摘要
为提高炼油厂罗茨风机的动力学稳定性,对其整机动力学特性进行研究。采用有限元分析建立整机动力学模型,计算固有频率及模态特性,并通过谐响应分析评估不同频率激励下的振动响应。结合实验模态分析,对计算结果进行实验验证,测得第一阶固有频率误差小于1.0%,表明仿真计算精度较高。研究结果识别出出气口及轴承座区域为振动敏感区。
In order to improve the dynamic stability of the oil refinery Roots fan,the dynamic characteristics of the whole machine are studied.Finite element analysis(FEA)is used to establish the dynamic model of the whole machine,calculate the intrinsic frequency and modal characteristics,and evaluate the vibration response under different frequency excitation by harmonic response analysis.Combined with the experimental modal analysis(EMA),the calculation results are verified experimentally,and the error of the first-order intrinsic frequency is measured to be less than 1.0%,which indicates that the accuracy of the simulation calculation is high.The results of the study identify the air outlet and bearing housing areas as vibration sensitive zones.
作者
任诗韬
Ren Shitao(Sinopec Yangzi Petrochemical Company Limited,Nanjing Jiangsu 210044,China)
出处
《机械管理开发》
2025年第5期23-24,27,共3页
Mechanical Management and Development
关键词
罗茨风机
动力学特性
模态分析
谐响应
实验验证
roots fan
dynamic characteristics
modal analysis
harmonic response
experimental verification
