Sun Peng, Gu Yunfei, Mao Haoyu, Chen Zhao, Li Yanbiao
College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310023, China.
Key Laboratory of Special Purpose Equipment and Advanced Processing Technology, Ministry of Education and Zhejiang Province, Zhejiang University of Technology, Hangzhou 310023, China.
Biomimetics (Basel). 2023 Jun 15;8(2):258. doi: 10.3390/biomimetics8020258.
A kinematics analysis of a new hybrid mechanical leg suitable for bipedal robots was carried out and the gait of the robot walking on flat ground was planned. Firstly, the kinematics of the hybrid mechanical leg were analyzed and the applicable relevant models were established. Secondly, based on the preliminary motion requirements, the inverted pendulum model was used to divide the robot walking into three stages for gait planning: mid-step, start and stop. In the three stages of robot walking, the forward and lateral robot centroid motion trajectories and the swinging leg joint trajectories were calculated. Finally, dynamic simulation software was used to simulate the virtual prototype of the robot, achieving its stable walking on flat ground in the virtual environment, and verifying the feasibility of the mechanism design and gait planning. This study provides a reference for the gait planning of hybrid mechanical legged bipedal robots and lays the foundation for further research on the robots involved in this thesis.
对一种适用于双足机器人的新型混合机械腿进行了运动学分析,并规划了机器人在平地上行走的步态。首先,分析了混合机械腿的运动学并建立了适用的相关模型。其次,基于初步的运动要求,采用倒立摆模型将机器人行走分为三个阶段进行步态规划:步中、启动和停止。在机器人行走的三个阶段,计算了机器人质心的前后和横向运动轨迹以及摆动腿的关节轨迹。最后,利用动态仿真软件对机器人的虚拟样机进行了仿真,实现了其在虚拟环境中在平地上的稳定行走,并验证了机构设计和步态规划的可行性。本研究为混合机械腿双足机器人的步态规划提供了参考,为本文所涉及机器人的进一步研究奠定了基础。