Study on Safety Degree for Evaluating Indexes of Airplane Vulnerability

It is of great importance to confirm precisely the safety degree value of the airplane vulnerability indexes. The airplane vulnerability safety degree value, which is stochastic and fuzzy, can be calculated accurately by set-valued statistics based on fuzzy statistics. During this process, the reliability of vulnerability safety degree value and experts' deviation can be given. It is proved from the example that method of set-valued statistics can supply a gap of conventional statistics and improve the accuracy and reliability of vulnerability evaluation.