1. College of Aerospace Engineering, Nanjing university of Aeronautics and Astronautics,Nanjing,P. R. China,210016
2. No.703 Research Institute of China Shipbuilding Industry Corporation,Harbin,P. R. China,150078
3. Nanjing university of Aeronautics and Astronautics,State Key Laboratory of Mechanics and Control for Aerospace Structures,Nanjing,P. R. China,210016