Safety Evaluation Of The Wing By Finite Element Method

With the rapid economic growth and the swift development of civil aviation trans -portation, the safe operation is always the eternal theme while ensuring the vigorous development of civil aviation. The wings, as an important component of the aircraft, vary in shapes, but their main function is to produce a lifting force and make the aircrafts obtain lateral stability and maneuverability as well as installing landing gears and storing fuel. The safety of the wings is closely related to that of the aircraft, so the research into the safety evaluation of the wings is of great significance to improve the safety design and main -tenance of large aircrafts. Considering the status quo of the development at home and abroad, this essay made an in-depth study into key technologies involving the safety evaluation of the wings.This essay is an evaluation of the wing design based on the wing safety, and works out where the hazard exists through the security analysis method and the system control method combined with analysis of some characteristics of the wing itself.Moreover, through the failure mode and effect analysis, risk assessment matrix and borda order value method, it determines the risk level of the wing so as to identify key factors affecting the wing safety and provide the basis for the safety evaluation.This essay proposed quantitative assessment of compliance based on the system/equi -pment installation, material compatibility and established wing safety assessment model based on the fuzzy theory. The strength analysis of the wing structure through the Ansys finite element method, determines the quantitative indicators, effectively discovers the hazard source and seizes control of key projects. At the same time, designers are able to take timely and necessary measures to support the safety design. Finally, it takes a certain type of wing for example to evaluate its safety.