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Improving Algorithmic Efficiency of Aircraft Engine Design for Optimal Mission Performance

Improving Algorithmic Efficiency of Aircraft Engine Design for Optimal Mission Performance PDF Author: Paul T. Millhouse
Publisher:
ISBN: 9781423563648
Category : Airplanes, Military
Languages : en
Pages : 153

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Book Description
Automated techniques for selecting jet engines that minimize overall fuel consumption for a given aircraft mission have recently been developed. However, the current techniques lack the efficiency required by Wright Laboratories. Two noted dependencies between turbine engine fan pressure ratio, bypass ratio, high pressure compressor pressure ratio and overall engine mass flow allows for a reduction in the number of independent design variables searched in the optimization process. Additionally, through the use of spatial statistics (specifically kriging estimation), it is possible to significantly reduce the number of time consuming response function evaluations required to obtain an optimal combination of engine parameters. A micro Genetic Algorithm (microGA) is employed to perform the non linear optimization process with these two computation saving techniques. Optimal engine solutions were obtained. in 25 percent of the time required by previous automated search algorithms.