Aircraft Combat Survivability Calculation Based on Combination Weighting and Multiattribute Intelligent Grey Target Decision Model

Abstract

Aircraft combat survivability is defined as the capability of an aircraft to avoid or withstand a man-made hostile environment, which has been increasingly important. In order to give a rational calculation of aircraft combat survivability, an integrated method based on combination weighting and multiattribute intelligent grey target decision model is proposed. Firstly, an evaluation index system containing susceptibility index and vulnerability index as well as their subindexes is established. Then a multiattribute intelligent grey target decision model is introduced. A combination weighting method is brought up based on a modified AHP (analytic hierarchy process) method and the entropy method, offering a rational weight for various indexes. Finally, utilize the multiattribute intelligent grey target decision model to assess the aircraft combat survivability of aircraft, verified by a practical case of five aircraft. The results show that the proposed method is effective and has a great value in engineering application, which will provide useful references for other projects’ evaluation.

Vulnerability assessment of combat aircraft to blast loading

“…The attenuation of blast wave overpressure is a function of charge mass and the distance from the detonation, 22,23 the incidence peak overpressure of a spherical warhead with TNT charge at sea level is where P r is the incident overpressure to MPa; dtrue¯=d/Wd3 the relative distance, m/kg 1/3 ; d the distance between burst point and the target, m; W d the charge quantity, kg. For other explosive types at sea level or TNT exploding at high altitude, the equivalent mass will be conversed by the principle of energy similarity.…”

“…Aircraft combat survivability is defined as the resistibility of an aircraft to the hostile environment. 1 As one of the main threats, blast loading is non-negligible due to its catastrophic damage to the structures. 2–4…”

Human Resource Management Outsourcing Decision for Small and Medium-sized Enterprises in China

“…Objective weighting approaches, like factor analysis and entropy, determine weights by digging the relationship in original data, which can be objective but cannot reflect the preference of decision makers. That means, subjective and objective weighting approaches have their advantages and disadvantages respectively (Jia, Tong, Wang, & Li, 2016). Therefore, the application of combination weighting method can overcome the limitations of using subjective or objective weighting approach only.…”

A Combined Weighting Method Based on Hybrid of Interval Evidence Fusion and Random Sampling

“…To overcome the shortcomings of the subjective and objective weighting methods, in recent years, methods which combine the subjective and objective weighting have been developing rapidly. These methods include modified AHP and the entropy method [2], maximum entropy weighting [3], geometric operator weighting [4], and weighting method based on maximizing the difference in evaluation results [5]. But in general, most of the computing methods are complicated, and some of them also can hardly reflect different emphasis of experts placed on different indices.…”