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首页> 外文期刊>Journal of the Brazilian Society of Mechanical Sciences and Engineering >Investigation of a rotor- bearing system with bearing clearances and hertz contact by using a harmonic balance method
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Investigation of a rotor- bearing system with bearing clearances and hertz contact by using a harmonic balance method

机译：利用谐波平衡法研究具有轴承间隙和赫兹接触的转子轴承系统

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摘要

This work is about the steady state vibration of a rotor bearing system. The rolling bearings are modeled as two degrees of freedom elements where the kinematics of the rolling elements is considered, so are the internal clearance and the Hertz contact nonlinearity. The steady state solution of the system is achieved by the harmonic balance method, validated by a numerical integration using a three-point-centered finite difference scheme. The number of harmonics employed in the harmonic balance method is examined to find the satisfactory quantity of harmonics that can describe the system dynamics. The contact regimes in the rolling elements are also explored.
机译：这项工作是关于转子轴承系统的稳态振动。滚动轴承被建模为两个自由度元素，其中考虑了滚动元件的运动学，内部游隙和赫兹接触非线性也是如此。系统的稳态解是通过谐波平衡法实现的，该方法通过使用三点为中心的有限差分方案的数值积分得到了验证。检查谐波平衡方法中采用的谐波数量，以找到可以描述系统动力学的令人满意的谐波数量。还探讨了滚动体中的接触方式。

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