TURBINE RING ASSEMBLY RETAINED IN THE MANNER OF A DOG CLUTCH

摘要

A turbine ring assembly comprises a plurality of ring sectors (10) made of ceramic matrix composite material, forming a turbine ring (1) and a ring support structure (3) secured to a turbine casing (30) and comprising two annular flanges (32, 54), each ring sector (10) having two lugs (14, 16) held between the two annular flanges (32, 36) of the ring support structure (3). The ring support structure comprises an annular retaining flange mounted on the turbine casing, the annular retaining flange comprising an annular web forming one (36) of the flanges of the ring support structure. The two annular flanges (32, 54) of the ring support structure (3) applies stress to the lugs (14, 16) of the rings sectors (10). One (54) of the flanges of the ring support structure (3) is elastically deformable in the axial direction (DA) of the turbine ring (1). The retaining flange comprises a first series of teeth (52) distributed circumferentially on said retaining flange, whereas the turbine casing comprises a second series of teeth (35) distributed circumferentially on said casing and in that the teeth of the first series of teeth and the teeth of the second series of teeth form a circumferential dog clutch.