1 Key Lab of Contemporary Design and Integrated Manufacturing Technology (Northwestern Polytechnical University), Ministry of Education, Xi’an 710072, China
Supported by the National Natural Science Foundation of China (Nos. 51675437 and 51605389), Aeronautical Science Fund of China (No. 2014ZE53059), Natural Science Basic Research Plan in Shaanxi Province of China (No. 2016JM5003), Fundamental Research Funds for the Central Universities of China (No.3102014KYJD022), and the Graduate Starting Seed Fund of Northwestern Polytechnical University (Nos. Z2016075 and Z2016081).