转子不平衡现象的分析  

An Analysis of Rotor Unbalance

作　　者：黄永东[1] 

机构地区：[1]东方汽轮机有限公司,德阳618000

出　　处：《发电设备》2009年第3期164-169,共6页Power Equipment

摘　　要：简述了转子不平衡的原因和不平衡振动的特征,以及对汽轮机转子、轴承箱振动、转子应力和动、静摩擦的影响;分析了出现转子不平衡的其他原因,是由测振探头的工作表面问题、电气噪声、转子裂纹和弯曲等造成的;指出转子动平衡是消除转子不平衡的主要方法。Fault features of rotor unbalance vibration are being described, while general causes of the unbalance as well as the resulted influence on rotor and bearing housing vibration, rotor stress and corresponding dynamic/static friction presented. Other possible reasons, such as troubled working surface of vibration detector probe, electrical noise, rotor cracking or bending, are also analyzed. Dynamic balancing is proposed as an important way for the rotor unbalance elimination.

关 键 词：汽轮机 不平衡转子 1倍频振动 动平衡 

分 类 号：TK268.1[动力工程及工程热物理—动力机械及工程]