1. School of Mechanical and Electrical Engineering, Guilin University of Electronic Technology, Guilin 541004, China
2. Guangxi Engineering Technology Research Center of Ship Digital Design and Advanced Manufacturing, Beibu Gulf University, Qinzhou 535011, China
3. Intelligentized Robotic Welding Technology Laboratory, Shanghai Jiao Tong University, Shanghai 200240, China
4. Faculty of Education, Saitama University, Saitama City 338-8570, Japan