1. Ph.D. Candidate, School of Aeronautic Science and Engineering, Beihang Univ., No. 37th, XueYuan Rd., Beijing 100191, China.
2. Lecturer, School of Aeronautic Science and Engineering, Beihang Univ., No. 37th, XueYuan Rd., Beijing 100191, China (corresponding author).
3. Dept. of Mechanical Engineering, Technical Univ. of Denmark, Nils Koppels Allé, B403, 2800 Kgs., Lyngby, Denmark.
4. Senior Engineer, Second Institute of China Aerospace Science and Technology Corporation, No. 52th, YongDing Rd., Beijing 100854, China.
5. Professor, School of Aeronautic Science and Engineering, Beihang Univ., No. 37th, XueYuan Rd., Beijing 100191, China.