Source code for pyleecan.Methods.Machine.MagnetType13.comp_surface
# -*- coding: utf-8 -*-
from numpy import arcsin, sin
[docs]def comp_surface(self):
"""Compute the Magnet surface (by analytical computation)
Parameters
----------
self : MagnetType13
A MagnetType13 object
Returns
-------
S: float
Magnet surface [m**2]
"""
# Rectangle surface
S1 = self.Hmag * self.Wmag
# opening angle
alpha = 2 * arcsin(self.Wmag / (2 * self.Rtop))
# Arc surface
S2 = (self.Rtop ** 2.0) / 2.0 * (alpha - sin(alpha))
return S1 + S2