LPF blade root bending signal at 1/3 flapwise freq

ROSCO_toolbox/utilities.py

@@ -447,7 +447,7 @@ def write_param_file(self, turbine, controller, param_file='DISCON.IN', txt_file
         file.write('{:<10.5f}{:<9.5f} ! F_NotchBetaNumDen	- Two notch damping values (numerator and denominator, resp) - determines the width and depth of the notch, [-]\n'.format(0.0,0.25))
         file.write('{:<014.5f}      ! F_SSCornerFreq    - Corner frequency (-3dB point) in the first order low pass filter for the setpoint smoother, [rad/s].\n'.format(controller.ss_cornerfreq))
         file.write('{:<10.5f}{:<9.5f} ! F_FlCornerFreq    - Corner frequency and damping in the second order low pass filter of the tower-top fore-aft motion for floating feedback control [rad/s, -].\n'.format(turbine.ptfm_freq, 1.0))
-        file.write('{:<10.5f}{:<9.5f} ! F_FlpCornerFreq    - Corner frequency and damping in the second order low pass filter of the blade root bending moment for flap control [rad/s, -].\n'.format(turbine.bld_flapwise_freq*1/2, 0.7))
+        file.write('{:<10.5f}{:<9.5f} ! F_FlpCornerFreq    - Corner frequency and damping in the second order low pass filter of the blade root bending moment for flap control [rad/s, -].\n'.format(turbine.bld_flapwise_freq*1/3, 1.0))
 
         file.write('\n')
         file.write('!------- BLADE PITCH CONTROL ----------------------------------------------\n')