Abstract

Aircraft wings are slender because of their high aspect ratios resulting from large spans and they are susceptible to vibration problems. Hence, in the design of aircraft wings, frequency analysis is a very important input. In this work dynamic behavior of Boeing 747-400 (having aerofoil number BAC 465) aircraft wing is carried out using finite element analysis. A CAD model of the wing is prepared including aerofoil, the engine attached to the wing and the details of the winglet. Detailed frequency analysis in the range 0–300 Hz of the wing with respect to maximum displacement and von Mises stress is conducted. The results obtained are useful inputs for analyzing resonant frequencies and the design of the wing.

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