【摘要】 本文应用动态子结构法建立了某大功率柴油机机体+曲轴+缸盖组合结构的有限元模型,并用虚拟材料来模拟其结合面的动态性能,通过基于试验对比的有限元模态分析,说明所建机体+曲轴+缸盖组合结构的有限元模型正确,为其下一步的动力响应及组合结构的动态特性分析提供了可靠的依据。更多还原

【Abstract】 The finite element model of block & craft & cylinder head combination structure of a high duty diesel is presented with a dynamic sub-structure method,and imaginary material is used to simulate the dynamic properties. In comparison with the experiment results, the model is verified . Reliable basis is provided in the next research on dynamic response and dynamic characteristics of combination structure.更多还原