The comparison indicates that the appropriate results can be obtained only when with fine enough meshing in Finite Element modal analysis, as the cylinder block is a complex and thin cast parts.

• 研究表明，对于柴油机气缺体这类薄壁铸造的复杂构件，进行有限元模态分析，需要采用很细的网格划分，才能保证较精确的结果。