薛亚丽,石红
XUE Yali,SHI Hong

• 1:上海阿波罗机械股份有限公司
• 2:生态环境部核与辐射安全中心

摘要(Abstract)：

以核电站用某型高转速辅助给水泵转子为研究对象,为验证地震工况下转子动力学是否满足设计要求,对转子进行数值模拟分析,主要包括转子的各阶临界转速及振型图;转子不平衡质量引起的受力载荷;地震工况下的叶轮运行位移量与激励频率关系曲线等。模拟计算结果表明,该高转速泵临界转速满足设计要求,以第一弯曲临界转速为例,第一阶弯曲临界转速(21 200 r/min)大于额定转速的1.25倍(10 000 r/min);临界扭转频率(231 Hz)满足设计要求(大于1.1倍的激励频率(146.6 Hz));在最恶劣的地震工况下转子的最大运行偏移量(0.021 3 mm)小于设计要求的转子系统最小配合间隙(0.31 mm),转子谐响应满足设计要求,即转子动力学满足设计要求。
By taking the rotor of a high-speed auxiliary feed pump used in nuclear power plant as the research object，in order to verify whether the rotor dynamics can meet the design requirements under the earthquake condition，the numerical simulation analysis of the rotor was conducted，which mainly includes the critical speed and mode diagram of each order of the rotor；the force load caused by the unbalanced mass of the rotor，the relationship curve between the operating displacement and the excitation frequency of the impeller under the earthquake condition，etc.The simulation results show that the critical speed of the high-speed pump meets the design requirements；take the first bending critical speed as an example，the first order bending critical speed(21 200 r/min) is greater than 1.25 times of the rated speed(10 000 r/min)；the critical torsional frequency(231 Hz) meets the design requirements(greater than 1.1 times the excitation frequency(146.6 Hz))；under the worst earthquake condition，the maximum operation deviation(0.021 3 mm) of the rotor is less than the minimum fit clearance(0.31 mm) of the rotor system required by the design，and the rotor harmonic response meets the design requirements，that is，the rotor dynamics meets the design requirements.

关键词(KeyWords)： 转子;地震工况;临界转速;谐响应
rotor;earthquake condition;critical speed;harmonic response

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 薛亚丽,石红
XUE Yali,SHI Hong

参考文献(References)：

• [1]关醒凡.现代泵技术手册[M].北京：中国宇航出版社，1995.GUAN X F.Modern pump technical manual[M].Beijing：China Aerospace Publishing House，1995.
• [2]何朝晖，雪增红，刘兴发，等.离心泵转子动力学分析[J].风机技术，2019(Z1)：65-70.HE Z H，XUE Z H，LIU X F et al.Rotor dynamics analysis of centrifugal pump[J].Fan Technology，2019(Z1)：65-70.
• [3]杨永彬.多级泵转子动力学分析[J].通用机械制造，2016(11)：77-79.YANG Y B.Rotor dynamics analysis of multistage pump[J].General Machinery Manufacturing，2016(11)：77-79.
• [4]李方忠，陈平伟，王天周，等.多级离心泵-电机轴系转子动力学分析[J].机械研究与应用，2018(6)：26-29.LI F Z，CHEN P W，WANG T Z，et al.Rotor dynamics analysis of multistage centrifugal pump motor shafting[J].Mechanical Research and Application，2018(6)：26-29.
• [5]陈宁，胡永海，陈乃娟.核电常规岛主给水泵转子动力学分析[J].水泵技术，2018(2)：6-9.CHEN N，HU Y H，CHEN N J.Rotor dynamics analysis of main feedwater pump in conventional nuclear power island[J].Water Pump Technology，2018(2)：6-9.
• [6]高莹，曹宁，马斌.卧式多级离心泵转子系统的谐响应特性分析[J].水电能源科学，2017(12)：158-161.GAO Y，CAO N，MA B.Harmonic response analysis of rotor system of horizontal multistage centrifugal pump[J].Hydropower Energy Science，2017(12)：158-161.[[7]虎兴娜.DG型多级泵平衡盘-转子系统启动过程的瞬态特性研究[J].流体机械，2019，47(6)：24-28.HU X N.Research on transient characteristics of balance disk rotor system of DG multistage pump during start-up[J].Fluid Machinery，2019，47(6)：24-28.
• [8]曹宁，高莹，马斌.末级密封间隙对自平衡多级离心泵性能的影响[J].流体机械，2018，46(6)：22-26.CAO N，GAO Y，MA B.Effect of final stage seal clearance on performance of self balancing multistage centrifugal pump[J].Fluid Machinery，2018，46(6)：22-26.
• [9]朱慈东，李志鹏，张森，等.口环密封对高压多级离心泵临界转速的影响[J].流体机械，2019，47(1)：31-35.ZHU C D，LI Z P，ZHANG S，et al.Influence of the ring seal on critical speed of the high pressure multistage centrifugal pump[J].Fluid Machinery，2019，47(1)：31-35.
• [10]孔繁余，王婷，张洪利.基于流场数值模拟的多级泵转子动力学分析[J].江苏大学学报，2011(5)：516-521.KONG F Y，WANG T，ZHANG H L.Rotor dynamics analysis of multistage pump based on numerical simulation of flow field[J].Journal of Jiangsu University，2011(5)：516-521.