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Suppression of Quadruped Robot Body Disturbance by Virtual Spring-Damping Model

Author

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  • JingYe He
  • JunPeng Shao
  • BingWei Gao
  • BingYi Miao
  • Xuan Shao
  • Carlos Aguilar-Ibanez

Abstract

The quadruped robot is subject to self and external interference during the running process. In this paper, in order to improve the stability of the quadruped robot, a disturbance suppression strategy based on the kinematic model and the virtual model is proposed. Through the whole-body kinematics modeling of the body, the cause of the disturbance is analyzed. At the same time, two spring-damping virtual elements are introduced on the body. The virtual force generated by the spring-damping model is according to the displacement and speed of the CoM (center of mass) when the robot is moving. By simulating the tort gait of the robot, sorting out the data obtained from the experiment, and drawing a comparison curve with the experiment results of the no spring-damping virtual element under the same conditions, it is proved that the method proposed in this paper has a significant effect on maintaining the dynamic stability of the body, and the actual trajectory is not different from the theoretical trajectory.

Suggested Citation

  • JingYe He & JunPeng Shao & BingWei Gao & BingYi Miao & Xuan Shao & Carlos Aguilar-Ibanez, 2022. "Suppression of Quadruped Robot Body Disturbance by Virtual Spring-Damping Model," Complexity, Hindawi, vol. 2022, pages 1-12, March.
    • Handle: RePEc:hin:complx:4510678
    DOI: 10.1155/2022/4510678
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