柔性支撑转子高速动平衡时机械滞后角的优化选取  

Optimal Selection of Hysteresis Phase Lag during High Speed Dynamic Balance for Flexibly Supported Rotor

作　　者：李恒海 王宝玉 谷志德[2] 

机构地区：[1]华电电力科学研究院,杭州310032 [2]甘肃省电力公司电力科学研究院,兰州730030

出　　处：《汽轮机技术》2014年第4期289-291,共3页Turbine Technology

摘　　要：对于柔性支撑的大型汽轮发电机组转子,由于支撑结构刚度较低,造成振动不平衡响应较高,容易出现瓦振超标现象。振动机械滞后角的优化选取能够有效提高转子高速动平衡一次加重成功率,通过柔性支撑振动特性分析,给出了机械滞后角的选取方法,并结合机械滞后角在转子高速动平衡中的作用,列举柔性支撑转子高速动平衡实例。For large turbine rotor of flexible support, because of the low stiffness of the support structure, the unbalance response is high, and it is easy to occur that the bearing vibration exceed the standard value. The optimal selection of vibration hysteresis phase lag can effectively enhance the success rate of once aggravation for rotor during high speed dynamic balance. The selection method of the hysteresis phase lag is proposed through vibration characteristic analysis under flexible support. Combined with the effect of hysteresis phase lag in the high speed dynamic balance of rotor, the high speed dynamic balance example of flexibly supported rotor is given.

关 键 词：柔性支撑 高速动平衡 机械滞后角 

分 类 号：TK268.1[动力工程及工程热物理—动力机械及工程]