1. Center for Advanced Jet Engineering Technology (CaJET) School of Mechanical Engineering Shandong University Jinan 250061 P. R. China
2. Key Laboratory of High-efficiency and Clean Mechanical Manufacture (Shandong University) Ministry of Education Jinan 250061 P. R. China
3. School of Mechanical Engineering Yanshan University Qinhuangdao 066004 P. R. China
4. School of Construction Machinery Shandong Jiaotong University Jinan 250357 P. R. China