飞机结构环境损伤的评定是制定初始维修大纲的基础工作.考虑到现行的等级求和法的缺陷,它不能很好地反映各个影响因素对结构的影响程度.文章基于模糊数学的基本原理提出了模糊综合评定的方法.结合环境损伤的评定过程,建立数学模型,并用C程序实现模型的求解过程.最后,文中应用新方法对飞机的某一重要结构项目作了等级评定并分析了新方法的优点.%Aim. The introduction of the full paper discusses relevant matters and,then proposes the exploration mentioned in the title, which, in our opinion, has a promising future in Chinese aircraft maintenance and is fully explained in sections 1, 2 and 3. Their core consists of; ( 1) because the existing rating sum method can not reflect the degree of impact of an individual factor on an aircraft, we use fuzzy sets to develop the fuzzy synthetic evaluation method; (2) we take into consideration the environmental deterioration assessment and establish the mathematical model of multi-factor fuzzy synthetic evaluation, thus obtaining the evaluation rating as shown in eq. (9) ; (3) we use the C Language to calculate the rating values of different evaluation models. We apply our fuzzy synthetic evaluation method to evaluating the synthetic ratings of environmental deterioration of the significant item of a certain aircraft ; the evaluation results, given in Fig. 2, and their analysis show preliminarily that our method can indeed effectively evaluate its environmental deterioration, determine the aircraft maintenance interval and save maintenance costs.
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