turbomachinery; vibration; tip-rub; optimisation; reduced order modelling
Abstract :
[en] Tip-rub events, also called blade-casing interactions, are problematic structural phenomena that can lead to complete engine failure. In this work the tip-rub phenomenon is studied through the prism of a promising physical quantity called clearance consumption, which allows to simply assess the behaviours of a blade experiencing blade-casing interactions. An automated workflows has been implemented in SALOME-MECA and its sub-modules, to perform simple and fast parametric studies and shape optimizations. The methodology is applied to a modified version of a NASA Rotor 37 blade and the influence of different geometry parameters is studied. The obtained results are compared to time domain
simulation.
Disciplines :
Aerospace & aeronautics engineering
Author, co-author :
Salles, Loïc ; Université de Liège - ULiège > Département d'aérospatiale et mécanique > Vibration of Turbomachines ; Imperial College London > Mechanical Engineering > Vibration University Technology Centre
de Cherisey, Marin
Vizzaccaro, Alessandra
Language :
English
Title :
Optimisation of blade shape for reducing vibration during tip-rub event
