【摘要】 用静态凝聚法和子结构技术 ,大幅度缩减机床整机有限元分析的计算规模 ,保证了工程研究感兴趣的低阶频率范围的精度 .结合 1台大型机床整机的有限元建模 ,在微机上对其进行动态性能分析 ,判别薄弱环节 ,提出设计修改方向和建议 .更多还原

【Abstract】 Stiffness and mass matrices is effectively reduced by static condensation and sub-structure method. The finite element analysis for complex mechanical structure can be performed in personal computer. The result and discussion of the dynamic analysis is presented for a heavy-duty machine tool, with program AMTPOS.更多还原