| The technology of equipment elections of commercial aircraft combines complex qualities like technicality and economy, which makes it to be one complicated multi-objective decision problem. As an aircraft maker, decisions have to be made properly so as to develop products fit for customers, and help build foundation of raising market share. As an airline customer, one scientific and reasonable decision of equipment election is able to help the election be suitable for market requirements and realize the optimum economy based on security. The research of evaluation methods of commercial aircraft equipment decision is important to civil aircraft manufacturers and airline customers.This thesis is based on analyzing common advantages and disadvantages of evaluation methods, as well as assesses multi-select problems of required equipments in aircraft equipment option and optimal choice problem of optional equipments. Mainly work is listed below:(1) As a manufacturer considering primary choice, the thesis aims at achieve level indicators of universality, reliability, performance and economy, and build evaluation model of equipment options towards manufacturer. The multi-objective programming is utilized to solve equipment option model.(2) As a customer, the thesis made further choice which is based on primary choice and level indicators of universality, reliability, performance and economy. Thesis also uses hierarchy weighting method to assess equipment option, Economic analysis method to make research of input and output problems of equipment option and direct operation cost analysis to evaluate results.(3) According to the above methods, this thesis makes an experiment of aircraft anti-collision gear equipment and evaluate the whole set of index system. The result shows the equipment option selection method based upon manufacturer and customer is reasonable and efficient. By using direct cost account of every economic index of equipping additional wingtip device, the thesis calculates detailed cost and potential benefits, which verify the method of utilizing direct operation cost analysis to be reasonable and scientific. |
