Modares Mechanical Engineering

Modares Mechanical Engineering

Dynamic Response of the aircraft to wind shear using multibody loading ‎approach ‎

Author
Ali poormoradi
Aerospace engineering Dept./ Amirkabir University
Abstract
‎* P.O.B.1591634311, 424 Hafez Ave., Tehran, Iran, sabzeh@aut.ac.ir

Abstract

Microburst wind shear is very dangerous and threatening for aircraft in low altitude flight, which makes aircraft uncontrollable and also difficult ‎in forecasting and detection. This is consequential research in order to make the aircraft controllable when encountering the phenomenon. Most ‎studies‏ ‏have simulated aircraft encountering the microburst by applying single body model. This model, consider location of microburst on the ‎aircraft center of gravity, where microburst must be applied all through fuselage, wing and tail combination. For more realistic simulation, ‎microburst should be applied to more points of aircraft body in addition to C.G., which is known as developed multi-body model. Applying the ‎influence of wind gradients to aircraft body is the advantage of this model. In this paper, results of both single and multi-body was conducted and ‎compared. In comparison of single body model with existing methods in references, has provided a proper consistency with the tolerance of 10%. ‎Considerable results have shown in comparison of single-body and multi-body model in accordance to flight trajectory response, heading angle ‎and pitching moment to wind shear model and the ability of the multi-body model for modeling of aircraft realistic flight encountering microburst ‎has been proved.‎
Keywords
Microburst
Wind shear
multi-body model
single-body model
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Modares Mechanical Engineering
Volume 18, Issue 2
April 2018
Pages 243-252