山东大学学报 (工学版) ›› 2022, Vol. 52 ›› Issue (4): 20-28.doi: 10.6040/j.issn.1672-3961.0.2022.106
• • 上一篇
刘斌1,张萌2
LIU Bin1, ZHANG Meng2
摘要： 针对腿足式机器人的腿部运动模式,提出一种变刚度落地缓冲策略,对机器人躯干质心处预期的冲击进行规划,针对不同落地阶段采用不同控制方式。在缓冲阶段,通过躯干加速度规划的方式计算预期足底力,将该力映射到关节空间。在其他阶段,采用比例微分(proportional differential,PD)控制与滑模控制(sliding mode control, SMC)相结合的方式,保证运动的快速性和稳定性,并用李雅普诺夫第二法证明稳定性。试验表明,机器人质心在1.65 m处下落,该方法可使足地冲击小于1.7g。此冲击力与人上台阶的冲击力相近,说明该方法可起到良好的缓冲效果。
中图分类号:
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