摘要
选取某水平对置四缸航空活塞发动机的凸轮轴为分析对象,在介绍模态分析基本理论的基础上,采用ANSYS Workbe nch软件平台对凸轮轴进行三维实体建模和有限元分析,选取Block Lanczos法计算了该凸轮轴前10阶固有频率和振型,对计算结果进行分析发现了该凸轮轴固有模态的规律。为该凸轮轴的后续结构分析和排除故障提供依据的同时,也为其他多汽缸活塞发动机凸轮轴的固有模态分析提供了便于工程应用的方法。
This paper selects the camshaft of a horizontally opposed four-cylinder aviation piston engine as the analysis object.Based on the basic theory of modal analysis,the ANSYS Workbench software platform is used to perform 3 D solid modeling and finite element modeling of the camshaft.The Block Lanczos method is selected to calculate the first 10 natural frequencies and vibration mode of the camshaft.The analysis of the calculation results reveals the law of the natural mode of the camshaft,which provides a basis for the subsequent structural analysis and troubleshooting of the camshaft,and also provides a convenient engineering application method for the natural modal analysis of the camshaft in other multi-cylinder piston engines.
作者
魏武国
冯浩阳
WEI Wuguo;FENG Haoyang(Aviation Engineering Institute,Civil Aviation Flight University of China,Deyang 618307,China)
出处
《机械工程师》
2020年第3期18-19,22,共3页
Mechanical Engineer
基金
四川省教育厅2018年自然科学一般项目(18ZB0684)
中国民用航空飞行学院2018年面上项目(THZX2018-07)
中央高校2019年教育教学改革专项资金项目(E2019017)
