1. School of Naval Architecture, Ocean and Civil Engineering Shanghai Jiao Tong University Shanghai 200030 China
2. School of Naval Architecture and Ocean Engineering Jiangsu University of Science and Technology Zhenjiang 212003 China
3. Hadal Science and Technology Research Center Shanghai Ocean University Shanghai 201306 China
4. Nonlinear Analysis and Applied Mathematics (NAAM) Research Group, Faculty of Science King Abdulaziz University Jeddah 21589 Saudi Arabia
5. Department of Mathematics Quaid‐i‐Azam University Islamabad 45320 Pakistan