STRESS--STRAIN STATE OF ICE COVER DURING AIRCRAFT TAKEOFF AND LANDING
A. V. Pogorelova1, V. M. Kozin2, A. A. Matyushina3
1Institute of Engineering and Metallurgy, Far Eastern Branch, Russian Academy of Sciences, Komsomol'sk-on-Amur, 681005 Russia milova@yandex.ru 2Komsomol'sk-on-Amur State Technical University, Komsomol'sk-on-Amur, 681013 Russia kozinvictor@rambler.ru 3Amur Humanitarian and Pedagogical State University, Komsomol'sk-on-Amur, 681000 Russia amatiushina@gmail.com
Keywords: несжимаемая жидкость, упругая пластина, нестационарное движение, самолет, incompressible liquid, elastic plate, unsteady motion, aircraft
Abstract
We consider the linear unsteady motion of an IL-76TD aircraft on ice. Water is treated as an ideal incompressible liquid, and the liquid motion is considered potential. Ice cover is modeled by an initially unstressed uniform isotropic elastic plate, and the load exerted by the aircraft on the ice cover with consideration of the wing lift is modeled by regions of distributed pressure of variable intensity, arranged under the aircraft landing gear. The effect of the thickness and elastic modulus of the ice plate, takeoff and landing regimes on stress-strain state of the ice cover used as a runway.
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