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Article Navigation> JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY> 2013> 22(1): 12-19
MA Ming, SUN Bo, WANG Jian-zhong, SHI Jia-dong. Multi-objective optimization design for leg mechanism of hydraulic-actuated quadruped robot[J]. JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2013, 22(1): 12-19.
Citation: MA Ming, SUN Bo, WANG Jian-zhong, SHI Jia-dong. Multi-objective optimization design for leg mechanism of hydraulic-actuated quadruped robot[J].JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2013, 22(1): 12-19.
shu

Multi-objective optimization design for leg mechanism of hydraulic-actuated quadruped robot

  • 1.

    State Key Laboratoryof Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China

  • 2.

    State Key Laboratoryof Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China;Beijing Institute of Special Electromechanical, Beijing 100012, China

  • Received Date:2012-03-26
    Abstract
  • In order to improve the robot's abilities of bearing heavy burdens and transporting in complex terrains, the multi-objective optimization design for leg mechanism of the quadruped robot with hydraulic actuated is studied in this paper. The kinematics and dynamics of the robot are analyzed and the two-dimensional linear inverted pendulum model is adopted in planning the trajectories of joints. Then the mathematical model of valve-controlled asymmetric cylinder and control model of single leg are proposed respectively. In the end, NSGA-II algorithm is used to achieve the multi-objective optimization design of parameters concerning single leg mechanism and PD torque control. The results prove that the optimized leg mechanism can significantly reduce the required maximum power of hydraulic system, thus decrease its own weight and lead to the obtaining of good dynamic performance.
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    • References (9)
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