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首页> 外文期刊>Proceedings of the institution of mechanical engineers >The resonance effect induced by the variable compliance vibration for an elastic rotor supported by roller bearings
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The resonance effect induced by the variable compliance vibration for an elastic rotor supported by roller bearings

机译：滚动轴承支撑的弹性转子的可变柔度振动引起的共振效应

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摘要

Owing to orbital rotation of the rolling element complement and depending on the state of bearing preload, the dynamic stiffness of bearing alters. This causes a vibration at a frequency equivalent to the number of rolling elements multiplied by the cage speed named as variable compliance vibration, which could be much larger than the system nature frequencies. In this paper, the resonance effect induced by the variable compliance vibration of an elastic rotor is discussed. Simplified bearing and the Timoshenko elements are employed to model the system, and then cascade plots and frequency spectrums are mainly obtained as results with two types of resonance in low-speed region. Firstly, resonance of variable compliance frequency would occur while the variable compliance frequency meets the system nature frequencies, which are different in the horizontal and vertical directions. Secondly, resonance of sub-harmonic frequencies which are close to the system nature frequencies would occur while the variable compliance frequency meets the sum of system nature frequencies.
机译：由于滚动元件的旋转，根据轴承的预紧状态，轴承的动态刚度发生变化。这会导致振动，其频率等于滚动元件数量乘以保持架速度（称为可变柔度振动），该频率可能比系统固有频率大得多。本文讨论了弹性转子可变柔度振动引起的共振效应。使用简化的轴承和Timoshenko元素对系统进行建模，然后主要获得级联图和频谱图，作为低速区域中两种共振类型的结果。首先，在可变顺应性频率满足系统固有频率的同时，可变顺应性频率会发生共振，该频率在水平和垂直方向上是不同的。其次，当可变顺应频率满足系统固有频率之和时，会发生接近于系统固有频率的次谐波频率的共振。

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  • 作者

    Jun Yi; Heng Liu; Fengtao Wang; Meng Li; Minqing Jing;

  • 作者单位

    State Key Lab for Strength and Vibration of Mechanical Structures, Xi'an Jiaotong University, PR China, Key Laboratory of Education Ministry for Modern Design and Rotor-Bearing System, Xi'an Jiaotong University, PR China;

    State Key Lab for Strength and Vibration of Mechanical Structures, Xi'an Jiaotong University, PR China, Key Laboratory of Education Ministry for Modern Design and Rotor-Bearing System, Xi'an Jiaotong University, PR China, School of Mechanical Engineering, Xi'an Jiaotong University, Xianning West Road, Xi'an, Shaanxi, 710049, PR China;

    State Key Lab for Strength and Vibration of Mechanical Structures, Xi'an Jiaotong University, PR China, Key Laboratory of Education Ministry for Modern Design and Rotor-Bearing System, Xi'an Jiaotong University, PR China;

    State Key Lab for Strength and Vibration of Mechanical Structures, Xi'an Jiaotong University, PR China, Key Laboratory of Education Ministry for Modern Design and Rotor-Bearing System, Xi'an Jiaotong University, PR China;

    State Key Lab for Strength and Vibration of Mechanical Structures, Xi'an Jiaotong University, PR China, Key Laboratory of Education Ministry for Modern Design and Rotor-Bearing System, Xi'an Jiaotong University, PR China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Resonance; roller bearing; variable compliance effect; elastic rotor; roller bearing-rotor system;

    机译：谐振;滚子轴承;可变的遵从效果;弹性转子滚子轴承-转子系统;

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