利用运筹学中的层次分析方法,建立了该问题的层次模型,依据各层元素对上层元素的贡献大小,请专家和用户打分构造判断对比矩阵,形成原始计算数据,在对数据进行校验后,计算得到候选发动机优劣的定量比较结果,不仅使复杂的、难以定量描述的民用航空发动机选优问题变成简便的定量分析和数值模拟,而且可以获得各候选发动机细节方面的优缺点,对发动机生产商改进产品弱点,提高其竞争力亦有重要的意义. According to the contribution of each layer element to the upper layer element, expert and user are scored to judge the contrast matrix according to the analytic hierarchy process in operation research to form the original calculation data. After checking the data, , The quantitative comparison results of the pros and cons of the candidate engines are calculated, which not only makes the complex and difficult to quantitatively describe the selection of civil aviation engines a simple quantitative analysis and numerical simulation, but also obtains the advantages and disadvantages of the details of each candidate engine. It is also important for engine manufacturers to improve their product weaknesses and increase their competitiveness.