METHOD FOR MODELLING NON-STREAMLINED PROPELLER BLADE Russian patent published in 2018 - IPC B64C11/16 G06F17/50 

FIELD: computing; counting.

SUBSTANCE: present invention relates to a method for modelling at least a part of blade (2) of non-streamlined propeller (1), having offset (3). Method comprises steps performed using data processing means (11) of device (10): (a) parameterisation of at least one Bézier curve representing a deformation of said blade (2) characterising offset (3), wherein the curve is defined by: a. first and second end control points (PCU_i, PCU_K), which determine the extent of said section of the blade; b. at least one intermediate control point located between end points (PCU₁, PCU_K), the parameterisation being implemented according to at least one deformation parameter and said cutting height in blade (2), on the basis of which the abscissa of the intermediate control point (PCU_i) and the ordinate of the second end point (PCU_K) are expressed; (b) determination of optimised values of the deformation parameter or parameters; (c) outputting the values determined in this way to interface (13) of said device (10).

EFFECT: providing aeroacoustic characteristics of the propeller.

15 cl, 7 dwg