摘要
采用CAE软件Hypermesh与Abaqus相结合,解决了复杂结构有限元建模难的普遍难题。建立了某柴油发动机气缸盖的有限元分析模型,并进行模态分析,提取了前6阶固有频率及振型。通过试验模态分析数据检验,误差基本在5%以内,说明有限元模型具有较高的精度,同时证明有限元分析的准确性,为气缸盖的优化设计和动力学分析打下了基础。
With the combination of the two CAE software Hypermesh and Abaqus,the universal difficulty of modeling complicated finite elements is solved.The cylinder head of a diesel engine is successfully modeled.Modal analysis is carried out and the first six natural frequencies and mode shapes were extracted.By examining the data of modal analysis,the deviations are within 5%,which explains rather high precision of the finite model and the accuracy of finite elements analysis.The present work lays the foundation for optimization design and dynamic analysis of cylinder head.
出处
《江南大学学报（自然科学版）》
CAS
2011年第5期578-581,共4页
Joural of Jiangnan University (Natural Science Edition)
关键词
气缸盖
模态分析
试验模态分析
cylinder head
modal analysis
experimental modal analysis
