1. School of Mechatronics Engineering and Automation Institution Shanghai University Shanghai 200444 China
2. School of Mechanical and Energy Engineering Shanghai Technical Institute of Electronics & Information Shanghai 201411 China
3. Shanghai Mifang Electronic Technology Co., LTD Shanghai 201615 China
4. Institute of Flexible Electronics Technology of Tsinghua University, Zhejiang Jiaxing 314000 China
5. Department of Mechanical and Materials Engineering University of Western Ontario London Ontario N6 A 5B9 Canada