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《Systems Engineering-theory & Practice》 2003-03
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Gray Model Based Airframe Cost Estimating Method of Uninhabited Combat Air Vehicles

LU Kai, LI Wei-ji, SONG Bi-feng(Department of Aircraft Engineering ,Northwestern Polytechnical University, Xi'an 710072, China)  
A cost model based on gray theory is made for the airframe cost estimating of uninhabited combat air vehicles(UCAV).The sample data of UCAV is simulated by the transformation of modified manned attack fighters and the cost sample data is also created using DAPCA Ⅳ cost model for the same airplanes. Gray model has a good ability of forming a rule through accumulated generation operation and inverse accumulated generating operation. Therefore it makes gray model be used widely in model making, especially in the situation of small sample estimation.The verification results of engineering hours estimation of UCAV using gray model show that gray model can be used for UCAV airframe RDTE and EMD cost both effectively and satisfactorily.
【Fund】: 全国优秀博士论文专项基金 ( 2 0 0 0 5 1)
【CateGory Index】: O159
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