• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International Conference on Vibration Problems >Some Numerical Studies on Coupled Turbine-Generator Rotor System Models
【24h】

Some Numerical Studies on Coupled Turbine-Generator Rotor System Models

机译：汽轮发电机转子系统耦合模型的数值研究

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Coupled turbine-generator rotor systems are unique in their vibration behavior compared to individual rotor systems. Changes in geometric and dynamic parameters of individual rotor systems and coupling affect the overall response. Since there is also bound to be inherent misalignment at the coupling location, along with residual unbalance in the system, the rotor response contains harmonics corresponding to both unbalance and misalignment. A coupled Jeffcott rotor system with central discs integrated with active magnetic bearing (AMB) is considered in this work. The mathematical model is formulated from four degrees of freedom coupled Jeffcott rotor systems using Lagrange's equations. A SIMULINK model is created to generate vibration and current responses in the time domain. Secondly, a full-spectrum FFT analysis of the time-domain signal is performed to examine the harmonics of the rotor's vibration response and AMB's current response. The change in the nature of rotors' response for various permutations of unbalance and angular misalignment is studied. The advantage of full spectrum over time-domain signals and orbit plots in diagnosing misalignment has been demonstrated.
机译：与单个转子系统相比，耦合涡轮发电机转子系统的振动特性是独特的。单个转子系统和耦合的几何和动态参数的变化会影响整体响应。由于耦合位置也必然存在固有的不对中，以及系统中的残余不平衡，转子响应包含与不平衡和不对中对应的谐波。本文考虑了中心盘与主动磁轴承（AMB）耦合的Jeffcott转子系统。该数学模型由四自由度耦合的Jeffcott转子系统利用拉格朗日方程建立。建立SIMULINK模型，在时域内产生振动和电流响应。其次，对时域信号进行全谱FFT分析，以检查转子振动响应和电磁轴承电流响应的谐波。研究了不同排列的不平衡量和角度偏差对转子响应性质的影响。与时域信号和轨道图相比，全频谱在诊断失准方面的优势已得到证明。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号