1. Merchant Marine College, Shanghai Maritime University, No. 1550 Haigang Dadao, Pudong New District Shanghai 201306, China e-mail:
2. China Shipbuilding Power Engineering Institute Co., Ltd., Shanghai 200120, China
3. Merchant Marine College, Shanghai Maritime University, Shanghai 201306, China
4. Kunshan Jiangjin Machinery Co. Ltd., Kunshan 215331, China