文章摘要
杨志安,王思奇,李高峰.手持振动机械与手臂耦合系统主共振研究[J].唐山学院学报,2021,34(3):1-5,21
手持振动机械与手臂耦合系统主共振研究
Research on the Primary Resonance of the Hand-Held Vibrating Machine and the Arm Coupling System
  
DOI:10.16160/j.cnki.tsxyxb.2021.03.001
中文关键词: 手持振动机械  手臂  耦合系统  主共振  多尺度法
英文关键词: hand-held vibrating machine  the arm  coupling system  primary resonance  muti-scale method
基金项目:
作者单位
杨志安 唐山学院 唐山市结构与振动工程重点实验室 
王思奇 华北理工大学 机械工程学院, 河北 唐山 063210 
李高峰 唐山学院 基础部, 河北 唐山 063000 
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中文摘要:
      为研究振动对人体的影响,以人体手臂系统为研究对象,分析振动机械对人体手臂系统的影响。建立手持振动机械与人体手臂耦合系统的非线性振动方程,用多尺度法得到手持振动机械与人体手臂耦合振动系统主共振的一次近似解,并得出系统的时间响应曲线和相图与Simulink仿真得出的图作对比,发现大致相同。讨论了系统参数对主共振幅频响应曲线的影响:增大系统激励力,系统振幅和共振区域增大;增大系统阻尼,系统振幅减小。
英文摘要:
      In order to study the influence of vibration on the human body, the human arm system is taken as the research object and the influence of vibrating machinery on the system is analyzed in this paper. During the study, the nonlinear vibration equation of the hand-held vibrating machine and the human arm coupling system is established and the multi-scale method is used to obtain the first-order approximate solution to the primary resonance of the coupling vibration system. Then the time response curve and phase diagram of the system obtained from the equation and the figures from Simulink simulation are compared,which shows their rough sameness. The influence of the system parameters on the primary resonance frequency response curve is found that the system amplitude and resonance area increases with the increase of the excitation force, and the system amplitude decreases with the increase of the damping.
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