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Communication Dans Un Congrès Année : 2009

Integration of multiple physical behaviours into a geometric tolerancing approach

Résumé

The performance of a helicopter engine depends essentially on the performance of the high-pressureturbine, closely correlated with the rotor/stator clearance at the tip of the blades. The engine’sthermodynamic cycle causes elastic or plastic strains on some of the high-pressure turbine components,causing considerable geometric variations, some of which are irreversible.In this article we propose to integrate the notion of behaviour into the evaluation of clearance in a highpressureturbine by defining the physical phenomena that are influential during certain operational phasesand more generally over the lifetime of the turbine. Modelling the variations in the geometric deviations ofthe parts and the contacts is based on deviation hulls and clearance hulls.
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Dates et versions

hal-01094189 , version 1 (11-12-2014)

Licence

Paternité - Pas d'utilisation commerciale - Pas de modification

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  • HAL Id : hal-01094189 , version 1

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Laurent Pierre, Denis Teissandier, Jean-Pierre Nadeau. Integration of multiple physical behaviours into a geometric tolerancing approach. 11th CIRP International Conference on Computer Aided Tolerancing, Mar 2009, Annecy, France. ⟨hal-01094189⟩
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