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The airline operating quality directly reflects the optimal allocation of airlines resources, and the level of operating quality is related to the safety and benefits of airlines’ operation. In order to accurately evaluate the airline operating quality, the situation of airlines’ operating is analyzed, and the evluation index is established from the following four aspects: operation management level, security level, operation performance and service quality. Due to uncertainty of the factors, grey theory is introduced to evaluate airline operating quality. The evaluation index weights are determined by means of the analytical hierarchy process. The results show that the method can effectively use evaluation index information. Meanwhile, it can scientificly reflect the status of the airline operating quality.

Utilizing finite element software, an universal program has been worked out by the APDL, and it can output the heat dissipating capacity of appointed surfaces in analysis software. The program is so powerful that it can calculate the heat dissipating capacity of heat conductor in which the heat transfer two-dimensionally or three-dimensionally even if the heat conductor is anisotropic, which is difficult to calculate with the mathematic analysis method. The method mentioned in the paper can diminish the inaccuracy caused by the predigestion with the mathematic analysis method. The calculation principle of the program was introduced in detail. Comparing the result of the program with that got by mathematic method, it was indicated that the calculation error of program is very small.