Study on Negative-stiffness Absorbing Vibration Performance for Rest Tremor of Human Arm

被引：0
|
作者：
Liu H. [1 ,2 ]
Liu Q. [1 ]
Han D. [1 ]
Jiang Y. [3 ,4 ,5 ]
Wu H. [6 ]
机构：
[1] School of Mechanical Engineering, University of Science and Technology Beijing, Beijing
[2] Shunde Innovation School, University of Science and Technology Beijing, Foshan
[3] Peking University Third Hospital, Department of Orthopaedics, Beijing
[4] Engineering Research Center of Bone and Joint Precision Medicine, Beijing
[5] Beijing Key Laboratory of Spinal Disease Research, Beijing
[6] Nanjing First Hospital, Nanjing Medical University, Nanjing
来源：
Hunan Daxue Xuebao/Journal of Hunan University Natural Sciences | 2024年 / 51卷 / 02期
关键词：
negative-stiffness dynamic vibration absorber; parameter optimization; rest tremor; vibration control;
D O I：
10.16339/j.cnki.hdxbzkb.2024161
中图分类号：
学科分类号：
摘要：
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. © 2024 Hunan University. All rights reserved.
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页码：227 / 235
页数：8
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