Department of Precision Instruments and Mechanology, School of Mechanical Engineering, Tsinghua University, Beijing 100084, China;
Department of Precision Instruments and Mechanology, School of Mechanical Engineering, Tsinghua University, Beijing 100084, China;
Department of Precision Instruments and Mechanology, School of Mechanical Engineering, Tsinghua University, Beijing 100084, China;
optimal configuration; minimal compliance; nonlinear constrained optimization; optimal value function;