复合材料发动机机体温度场和热应力研究

Calculation of the temperature and thermal stress fields of the composite engine block

发动机机体工作时除了承受复杂的机械负荷，还承受热负荷，必须对机体温度场和热应力场进行研究。本文采用自编20节点曲六面体单元的有限元法。

In addition to complex mechanical loads, the engineblock bears thermal loads. The temperature and thermal stress fields arecalculated by 3-d finite element methods. 20-nodes curval hexahedroniso-parametric elements are adopted so as to calculate DA462Q composite engine block