1. College of Mechanical and Electrical Engineering China University of Mining and Technology Xuzhou P. R. China
2. Jiangsu Province and Education Ministry Co‐sponsored Collaborative Innovation Center of Intelligent Mining Equipment China University of Mining and Technology Xuzhou P. R. China
3. School of Mechanical and Electronic Engineering Nanjing Forestry University Nanjing P. R. China
4. School of Mechanical Engineering Jiangsu Key Laboratory for Design and Manufacture of Micro‐Nano Biomedical Instruments Southeast University Nanjing P. R. China