Bird Strike Analysis of Aircraft Engine Fan

Safety in accidental conditions is one of the important requirements an aviation jet engine must meet. It is known that one of quite possible and very dangerous accident is a bird strike into the engine in the flight. This case is characterized by the high speed impact of the bird onto rotating blades of the fan, causing large dynamic deformations of the blades and other elements which may lead to disintegration of the construction. That’s why numerical investigations of the bird strike are very important and should be implemented during design stage of a development process. The proposed paper presents some results of numerical simulations of dynamic deformations of the fan blades loaded by the bird impact, obtained by LS-DYNA code. There is an analysis of the numerical results and their verification by comparison with experimental data.

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