School of Mechanical Engineering and Automation;
Beijing University of Aeronautics and Astronautics;
Beijing System Design Institute of Electro-Mechanic Engineering;
China Aerospace Science and Industry Corporation Limited;
Department of Mechanical Engineering;
Tsinghua University;
State Key Laboratory of Virtual Reality and Systems;
Beijing University of Aeronautics and Astronautics;
Landing; gear; Soft; landing; Sensitivity; analysis; Response; surfaces; Hierarchical; optimization;