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力学与实践 ›› 2019, Vol. 41 ›› Issue (4): 436-441.doi: 10.6052/1000-0879-19-072

• 应用研究 • 上一篇    下一篇

摩擦力对偏心转子底座运动的影响

尤明庆1)   

  1. 河南理工大学能源科学与工程学院,河南焦作 454010
  • 发布日期:2019-08-26
  • 通讯作者: 1) E-mail: youmq@hpu.edu.cn

INFLUENCE OF FRICTION ON THE MOTION OF BASE WITH AN ECCENTRIC ROTOR

YOU Mingqing1)   

  1. School of Energy Science and Engineering, Henan Polytechnic University, Jiaozuo 454010, Henan, China
  • Published:2019-08-26

摘要: 偏心转子惯性力引起的底座运动受到地面摩擦的影响,与光滑情形的理论结果存在定性差异。转子逆时针匀速旋转的惯性力若小于构件总重,则底座随摩擦因子增加而出现连续、一次停顿和两次停顿的振动及完全静止的4种状态。因惯性力对正压力及摩擦力的影响,底座在连续及一次停顿的振动时右向位移较大;而底座跳起时如``蛤蟆夯''则整体向左移动。

关键词: 偏心转子, 摩擦, 惯性力, 蛤蟆夯, 振动

Abstract: The motion by the inertia force of an eccentric rotor is affected by the ground friction, as is different from the theoretical results of the smooth case. If the inertia force of the rotor rotating in the counter-clockwise direction uniformly is less than the total weight of the component, the base will be in four states with the increase of the friction factor: the continuous state, the one-stop state, the two-stop vibration state and the completely static state. Due to the influence of inertia force on the normal pressure and the friction force as well, the displacement of the base to the right direction is larger than that to the left direction, when the vibration is continuous and stopping for one time. When the base of the eccentric rotor jumps up, it moves to the left just like a ``frog rammer''.

Key words: eccentric rotor, friction, inertia force, frog rammer, vibration

中图分类号: 

  • O311.1