| Jeffcott转子在油膜力和气流力作用下的非线性研究 |
| |
| 引用本文： | 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, 28(5) |
| |
| 作者姓名： | 黄来 袁尧 段忠诚 王咏梅 |
| |
| 作者单位： | 湖南省电力公司试验研究院,湖南,长沙,410007;华润电力湖南有限公司,湖南,郴州,423402;湖南华电长沙发电有限公司,湖南,长沙,410007 |
| |
| 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扣混沌现象,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.
|
| 关 键 词： | 转子 数值模拟 油膜力 气流力 非线性 混沌 分岔 |
Study on nonlinear dynamic characteristics of Jeffcott rotor system under oil-film force and alford force |
| |
| HUANG Lai,YUAN Yao,DUAN Zhong-cheng,WANG Yong-mei. Study on nonlinear dynamic characteristics of Jeffcott rotor system under oil-film force and alford force[J]. Hunan Electric Power, 2008, 28(5) |
| |
| Authors: | HUANG Lai YUAN Yao DUAN Zhong-cheng WANG Yong-mei |
| |
| Affiliation: | HUANG Lai1,YUAN Yao2,DUAN Zhong-cheng3,WANG Yong-mei1 (1.Hunan Electric Power Test & Research Institute,Changsha 410007,China,2.Huarun Hunan Electric Power Co.,Ltd,Chenzhou 423402,3.Hunan Huadian Changsha Power Plant,China) |
| |
| 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 h... |
| |
| Keywords: | turbine rotor numerical simulation oil-film force Alford force nonlinear chaos bifurcation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
