Numerical Assessment of the Aircraft Cabin Glazing Resistance to a Bird Impact using the Experimental Planning Theory Apparatus and Regression Analysis

Abstract

The article presents a method for numerical assessment of the aircraft cabin glazing resistance to a bird impact based on the experiment planning theory apparatus and the regression analysis. It considers the proposed method for presenting results of assessing the glazing resistance to a bird impact (structural optics products) in the form of a numerical value polynomial dependence of the glazing material tensile stress on a set of independently acting input factors (aircraft flight velocity, bird mass and the angle of impact with an obstacle). The experience in developing, creating, testing and operating the military aircraft glazing systems confirms the need for research in this scientific and practical area. Numerical studies of bird collisions with the aircraft structural elements protruding into the oncoming air flow are successfully performed for a long time. The "machine" experiment, in accordance with the experiment planning theory, reproduces simultaneously an alteration in all the factors. The conducted study covers suitability of the methodological and algorithmic support for procedures in assessing the aircraft cabin glazing resistance to a bird impact at all stages of testing, including the state ones, as well as a possibility of using this approach that makes it possible to optimize the testing process itself when satisfying the criteria of the experiment rotatable central compositional planning. Presence of the significant coefficients in interactions of the factors and quadratic values indicate correctness in selecting the approximating equation form and rotatable central compositional planning of the second order as the experiment plan. The paper proposes to use the approximation model of a bird collision with the glazing to solve the problems of assessing the structure resistance to a bird impact and recommends it for practical application at the interested enterprises and organizations

Please cite this article in English as:

Mikhalev S.G. Numerical assessment of the aircraft cabin glazing resistance to a bird impact using the experimental planning theory apparatus and regression analysis. Herald of the Bauman Moscow State Technical University, Series Instrument Engineering, 2025, no. 3 (152), pp. 88--104 (in Russ.). EDN: QFEHUC

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