基于COC的发动机选型评估模型的应用研究

发动机选型评估是民用飞机可行性研究和方案设计阶段关键的技术手段之一。明确了民用飞机动力装置需求的技术、系列化发展和成本因素；提出了一种基于COC方法的动力装置选型评估模型。该选型评估模型综合考虑了上述因素；利用所述模型分析计算了某典型单通道客机的推力需求，与实际工程结果相比较，证明其具有良好的评估精度，并且具有一定的工程实用价值；提出了进一步研究工作的主要方向。

Applied Study of Engine Selection Evaluation Model Based on COC

It is one of the key techniques of civil transport during feasibility and preliminary study phases to quickly evaluate engine models. The factors of engine requirements are firstly shown, which includes techniques, series development and costs. And then a engine selection estimate model based on COC（cash operating cost） with impact of the above factors is referred. A sample used this model is finally provided, which indicates that the high fidelity and availability of the model in engineering program is proved. In the end, some proposals about further study are proposed.