=========================
**Torque/force, no-load**
=========================

.. admonition:: Call: cogging torque Rotating Machine (*r/phi-coordinate-system*)

 Data for the **"Cogging Torque/Force"** procedure

 m.move_action       =        0.000  -- Move Action: rotate=0; linear=1
 m.arm_length        =       50.000  -- Effect. armature length          [mm]
 m.num_pol_pair      =        2.000  -- Number of Pole pairs           (>= 1)
 m.npols_gen         =        4.000  -- Number of Poles simulated      (>= 1)
 m.skew_angle        =        0.000  -- Skew angle                   [Deg;mm]
 m.nu_skew_steps     =        0.000  -- No of skew sect: >0:finite;0:infinite
 m.eval_force1       =        0.000  -- Evaluate force density:no = 0;yes > 0
 m.fc_radius1        =       25.000  -- Air-gap center 1:radius/position [mm]
 m.fc_radius2        =        0.000  -- Air-gap center 2:radius          [mm]
 m.nu_force_pat      =        0.000  -- Number of extra force pathes < = 3
 m.magn_temp         =       20.000  -- Temperature Magnet            [Deg C]
 m.speed             =     3000.000  -- Speed: rotate                 [1/min]
 m.num_par_wdgs      =        1.000  -- Number of parallel Windings   (>= 1)
 m.nu_move_steps     =       46.000  -- Number of move steps
 m.range_phi         =       90.000  -- Move range angle
 m.phi_start         =        0.000  -- Start angle
 m.fc_mult_move_type =        0.000  -- Type of move path in air gap \n
 m.period_frac       =        1      -- Fraction of rotation range: 1 full, 6: 1/6 Period
 m.pocfilename       =    'xyz.poc'
 run_models("cogg_calc")

 .. image:: cogging_torque_calculation.png
 
.. admonition:: Call: Linear Machine (*x/y- and r/z-coordinate-system*)

 Data for the **"Cogging Torque/Force"** procedure
 
 **Example for the call:**
 ::
 
  -- Movement in x-direction 
   m.move_action     =          1.000 --   Move Action: rotate=0; linear=1
   m.arm_length      =        700.000 --   Effect. armature length          [mm]
   m.npols_gen       =          1.000 --   Number of Sectors simulated   (>= 1)
   m.two_pole_wi     =         72.000 --   2 X pole width                   [mm]
   m.skew_linear     =          0.000 --   Skew displacement                [mm]
   m.nu_skew_steps   =          0.000 --   No of skew sect: >0:finite;0:infinite
   m.eval_force1     =          0.000 --   Evaluate force density:no = 0;yes > 0
   m.line            =          1.000 --   Move path: line: 0 ; poly line: 1
   m.nu_force_pat    =          0.000 --   Number of extra force pathes < = 3
   m.magn_temp       =         20.000 --   Temperature Magnet            [Deg C]
   m.speed_linear    =         30.000 --   Speed:  linear                  [m/s]
   m.num_par_wdgs    =          1.000 --   Number of parallel Windings   (>= 1)
   m.nu_move_steps   =         73.000 --   Number of move steps
   m.range_x         =         72.000 --   Move range x [mm]
   m.range_y         =          0.000 --   Move range y [mm] \n

   m.fc_mult_move_type =        1.000 --   Type of move path in air gap
   m.fc_force_points   =        5.000 --   number move points in air gap
   m.fcpx_mm1        =         -1.000 --   x-coord of polyline [mm]
   m.fcpy_mm1        =        101.500 --   y-coord of polyline [mm]
   m.fcpx_mm2        =         72.500 --   x-coord of polyline [mm]
   m.fcpy_mm2        =        101.500 --   y-coord of polyline [mm]
   m.fcpx_mm3        =         72.500 --   x-coord of polyline [mm]
   m.fcpy_mm3        =        118.500 --   y-coord of polyline [mm]
   m.fcpx_mm4        =         -1.000 --   x-coord of polyline [mm]
   m.fcpy_mm4        =        118.500 --   y-coord of polyline [mm]
   m.fcpx_mm5        =         -1.000 --   x-coord of polyline [mm]
   m.fcpy_mm5        =        101.500 --   y-coord of polyline [mm] \n

   m.pocfilename    = 'xyz.poc'
   run_models("cogg_calc")

.. image:: cogging_force_calculation.png