of the Main Drive System in the Shield Machine and Improvement of Control Method  

作　　者：Ran Liu Weidong Li Jianzhong Sun Zhengchang Jiao 

机构地区：[1]School of Electrical and Electronics Engineering, Dalian University of Technology, Dalian 116023, Liaoning Province, China [2]Keya College, Shenyang University of Chemical Technology, Shenyang 110167, Liaoning Province, China

出　　处：《Journal of Mechanics Engineering and Automation》2012年第9期563-567,共5页机械工程与自动化（英文版）

摘　　要：Shield machine is the major technical equipment badly in need in national infrastructure construction. The service conditions of shield machine are extremely complex. The driving interface load fluctuation caused by geological environment changes and multi field coupling of stress field may lead into imbalance of redundant drive motors output torque in main driving system. Therefore, the shield machine driving synchronous control is one of the key technologies of shield machine. This paper is in view of the shield machine main driving synchronous control, achieving the system＇s adaptive load sharing. From the point of view of cutterhead load changes, nonlinear factors of mechanical transmission mechanism and the control system synchronization performance, the authors analyze the load sharing performance of shield machine main drive system in the event of load mutation. The paper proposes a data-driven synchronized control method applicable to the main drive system. The effectiveness of the method is verified through simulation and experimental methods. The new method can make the system synchronization error greatly reduced, thus it can effectively adapt to load mutation, and reduce shaft broken accident.

关 键 词：Shield machine cutterhead load sharing MULTI-MOTOR synchronized control. 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置] TS43[自动化与计算机技术—控制科学与工程]