公开(公告)号：US10387611B2

公开(公告)日：2019-08-20

申请号：US15517185

申请日：2015-10-08

Applicant: Safran Aircraft Engines

Inventor： Cyril Verbrugge ,  Clement Marcel Maurice Dejeu ,  Anthony Pascal Eloi Louet ,  Jonathan Evert Vlastuin

IPC: G06F17/50 ,  B64C11/18 ,  B64D27/00

Abstract: A method for modeling an offset portion of a blade of a non-ducted propeller is provided. The method includes: parametrizing a C1-class curve representing a deformation of the blade characterizing the offset, according to a position along a section at a given height in the blade, the curve intersecting consecutively through a first bend control point, a central control point, and a second bend control point, the first and second bend control points defining the extent of the blade section, the parametrization being implemented according to a first deformation parameter defining the abscissa of the central control point, a second parameter of deformation defining the ordinate of the second bend point, and a third deformation parameter defining the angle of the tangent to the curve at the second bend control point; optimizing one of the deformation parameters; and plotting the values of the optimized parameters on an interface.