An Economic Evaluation of Combat Aircraft Design Alternatives Based on Fractal Theory
Yang Yu-xin
Wei Fa-jie
Wang Fan
Abstract：The factor of development schedule is necessary to discuss in the economic evaluation of combat aircraft design alternatives.However, there are deficiencies in present methods, such as unreasonable lin-earization, difficulty in dealing with the multi-level data, excessive subjectivity and so on.Fractal theory reveals regularity, the hierarchy and scale invariance between the whole and partial, and the quantitative feature correlation dimension presents the key information of the whole.Obviously, the fractal theory has obvious advantages in dealing with the nonlinear relationship between the evaluation factors and extraction characteristic value of evaluation object.Due to these advantages, a multi-targets evaluation index system of combat aircraft design alternatives is constructed.An example is used to prove the effectiveness of the method, the fractal method and the order preference by similarity to an ideal solution ( TOPSIS) with the same conclusion.Moreover, fractal method is simpler, more objective, and can handle arbitrary level of mixed data.
Keywords：economic evaluationmulti-targets decisionfractal evaluationcorrelation dimension
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 127-131 )