1. School of Control Science and Engineering Shandong University Jinan China
2. Engineering Research Center of Intelligent Unmanned System Ministry of Education Jinan China
3. Shandong Electrical Engineering & Equipment Group Co. Ltd. Jinan China
4. School of Mechanical Engineering Shandong University Jinan China
5. Key Laboratory of High‐efficiency and Clean Mechanical Manufacture at Shandong University Ministry of Education Shandong University Shandong China
6. Beijing Advanced Innovation Center for Intelligent Robots and Systems Beijing Institute of Technology Beijing China