In the fierce competitive civil aviation market,airlines’ urgent need of the individuation and the market coverage makes the requirements of the research on wide-body aircraft selection and options to be further improved.At present,the aircraft options are mostly based on subjective and fuzzy judgment through a small amount of data,increasing the uncertainty of the selection and options results and seriously affecting the operation,development and safety management of the airlines.To solve the above problems,the concept and general workflow of aircraft options is introduced based on the perspective of airlines.The items with few researches in the workflow are chosen,and some suitable analysis and optimization methods of them are explored,then the theoretical model and algorithm flow of them are constructed.Firstly,the maximum take-off weight selection of aircraft is analyzed.The aircraft payload range curve is used to analyze the performance of payload,range and economy among different models or series aircraft,and with this,the maximum take-off weight of an aircraft is determined.Secondly,the comprehensive evaluation system of aircraft engine is structured and assigned a value by Analytic Hierarchy Process(AHP).Then utility function is used for engine selection and reflecting the speculative risk preferences of different customers intuitively.Thirdly,the costs and benefits of installing pneumatic components are estimated to analyze the ROI,NPV and PP of Pneumatic component options.Based on the above researches,a database of wide-body aircraft options is built,and a customer oriented system used to analyze the options of wide-body aircraft is designed and developed in C# language.Then the reliability and applicability of the evaluation methods and the usefulness of the system is demonstrated combined with airline operating example.In summary,the evaluation methods researched help airlines to develop and compete in the market.With those methods,the personalized needs of customers are satisfied,and the results are improved more scientific and comprehensive,which has a certain value on the subsequent development of civil aircraft selection and options. |