Prediction of transient engine loads and damage due to hollow fan blade-off

Authors

  • Nicolas Cosme Snecma Moteurs, site de Villaroche F-77550 Moissy Cramayel and Laboratoire Mécanique et Matériaux, Ecole Centrale de Nantes 1 rue de la Noë, BP 92101, F-44321 Nantes cedex 3
  • David Chevrolet Snecma Moteurs, site de Villaroche F-77550 Moissy Cramayel
  • Jérôme Bonini Snecma Moteurs, site de Villaroche F-77550 Moissy Cramayel
  • Bernard Peseux Laboratoire Mécanique et Matériaux, Ecole Centrale de Nantes 1 rue de la Noë, BP 92101, F-44321 Nantes cedex 3
  • Patrice Cartraud Laboratoire Mécanique et Matériaux, Ecole Centrale de Nantes 1 rue de la Noë, BP 92101, F-44321 Nantes cedex 3

Keywords:

Fan blade-off, non-linear transient dynamics, explicit computation, impact

Abstract

The loss of a fan blade causes serious damages on an engine and can endanger the aircraft integrity and the safety of passengers. Commercial aircraft engines must then meet the FAA (Federal Aviation Administration) and JAA (Joint Aviation Authorities) certification requirements concerning the fan blade containment. The certification is validated through a Fan Blade-Off (FBO) test on a whole engine. The success in this test requires destructive and expensive development tests performed at the different stages of the design process. To reduce the number of these experiments and thus, the costs and the time of development, the engine behaviour under FBO can be understood and even predicted thanks to finite element (FE) analysis. This paper shows a comparison between a FBO simulation of hollow blades, computed with an explicit integration FE code, and experimental data obtained during an intermediate FBO test carried out by Snecma Moteurs. The results of the load levels and the similarity on the sequence of events show good agreement.

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References

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Published

2002-11-14

How to Cite

Cosme, N., Chevrolet, D. ., Bonini, J. ., Peseux, B. ., & Cartraud, P. . (2002). Prediction of transient engine loads and damage due to hollow fan blade-off. European Journal of Computational Mechanics, 11(5), 651–666. Retrieved from https://journals.riverpublishers.com/index.php/EJCM/article/view/2557

Issue

2002: Vol 11 Iss 5

Section

Original Article

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