1. School of Mechanical Engineering, Lanzhou Jiaotong University, Lanzhou, People's Republic of China
2. Robotics Institute, Lanzhou Jiaotong University, Lanzhou, People's Republic of China
3. State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian, People's Republic of China
4. Hebei Key Laboratory of Trans-Media Aerial Underwater Vehicle, North China Institute of Aerospace Engineering, Langfang, People's Republic of China