不同网格密度对柴油机前托架有限元模态分析的影响

摘要

Taking the front bracket of a diesel engine as an example,the entity's geometric model is constructed according to reasonable simplification of the design. Researchers were made on the effects of the FEM modal analysis results with different meshing densities. The result provides reference for the choice of element in further engine modal analysis.%以某柴油机前托架为研究对象,依据设计图纸合理简化、建立了前托架的实体模型,比较了不同网格划分精度对有限元模态分析结果的影响,得出的结论为后续整机模态计算时单元类型及尺寸的选择提供了参考依据.