A vibration model of a flexible rotor-bearing system considering the defect in a double-row cylindrical roller bearing

IF 1.9 4区工程技术 Q3 ENGINEERING, MECHANICAL

Proceedings of the Institution of Mechanical Engineers Part K-Journal of Multi-Body Dynamics Pub Date : 2023-06-08 DOI:10.1177/14644193231179858

J. Liu, Wanli Fancheng, Xinbin Li, S. Ding

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引用次数: 0

Abstract

Vibration analysis of double-row cylindrical roller bearing systems is useful for controlling the vibrations of rotating transmission systems. However, most current works only formulated the rotor system with single-row cylindrical roller bearings. Moreover, the vibration characteristics of the rotor system with defective double-row cylindrical roller bearings are not clearly. To overcome this problem, a vibration model of a flexible rotor system with the defective double-row cylindrical roller bearing is proposed in this work. The effects of the speed and defect on the vibrations of flexible rotor systems are studied. The vibrations from flexible and rigid models are compared under different rotation speeds. Note that the vibration waveforms from rigid and flexible models are similar. The vibrations of different nodes are different under different speeds, which cannot be formulated by the previous rigid models. The vibration model can better represent the vibrations of rotor systems with and without the defect. Moreover, this paper can provide a comprehensive analytical method for vibrations and acoustics of flexible rotor systems with the double-row cylindrical roller bearings.

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考虑双列圆柱滚子轴承缺陷的柔性转子-轴承系统振动模型

双列圆柱滚子轴承系统的振动分析对旋转传动系统的振动控制具有重要意义。然而，目前大多数工作只制定了转子系统与单列圆柱滚子轴承。此外，双列圆柱滚子轴承缺陷转子系统的振动特性不清楚。为了解决这一问题，本文建立了含缺陷双列圆柱滚子轴承的柔性转子系统的振动模型。研究了速度和缺陷对柔性转子系统振动的影响。比较了不同转速下柔性模型和刚性模型的振动。请注意，刚性和柔性模型的振动波形是相似的。不同节点在不同速度下的振动是不同的，这是以往的刚性模型无法表述的。所建立的振动模型能较好地反映转子系统存在缺陷和不存在缺陷时的振动情况。此外，本文还为双列圆柱滚子轴承柔性转子系统的振动和声学提供了一种全面的分析方法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Proceedings of the Institution of Mechanical Engineers Part K-Journal of Multi-Body Dynamics 工程技术-工程：机械

CiteScore

4.10

自引率

11.10%

发文量

审稿时长

>12 weeks

期刊介绍： The Journal of Multi-body Dynamics is a multi-disciplinary forum covering all aspects of mechanical design and dynamic analysis of multi-body systems. It is essential reading for academic and industrial research and development departments active in the mechanical design, monitoring and dynamic analysis of multi-body systems.