1. School of Aeronautics, Northwestern Polytechnical Univ., Xi’an 710072, China (corresponding author). ORCID: .
2. Professor, School of Aeronautics, Northwestern Polytechnical Univ., Xi’an 710072, China.
3. School of Aeronautics, Northwestern Polytechnical Univ., Xi’an 710072, China.
4. Dept. of Civil Engineering, Military Technical College, Cairo 11435, Egypt.