1. Shanghai Jinshun Multibody Science and Technology Co. Ltd, Shanghai, P. R. China
2. School of Mechatronics Engineering and Automation, Shanghai University, Shanghai, P. R. China
3. Shanghai Jinshun Electromechanical Technology Co. Ltd, Shanghai, P. R. China
4. Zhejiang Hejin Rollers Science and Technology Co. Ltd, Huzhou, P. R. China