发电机两端支撑特性对其振动响应的影响研究及应用分析

曾庆猛; 刘志敏

doi:10.3969/J.ISSN.2095-3429.2017.05.013

欢迎来到能源电力期刊网！

English Version 读者登录期刊登录

您当前的位置：

首页 >

文章列表页 >

发电机两端支撑特性对其振动响应的影响研究及应用分析

发电技术 | 更新时间：2026-01-28

- 发电机两端支撑特性对其振动响应的影响研究及应用分析
- Research and Analysis of the Influence of Generator Support Characteristics on Vibration Response and Its Application
- 发电技术1 2017年38卷第5期页码：55-58
- 作者机构：
  
  华电电力科学研究院,浙江,杭州,310030
- 作者简介：
- 基金信息：
- DOI：10.3969/J.ISSN.2095-3429.2017.05.013
  中图分类号： TM621.3
- 网络出版：2017-10-30，
  
  纸质出版：2017
- 稿件说明：
移动端阅览
曾庆猛, 刘志敏. 发电机两端支撑特性对其振动响应的影响研究及应用分析[J]. 发电技术1, 2017,38(5):55-58.

ZENG Qingmeng, LIU Zhimin. Research and Analysis of the Influence of Generator Support Characteristics on Vibration Response and Its Application[J]. 2017, 38(5): 55-58.
曾庆猛, 刘志敏. 发电机两端支撑特性对其振动响应的影响研究及应用分析[J]. 发电技术1, 2017,38(5):55-58. DOI： 10.3969/J.ISSN.2095-3429.2017.05.013.

ZENG Qingmeng, LIU Zhimin. Research and Analysis of the Influence of Generator Support Characteristics on Vibration Response and Its Application[J]. 2017, 38(5): 55-58. DOI： 10.3969/J.ISSN.2095-3429.2017.05.013.

摘要

建立了某1000MW机组的有限元模型

利用该模型研究了发电机两端支撑特性相近和差别显著时轴系的振动响应特性

模拟结果表明发电机两端支撑特性相近时

发电机一阶不平衡主要引起发电机一阶临界转速下的同相振动;而当发电机两端支撑特性相差较大时

发电机一阶不平衡在发电机一阶临界转速下激起较大的同相振动

同时也激起较大的反相分量。最后结合某发电机异常振动诊断及处理案例进一步验证了结论的可靠性。

Abstract

The paper established a finite element mod-eling of a 1000 MW unit.The model was used to study the vibration response characteristics of the shafts at both ends of the generator.The simulation results showed that the first-order imbalance of the generator first caused the in-phase vibration at the first-order critical speed of the generator when the two ends of the generator support simi-lar characteristics.When the difference in support character-istics between the two ends of the generator was large

the first-order unbalance of the generator provoked a large inphase vibration at the first-order critical speed of the gener-ator

and also provoked a large reverse component.Finally

the reliability of the conclusion was verified by combining the abnormal vibration diagnosis and processing cases of a generator.

关键词

Keywords

references

浏览量

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

暂无数据