Simulation of Bird Strikes on Turbine Engines

[+] Author and Article Information
E. Niering

Turbinen-Union, Munich, Federal Republic of Germany

J. Eng. Gas Turbines Power 112(4), 573-578 (Oct 01, 1990) (6 pages) doi:10.1115/1.2906207 History: Received October 01, 1988; Online April 24, 2008


External components of aeroengines, such as casings and intake blades, must be capable of withstanding bird strikes. Various methods of computer simulation that have been developed are presented in summary. The most accurate and meaningful results are obtained with finite element programs specifically developed for impact events. Bird and component are divided into finite elements. The component model must allow for great elastic-plastic deformation, where the yield strength is a function of the strain rate. A model shape and a homogeneous substitute material must be defined for the complicated and nonhomogeneous structure of the bird. Bird strikes on a rotating spinner and an intake blade are investigated with the finite element program DYNA3D.

Copyright © 1990 by The American Society of Mechanical Engineers
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