METHOD FOR DESIGNING A COMMON PREFORM FOR PRODUCING TURBOMACHINE OUTPUT GUIDE PREFORMS IN COMPOSITE MATERIAL WITH DIFFERENT GEOMETRIC PROFILES

摘要

The invention relates to a method for designing a common preform for the production of several preforms of turbomachine output vanes of composite material with different geometrical profiles, the method comprising the geometric modeling in 3D of the geometrical profiles (100) of the different preforms of exit guide vanes, the flattening of each of the geometrical profiles of the different exit guide vane preforms, the superposition of the geometrical profiles of the different exit guide vanes preforms laid flat, and the convergence toward a single geometrical profile of the common exit guide vanes preform for all exit guide vanes preforms while ensuring identical positioning of the upper delignations and lower delignations for all exit guide vanes preforms .