摘要
建立新型双足模型,提出同时考虑腿部回摆和外力做功的综合控制机制来保持平稳跑步运动。研究了人体跑步的力学特性、控制特征及稳定性,并对跑步下结构动力响应进行分析。结果表明:新型双足跑步模型能够模拟完整的跑步过程;施加的综合控制机制可自动调整运动状态并补偿能量损失,提高双足模型跑步时的稳定范围并保证运动稳定;跑步状态下的人与结构相互作用较弱。
Based on the new bipedal running model,a new feedback mechanism that included swing-leg retraction and control force is proposed to maintain stable running.The mechanical characteristics,control mechanism and stability in running are studied.Also,the dynamic response of a bridge under the new bipedal running model is analyzed.The results show that the new bipedal running model can reproduce a periodic running cycle.The new feedback mechanism allows the running model to automatically adapt the motion state and compensate for energy dissipated.The stability of the running model is significantly improved,and the human-structure dynamic interaction is weak when a human runs.
出处
《振动与冲击》
EI
CSCD
北大核心
2016年第12期28-34,共7页
Journal of Vibration and Shock
基金
国家自然科学基金优秀青年基金项目(51422801)
国家自然科学基金"重点"项目(50938008)
新世纪优秀人才奖励计划(NCET-11-0571)
中央高校基本科研业务费专项资金资助(2012JBM007
2012YJS078)
关键词
生物力学
双足模型
控制机制
稳定性
biomechanics
bipedal model
feedback mechanism
stability
