print 'Hub system total: {0:8.1f} kg'.format(hub.hub_system_mass) # 50458.95 print ' cm {0:6.2f} {1:6.2f} {2:6.2f} [m, m, m]'.format( hub.hub_system_cm[0], hub.hub_system_cm[1], hub.hub_system_cm[2]) print ' I {0:6.1f} {1:6.1f} {2:6.1f} [kg*m^2, kg*m^2, kg*m^2]'.format( hub.hub_system_I[0], hub.hub_system_I[1], hub.hub_system_I[2]) print # 4 --------- # 5 --------- # test of drivetrain model # NREL 5 MW Rotor Variables nace = DriveWPACT() nace.rotor_diameter = 126.0 # m nace.rotor_speed = 12.1 # rpm m/s nace.machine_rating = 5000.0 nace.DrivetrainEfficiency = 0.95 nace.rotor_torque = 1.5 * (nace.machine_rating * 1000 / nace.DrivetrainEfficiency) / ( nace.rotor_speed * (pi / 30)) # 6.35e6 #4365248.74 # Nm nace.rotor_thrust = 2.5448e5 nace.rotor_mass = 142585.75 #kg nace.rotor_speed = 12.1 #rpm # NREL 5 MW Drivetrain variables nace.drivetrain_design = 'geared' # geared 3-stage Gearbox with induction generator machine nace.gear_ratio = 96.76 # 97:1 as listed in the 5 MW reference document nace.gear_configuration = 'eep' # epicyclic-epicyclic-parallel
print ' Pitch system: {0:8.1f} kg'.format(hub.pitchSystem.mass) # 17003.98 print ' Nose cone: {0:8.1f} kg'.format(hub.spinner.mass) # 1810.50 print 'Hub system total: {0:8.1f} kg'.format(hub.hub_system_mass) # 50458.95 print ' cm {0:6.2f} {1:6.2f} {2:6.2f} [m, m, m]'.format(hub.hub_system_cm[0], hub.hub_system_cm[1], hub.hub_system_cm[2]) print ' I {0:6.1f} {1:6.1f} {2:6.1f} [kg*m^2, kg*m^2, kg*m^2]'.format(hub.hub_system_I[0], hub.hub_system_I[1], hub.hub_system_I[2]) print # 4 --------- # 5 --------- # test of drivetrain model # NREL 5 MW Rotor Variables nace = DriveWPACT() nace.rotor_diameter = 126.0 # m nace.rotor_speed = 12.1 # rpm m/s nace.machine_rating = 5000.0 nace.DrivetrainEfficiency = 0.95 nace.rotor_torque = 1.5 * (nace.machine_rating * 1000 / nace.DrivetrainEfficiency) / (nace.rotor_speed * (pi / 30)) # 6.35e6 #4365248.74 # Nm nace.rotor_thrust = 2.5448e5 nace.rotor_mass = 142585.75 #kg nace.rotor_speed = 12.1 #rpm # NREL 5 MW Drivetrain variables nace.drivetrain_design = 'geared' # geared 3-stage Gearbox with induction generator machine nace.gear_ratio = 96.76 # 97:1 as listed in the 5 MW reference document nace.gear_configuration = 'eep' # epicyclic-epicyclic-parallel nace.bevel = 0 # no bevel stage nace.crane = True # onboard crane present