Experimental Investigation of Dynamical Blade-casing Contacts in Aircraft Engines
Rotor-Stator contacts occurring between the rotating blade and the casing of an aircraft engine compressor involve various wear processes and strongly influence the performances and service life of aircraft engines. To improve the understanding of these complex phenomena, a simplified approach, considering only high speed orthogonal cutting conditions, was investigated. Blade-casing contacts were simulated thanks to an original experimental device specially designed to study high speed interactions. It was made up of a ballistic bench projecting a sample of abradable material (M601) against a tool representing the simplified blade shape. The interaction force was measured by a piezoelectric force sensor. In order to increase significantly the measurement system bandwidth and to measure accurately the high speed interaction forces, a correction method based on the principle of modal analysis was developed and successfully employed. The influences of the interaction speed (in the range of 60 m/s to 270 m/s) and of the incursion depth on the interaction force were investigated. The tests results showed that the mean interaction force increased with the velocity with a non-linear relation which was consistent with a viscous behaviour of the abradable material M601.
M.Cuny S.Philippon P.Chevrier F.Garcin
Laboratory of mechanics, Biomechanics, Polymers, Structures (La.B.P.S.), EA 4632, ENIM, 1 route dAr SNECMA, site de Villaroche, Moissy-Cramayel, France
国际会议
The 4th International Conference on Mechanical Engineering and Mechanics(第四届国际机械工程与力学会议)
苏州
英文
459-463
2011-08-11（万方平台首次上网日期，不代表论文的发表时间）