Traitement d'impact fluide-solide par Ia methode particulaire SPH

Application: ingestion d'oiseau par les turboreacteurs

作者

  • Hariddh Bung CEA-DMT, Centre d'Etudes de Saclay- F-91 191 Gif-sur-Yvette
  • Marc Berthillier SNECMA, Site de Villaroche, F-77550 Moissy-Cramayel
  • Stt~phane Audic SNECMA, Site de Villaroche, F-77550 Moissy-Cramayel
  • Alain Combescure LMT /ENS Cachan, 61, Avenue du President Wilson, F-94235 Cachan cedex

关键词:

impact, fluid-solid, Lagrange, Euler, SPH, finite elements, explicit dynamic

摘要

A SPH method has been developed for the simulation of soft impacts of a fluid on a structure. The SPH method is coupled to a finite element method using a slave-master contact impact algorithm. An implementation has been peiformed in the Castem-Plexus explicit code. It is applied to bird swalling simulation in a turboreactor engine. The final strains and deformed shapes of the turbine blades are correctly predicted and the computation times are reasonable enough to do industrial applications.

##plugins.generic.usageStats.downloads##

##plugins.generic.usageStats.noStats##

参考

[COM 99] COMBESCURE A., Methodes sans elements, Rapport interne no 222, LMT-Cachan,

fevrier 1999.

[JOH 89] JOHNSON G.R., STRYK R.A., «Dynamic three dimensional computations for solids

with variable nodal connectivity>>, Inter. Journal For Num. Methods, (28), 1989.

[JOH 93) JOHNSON G.R., PETERSEN E., STRYK R.A., «Incorporation of an SPH option into

the epic code for wide range of high velocity impact computations >>, Inter. Journal of

Impact Engineering, (14), 1993.

[LEG 98] LEGAY A., LERAY D., PLEXUS: introduction de Ia viscosite dans Ia methode SPH,

Rapport CEA, SEMT/DYN/RT/98.040/ A, 1998.

[LET 96) LETELLIER A., Contribution a Ia modelisation d'oiseaux sur les aubes des reacteurs,

These de doctorat, Universite d'Evry, juin 1996.

[LET 97] LETELLIER A., BERTHILLIER M., BUNG H., GALON P., Bird impact on fan blade

analysis using SPH Method coupled with finite Elements, Symposium on Structures

Under Extreme Loading Conditions, Orlando, 1997.

[MON 77] MONAGHAN J.J., GINGOLD R.A., << Smoothed Particle Hydrodynamics : theory

andapplications to non-spherical stars >>, Montly Notices of The Royal Astronomical

Society, (181 ), 1977.

[NIE 90] NIERING E., « Simulation of bird strikes on turbine engines >>, Journal of

Engineering for Gas Turbines and Power, 112, p. 573-578, Oct., 1990.

[VIG 95] VIGNOLLES P., BUSSONET P.X., and TALBOTEC J., «Conception des aubes fan

soumises a I' impact d'oiseaux >>,AGARD CP, 1995.

[WIL 78] WILBECK J., Impact behavior of low stength projectiles, Technical Report 77-134,

Air Force Material Laboratory, Wright-Patterson Air Force Base, Ohio 45433, 1978.

##submission.downloads##

已出版

2000-02-29

栏目

Original Article

##plugins.generic.recommendByAuthor.heading##

1 2 > >>