Fea Cyclic Symmetric Fatigue Analysis of Aircraft Wheels

Document Number: 2002-01-3001

Date Published: November 2002

Author(s):
Joseph P. Pajot - Honeywell Aircraft Landing Systems
Bradley E. Fish - Honeywell Aircraft Landing Systems
Delbert K. Patterson - Honeywell Aircraft Landing Systems

Abstract:
The objective of this paper is to describe an approach that uses Finite Element Analysis (FEA) for performing efficient fatigue analysis of aircraft wheels.

In general, a FEA of an aircraft wheel requires a complete three-dimensional, 360\mD finite element model. Rather than analyzing a rotating wheel, a stationary wheel model is used to describe the rotating wheel's stress history. The stress history is developed by applying a load at successive, angular positions around the wheel. While simpler than analyzing a rotating wheel, this method still requires a large number of FE solutions.

This study looks at an alternative approach that takes advantage of the cyclic symmetry that is common in most aircraft wheels. Cyclic symmetry allows a wheel to be described as a repeating section and it can minimize the number of FE solutions required to develop a wheel's stress history. This paper addresses the nature of cyclic symmetry and the extent to which it may be utilized.

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Product Status: In Stock

See other papers presented at World Aviation Congress _® & Display, November 2002, Phoenix, AZ, USA, Session: Fracture / Fatigue

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