摘要
采用有限元ANSYS软件建立离心式上充泵转子部件三维模型和划分有限元网格,分别对转子部件进行干态和湿态下的固有模态分析、两支承与三支承模态分析和临界转速计算。模态分析结果显示干态的基频228.37.41 Hz,湿态基频为253.40 Hz,湿态比干态基频提高10.96%;两支承时基频为72.63 Hz,比三支承降低了71.33%;临界转速计算结果为13702.5 r/min,与上充泵的实际额定转速为4500 r/min相比,高出204.48%,表明临界转速满足要求。
By using the finite element software ANSYS,established was the three-dimensional model for the rotor component of a centrifugal charging pump with its finite element mesh being divided.The inherent modal analysis,two support and three support modal analysis and critical rotating speed calculation of the rotor component were conducted in the dry and wet state respectively.The modal analytic results show that the dry state base frequency is 228.37 Hz while the wet state base frequency is 253.40 Hz,10.96% higher than the former.When two supports are adopted,the base frequency is 72.63 Hz,71.33% lower than that when three supports are adopted.The calculation result of the critical rotating speed is 13702.5 r/min,204.48% higher than the actual rated speed of the charging pump,which is 4 500 r/min,indicating that the critical speed can meet the requirements.
出处
《热能动力工程》
CAS
CSCD
北大核心
2012年第5期604-609,629,共6页
Journal of Engineering for Thermal Energy and Power
基金
国家科技支撑计划基金资助项目(2011BAF14B04)
江苏省科技支撑计划基金资助项目(BE2010156)
江苏省自然科学基金资助项目(BK2011504)
江苏省博士后基金资助项目(12010248)
关键词
核电站
上充泵
转子系统
临界转速
有限元
nuclear power plant,charging pump,rotor system,critical rotating speed,finite element
作者简介
作者简介：付强（1975-），男，黑龙江宝清人，江苏大学助理研究员，博士．
