湖南大学学报（自然科学版）2024，Vol.51Issue(2)：227-235,9.DOI:10.16339/j.cnki.hdxbzkb.2024161
人体手臂静止性震颤的负刚度吸振效果研究
Study on Negative-stiffness Absorbing Vibration Performance for Rest Tremor of Human Arm
摘要
Abstract
In this paper,a dynamic vibration absorber with negative stiffness(DVA-NS)is proposed to control the rest tremor of human arm in order to effectively reduce the dynamic response transmitted to the forearm.Firstly,the coupling dynamic model of human arm with DVA-NS is established.Then,the amplitude-frequency response expressions of each joint positions are derived,and the optimal design parameters of the DVA-NS are determined by using the sequential quadratic programming algorithm.On this basis,the above optimal design parameters are used to calculate the dynamic response curves under sinusoidal and random excitations,respectively.For ease of comparison,the dynamic responses of the coupling dynamic systems without the DVA-NS and with traditional linear dynamic vibration absorber(LDVA)are also presented,respectively.The calculation results show that the suppression effect on dynamic responses of different joints induced by the rest tremor of human arm by using the DVA-NS is significantly better than that of traditional LDVA.关键词
负刚度动力吸振器/静止性震颤/参数优化/振动控制Key words
negative-stiffness dynamic vibration absorber/rest tremor/parameter optimization/vibration control分类
机械制造引用本文复制引用
刘海平,刘庆生,韩东航,姜宇,吴鹤鸣..人体手臂静止性震颤的负刚度吸振效果研究[J].湖南大学学报（自然科学版）,2024,51(2):227-235,9.基金项目
北京大学第三医院创新转化基金及海淀转化专项(BYSYZHKC2022101),Innovation Transformation Fund of Peking University Third Hospital and Transformation Projects of Haidian District(BYSYZHKC2022101) （BYSYZHKC2022101）
佛山市科技创新专项资金项目(BK22BE021),Foshan Science and Technology Innovation Special Fund Project(BK22BE021) （BK22BE021）
