1. School of Automotive Engineering, State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian 116024, China
2. School of Mechanical Engineering, Dalian University, Dalian116622, China
3. Panasonic Appliances Compressor (Dalian) Co., Ltd., Dalian 116033, China
4. School of Mechanical Engineering, Dalian University of Technology, Dalian116024, China