借助于有限元法和热电比拟法可从测量点的温度获得活塞温度场并由此而确定部件边界的传热系数。在相同的柴油机运转状态下通过散热状况的一系列变化,对获得的结果作了检验。此时得出的温度场是不同的,然而根据传热系数来反算温度场后,就能得到合理的结果了。 By means of finite element method and thermoelectric simulation, the temperature field of the piston can be obtained from the temperature of the measuring point and the heat transfer coefficient of the part boundary can be determined. In the same diesel engine running through a series of changes in cooling conditions, the results obtained were tested. The temperature field obtained at this time is different, but according to the heat transfer coefficient to the inverse temperature field, you can get a reasonable result.