阻尼和短路时间对轴系扭振疲劳寿命损耗的影响  

THE IMPACT OF DAMPING AND SHORT-CIRCUIT TIME ON TORSIONAL VIBRATION FATIGUE LIFE EXPENDITURE OF SHAFTS SYSTEM

作　　者：庞立云[1] 李如翔[1] 王红兵 

机构地区：[1]华北电力学院动力系

出　　处：《华北电力学院学报》1993年第4期58-64,共7页

摘　　要：讨论了汽轮发电机组在短路工况下阻尼和短路时间对轴系扭振疲劳寿命的影响,根据计算结果提出了“临界阻尼”的概念。本文所得到的结论,可用于轴系扭振问题的进一步研究和分析实际机组扭振疲劳特性时参考。In this paper,the impact of damping and short-circuit time on torsional vibration fa- tigue life of turbo-generator under short-circuit is discussed.According to the calculated re- sults,the concept of critical damping is proposed.The conclusion of the presented paper not only can be used for the future study of torsional vibration of shafts systems,but also privides reference when the torsional vibration fatigue properties of power unit is analysed.

关 键 词：汽轮发电机组 扭振 疲劳 

分 类 号：TM311.014[电气工程—电机]