BLADE WITH NON-AXISYMMETRIC PLATFORM

摘要

Blade (10) for the bladed disc of a turbomachine comprising an aerofoil, and at least one platform at one end of the aerofoil, the blade (10) being able to be positioned, together with a plurality of substantially identical blades, in such a way as to form a ring, the platform surface exhibiting an extrados profile (80) and an intrados profile (85) along the extrados and the intrados respectively. In the blade, the intrados profile (85) has a recessed intrados part (I) situated axially in the downstream half of the aerofoil. This configuration improves the efficiency of the blade.