Study on nonlinear dynamic characteristics of Jeffcott rotor system under oil-film force and alford force

HUANG Lai1; YUAN Yao2; DUAN Zhong-cheng3; WANG Yong-mei1

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Study on nonlinear dynamic characteristics of Jeffcott rotor system under oil-film force and alford force

更新时间：2025-11-18

- Study on nonlinear dynamic characteristics of Jeffcott rotor system under oil-film force and alford force
- Issue 5, Pages: 1-6+13(2008)
- 作者机构：
  
  1. 湖南省电力公司试验研究院
  2. 华润电力湖南有限公司
  3. 湖南华电长沙发电有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TB126
- Published：2008
- 稿件说明：
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[1]黄来,袁尧,段忠诚,王咏梅.Jeffcott转子在油膜力和气流力作用下的非线性研究[J].湖南电力,2008(05):1-6+13.

HUANG Lai1, YUAN Yao2, DUAN Zhong-cheng3, et al. Study on nonlinear dynamic characteristics of Jeffcott rotor system under oil-film force and alford force[J]. 2008, (5): 1-6+13.
[1]黄来,袁尧,段忠诚,王咏梅.Jeffcott转子在油膜力和气流力作用下的非线性研究[J].湖南电力,2008(05):1-6+13. DOI：

HUANG Lai1, YUAN Yao2, DUAN Zhong-cheng3, et al. Study on nonlinear dynamic characteristics of Jeffcott rotor system under oil-film force and alford force[J]. 2008, (5): 1-6+13. DOI：

摘要

以Jeffcott转子系统模型为研究对象

结合非稳态油膜力模型

利用气流力模型对转子运动的非线性动力学特性进行研究。采用数值模拟技术

研究了转子系统的分岔和混沌特性。结果表明

随着转速变化

转子的运动呈现出分岔和混沌现象

同时转子受油膜力影响较大

在一定转速下出现较大的半频分量

气流力对转子的影响较小。

Abstract

Based on Jeffcott rotor model system

the dynamic characteristics of rotor were analyzed by means of Alford force model and unsteady oil-film model.Numerical simulation technique was used to analyze the bifurcation and chaos characteristics of rotor system

and the dynamic characteristics of rotor under the increasing rotary speed.The results indicated that the chaos occurs through the periodic-doubling bifurcations with increasing rotary speed and the influence of oil-film force is the main factor.When the half-frequency component occurs at certain speed

the Alford force could be ignored.

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Related Institution

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Shenzhen Jujian Co,LTD,Shenzhen518054,Guandong Province

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