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通常,为了用有限元素法计算涡轮盘的温度场,必须予先给出三类边界条件。为此,要事先进行必要的试验或计算,显然试验工作要化费大量的资金,而计算所得之边界条件往往不能满足实际计算的需要。尤其对于设计中的发动机,或拟调整温度场之涡轮盘,往往不能给出有关的边界条件。本文建立了涡轮盘温度场与其工作条件的直接联系,从而避免出现上述困难,使涡轮盘温度场的计算更加合理和便利。本文并提供了一个计算实例。
In general, three types of boundary conditions must be given in advance in order to calculate the temperature field of a turbine disk using the finite element method. For this reason, it is necessary to carry out the necessary tests or calculations in advance. Obviously, a large amount of capital is required for the test work, and the calculated boundary conditions often can not meet the needs of actual calculation. In particular, the design of the engine, or to adjust the temperature field of the turbine disk, often can not give the relevant boundary conditions. This paper establishes a direct relationship between the turbine disk temperature field and its working conditions, so as to avoid the above difficulties and make the calculation of turbine disk temperature field more reasonable and convenient. This article also provides a calculation example.