| 电磁作用激发的水电机组转子轴系振动研究 |
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| 引用本文： | 陈贵清,董保珠,邱家俊.电磁作用激发的水电机组转子轴系振动研究[J].上海力学,2010,31(1). |
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| 作者姓名： | 陈贵清 董保珠 邱家俊 |
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| 作者单位： | 陈贵清,董保珠(唐山学院科研处,河北唐山,063000);邱家俊(天津大学机械工程学院,天津,300072) |
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| 基金项目： | 河北省教育厅基金项目，唐山市科技局项目 |
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| 摘 要： | 水轮发电机组的振动问题是长期困扰广大科研工作者的一个难题,也一直是学术界研究的热点.本文针对某大型水轮发电机转子轴系,首先建立了轴系扭振的微分方程组,给出了轴系整体扭振零频的计算公式,并计算了零频数值.接着在考虑了转子静偏心、振动偏心和转动偏心的综合影响后,求得了气隙磁场能量和单边电磁拉力的表达式,并应用机电耦联系统的能量法,求得了系统由电磁力激发的组合强迫共振响应的一次近似解.最后并应用奇异性理论对分岔方程进行了分析,求得了分岔集、滞后集、双极限集和转迁集的参数区间,给出了普适开折平面和物理参数平面上的分岔图,求得了机组稳定运行区域的电磁参数.本文所得结论对水电机组的工程设计人员具有重要的指导意义.
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| 关 键 词： | 水电机组 转子轴系 电磁作用 振动 奇异性理论 |
Vibration Study on Hydrogenerator Units Rotor System Excited by Electromagnetic Action |
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| CHEN Gui-qing,DONG Bao-zhu,QIU Jia-jun.Vibration Study on Hydrogenerator Units Rotor System Excited by Electromagnetic Action[J].Chinese Quarterly Mechanics,2010,31(1). |
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| Authors: | CHEN Gui-qing DONG Bao-zhu QIU Jia-jun |
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| Institution: | CHEN Gui-qing~1,DONG Bao-zhu~1,QIU Jia-jun~2 (1.Scientific Research Department of Tangshan College,Tangshan 063000,China,2.School of Mechanical Engineering,Tianjin University,Tianjin 300072,China) |
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| Abstract: | Scientific research workers always puzzled with vibration of hydrogenerator units,and this difficult problem is also a hot spot in academic circles.Taking a model of a large hydrogenerator rotor system, the torsional vibrating differential equation set of rotor system was set up,and the calculate formula of the torsional zero-order natural frequency was derived and its value was obtained.Some influencing factors,such as static eccentric,vibrating eccentric,rotating eccentric were considered comprehensively,... |
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| Keywords: | Hydro-generator units rotor system electro-magnetic action vibration singularity theory |
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