def make_example_ship(mso_mode: int):
main_engine_capacity = 2160e3
diesel_gen_capacity = 510e3
hybrid_shaft_gen_as_generator = 'GEN'
hybrid_shaft_gen_as_motor = 'MOTOR'
hybrid_shaft_gen_as_offline = 'OFF'
ship_config = ShipConfiguration(
coefficient_of_deadweight_to_displacement=0.7,
bunkers=200000,
ballast=200000,
length_of_ship=80,
width_of_ship=16,
added_mass_coefficient_in_surge=0.4,
added_mass_coefficient_in_sway=0.4,
added_mass_coefficient_in_yaw=0.4,
dead_weight_tonnage=3850000,
mass_over_linear_friction_coefficient_in_surge=130,
mass_over_linear_friction_coefficient_in_sway=18,
mass_over_linear_friction_coefficient_in_yaw=90,
nonlinear_friction_coefficient__in_surge=2400,
nonlinear_friction_coefficient__in_sway=4000,
nonlinear_friction_coefficient__in_yaw=400)
env_config = EnvironmentConfiguration(
current_velocity_component_from_north=0,
current_velocity_component_from_east=0,
wind_speed=0,
wind_direction=0)
pto_mode_params = MachineryModeParams(
main_engine_capacity=main_engine_capacity,
electrical_capacity=0,
shaft_generator_state=hybrid_shaft_gen_as_generator)
pto_mode = MachineryMode(params=pto_mode_params)
mec_mode_params = MachineryModeParams(
main_engine_capacity=main_engine_capacity,
electrical_capacity=diesel_gen_capacity,
shaft_generator_state=hybrid_shaft_gen_as_offline)
mec_mode = MachineryMode(params=mec_mode_params)
pti_mode_params = MachineryModeParams(
main_engine_capacity=0,
electrical_capacity=2 * diesel_gen_capacity,
shaft_generator_state=hybrid_shaft_gen_as_motor)
pti_mode = MachineryMode(params=pti_mode_params)
mso_modes = MachineryModes([pto_mode, mec_mode, pti_mode])
machinery_config = MachinerySystemConfiguration(
hotel_load=200e3,
machinery_modes=mso_modes,
rated_speed_main_engine_rpm=1000,
linear_friction_main_engine=68,
linear_friction_hybrid_shaft_generator=57,
gear_ratio_between_main_engine_and_propeller=0.6,
gear_ratio_between_hybrid_shaft_generator_and_propeller=0.6,
propeller_inertia=6000,
propeller_diameter=3.1,
propeller_speed_to_torque_coefficient=7.5,
propeller_speed_to_thrust_force_coefficient=1.7,
max_rudder_angle_degrees=30,
rudder_angle_to_yaw_force_coefficient=500e3,
rudder_angle_to_sway_force_coefficient=50e3)
simulation_setup = SimulationConfiguration(
route_name='none',
initial_north_position_m=0,
initial_east_position_m=0,
initial_yaw_angle_rad=0 * np.pi / 180,
initial_forward_speed_m_per_s=0,
initial_sideways_speed_m_per_s=0,
initial_yaw_rate_rad_per_s=0,
initial_propeller_shaft_speed_rad_per_s=0 * np.pi / 30,
machinery_system_operating_mode=mso_mode,
integration_step=0.5,
simulation_time=500)
return ShipModel(ship_config, machinery_config, env_config,
simulation_setup)
added_mass_coefficient_in_sway=0.4,
added_mass_coefficient_in_yaw=0.4,
dead_weight_tonnage=3850000,
mass_over_linear_friction_coefficient_in_surge=130,
mass_over_linear_friction_coefficient_in_sway=18,
mass_over_linear_friction_coefficient_in_yaw=90,
nonlinear_friction_coefficient__in_surge=2400,
nonlinear_friction_coefficient__in_sway=4000,
nonlinear_friction_coefficient__in_yaw=400)
env_config = EnvironmentConfiguration(current_velocity_component_from_north=0,
current_velocity_component_from_east=0,
wind_speed=0,
wind_direction=0)
pto_mode_params = MachineryModeParams(
main_engine_capacity=main_engine_capacity,
electrical_capacity=0,
shaft_generator_state=hybrid_shaft_gen_as_generator)
pto_mode = MachineryMode(params=pto_mode_params)
mec_mode_params = MachineryModeParams(
main_engine_capacity=main_engine_capacity,
electrical_capacity=diesel_gen_capacity,
shaft_generator_state=hybrid_shaft_gen_as_offline)
mec_mode = MachineryMode(params=mec_mode_params)
pti_mode_params = MachineryModeParams(
main_engine_capacity=0,
electrical_capacity=2 * diesel_gen_capacity,
shaft_generator_state=hybrid_shaft_gen_as_motor)
pti_mode = MachineryMode(params=pti_mode_params)