1. Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu 610213, China
2. Chongqing Research Institute, China Coal Technology Engineering Group, Chongqing 400039, China
3. School of Mechanical Engineering, Chongqing Technology and Business University, 400067, China
4. State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing 400044, China