本文以4135柴油机等机型作为研究对象，对其热负荷进行了全面系统的数值模拟和故障仿真。

This thesis is on the basis of the research of diesel engine type 4135 etc, and the complete and systematic numerical modeling and malfunction simulation for thermal loading.

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讨论组合网格法(CGM)在有限元程序自动生成系统平台(FEPG)上的具体实现，并对激光焊接问题进行数值模拟，取得了理想的仿真结果。

Discussed the CGM based on finite element program generator (FEPG), the laser welding problems is simulated on it, and reached some ideal simulation results.

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