QQ客服 官方微博 反馈留言

	蓄能机组转子系统三维动力特性研究
	翟黎明 ; 姚泽 ; 黄青松 ; 阎宗国 ; 王正伟 ; Zhai Liming ; Yao Ze ; Huang Qingsong ; Yan Zongguo ; Wang Zhengwei
	2016-03-30 ; 2016-03-30
关键词	抽水蓄能发电机组 临界转速 轴承 不平衡磁拉力 有限元 Motor vehicle Extreme conditions Tire side slip angle Test method TV743
其他题名	3D Dynamic Characteristics of Rotor System of Pump Storage Generator Set
中文摘要	受机械、电磁、水力等因素的影响,抽水蓄能发电机组轴系临界转速分析是复杂的转子动力学问题。采用SAMCEF ROTOR程序建立了抽水蓄能发电机组转子-轴承-电磁系统三维有限元模型,计算了不平衡磁拉力刚度系数以及轴系的临界转速和振型。讨论了发电机不平衡磁拉力、导轴承刚度系数变化对临界转速的影响。结果表明,不平衡磁拉力随着励磁电流和转子偏心距的增加呈非线性增加,并使一阶临界转速降低;轴系的临界转速随导轴承轴承刚度的增加而增加。水导轴承对2阶临界转速影响较大。上、下导轴承对1、3阶临界转速影响较明显。; Analysis on shaft critical speed of pumped storage generator set is a complex problem in rotor dynamics under the influences of mechanical,electromagnetic and hydraulic factors. A 3D finite element model of a rotor-bearing-electromagnetic coupled system for pumped storage generator set was built in SAMCEF ROTOR. The stiffness coefficients of unbalanced magnetic pull,the shaft critical speeds and the modes of vibration were calculated. The effects of the stiffness change of unbalanced magnetic pull in generator,turbine guide bearing and generator guide bearings on the critical speed were also discussed.The results show that the unbalanced magnetic pull increases nonlinearly as the excitation current and rotor eccentricity increase,and decreases the first order lateral critical speed. The lateral critical speed increases with the stiffness of the guide bearings,among which the turbine guide bearing mainly affects the second order critical speed,while the upper and lower generator guide bearing mainly influence the first and third critical speeds.
语种	中文 ; 中文
内容类型	期刊论文
源URL	[http://ir.lib.tsinghua.edu.cn/ir/item.do?handle=123456789/148754]
专题	清华大学
推荐引用方式 GB/T 7714	翟黎明,姚泽,黄青松,等. 蓄能机组转子系统三维动力特性研究[J],2016, 2016.
APA	翟黎明.,姚泽.,黄青松.,阎宗国.,王正伟.,...&Wang Zhengwei.(2016).蓄能机组转子系统三维动力特性研究..
MLA	翟黎明,et al."蓄能机组转子系统三维动力特性研究".(2016).

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。