Source code for pyleecan.Methods.Slot.SlotW26.comp_surface_active

# -*- coding: utf-8 -*-

from numpy import arcsin, sin, pi


[docs]def comp_surface_active(self): """Compute the Slot inner surface for winding (by analytical computation) Parameters ---------- self : SlotW26 A SlotW26 object Returns ------- Swind: float Slot inner surface for winding [m**2] """ # 2 half circle S1 = 0.5 * pi * self.R1 ** 2 S2 = 0.5 * pi * self.R2 ** 2 # Trapeze S3 = self.H1 * (2 * self.R1 + 2 * self.R2) / 2 # Angle of the arc (P2,C1,P7) alpha2 = 2 * arcsin(self.W0 / (2.0 * self.R1)) # Surface of arc (P2,C1,P7) in the isthmus Sarc = (self.R1 ** 2.0) / 2.0 * (alpha2 - sin(alpha2)) return S1 + S2 + S3 - Sarc