[1]School of Mechanical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China;
[2]Wuxi Pneumatic Technology Research Institute Co. Ltd., Wuxi 214072, China;
[3]State Key Laboratory of Fluid Power Transmission and Control, Zhejiang University, Hangzhou 310027, China;
[4]Boyan Pneumatic Technology Institute ofNingbo, Fenghua 315500, China;
[5]Precision and Intelligence Laboratory, Tokyo Institute of Technology, Yokohama 226-8503, Japan;