Simulation of Bird Collision with Aircraft Laminated Glazing

Abstract

Aircraft collisions with birds are a severe safety problem. The purpose of this paper is to create a closed-form mathematical collision model that estimates the response of a laminated airplane glazing to bird impact and provides a risk score that can be utilized to underpin decisions made by engineers and designers. The collision model includes a bird impulse model, and a method for analyzing the stress-strained state of laminated airplane glazing at different operational factors is presented. The technique consists of a method for strength analysis of the laminated airplane glazing at bird impact and a method for analyzing superfluous pressure. The laminated glazing model is based on the refined theory accounting for transverse shear strains, thickness reduction, and normal element rotation inertia of each layer. The mathematical model of pressure impulse authentically reproducing bird impact is based on experimental research. Theoretical results are in good agreement with experimental data, allowing recommending the method for developing new airplane glazing elements.