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Merged
planes merged 9 commits into from
Dec 26, 2020
Merged

Feature 2point3 #21

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e1425b0
Updating tutorial scripts
rachealerhard Dec 23, 2020
cf8d501
Updated tutorial scripts
rachealerhard Dec 24, 2020
9c9bf17
faster regional jet
planes Dec 24, 2020
e7b1a21
removing temporary files
planes Dec 24, 2020
8e8c2b8
solar UAVs
planes Dec 25, 2020
573d52e
regional jet
planes Dec 25, 2020
ce52e5a
small cleanups in regional jet
planes Dec 26, 2020
64494c6
finished optimization tutorials
planes Dec 26, 2020
14127a3
coarse plot
planes Dec 26, 2020
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solar UAVs
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@planes
planes committed Dec 25, 2020
commit 8e8c2b8b20b5c1723f386555957bd887bf789dd4
6 changes: 6 additions & 0 deletions Solar_UAV_Optimization/Analyses.py
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Expand Up @@ -8,6 +8,8 @@
# ----------------------------------------------------------------------

import SUAVE
from SUAVE.Core import Units
import numpy as np

# ----------------------------------------------------------------------
# Setup Analyses
Expand Down Expand Up @@ -54,6 +56,10 @@ def base(vehicle):
# ------------------------------------------------------------------
aerodynamics = SUAVE.Analyses.Aerodynamics.Fidelity_Zero()
aerodynamics.geometry = vehicle
aerodynamics.settings.number_spanwise_vortices = 10
aerodynamics.settings.number_chordwise_vortices = 2
aerodynamics.process.compute.lift.inviscid_wings.training.angle_of_attack = np.array([[-5., 0.0, 5.0, 10.0, 75.]]).T * Units.deg
aerodynamics.process.compute.lift.inviscid_wings.training.Mach = np.array([[0.0, 0.2, 0.3, 0.9, 1.3, 1.35, 1.5, 2.0]]).T
analyses.append(aerodynamics)

# ------------------------------------------------------------------
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3 changes: 2 additions & 1 deletion Solar_UAV_Optimization/Missions.py
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Expand Up @@ -54,7 +54,8 @@ def mission(analyses,vehicle):
# connect vehicle configuration
segment.analyses.extend(analyses.base)

# segment attributes
# segment attributes
ones_row = segment.state.numerics.ones_row
segment.state.numerics.number_control_points = 50
segment.dynamic_pressure = 115.0 * Units.pascals
segment.start_time = time.strptime("Tue, Jun 21 11:00:00 2020", "%a, %b %d %H:%M:%S %Y",)
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10 changes: 5 additions & 5 deletions Solar_UAV_Optimization/Optimize.py
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Expand Up @@ -48,11 +48,11 @@ def setup():

# [ tag , initial, [lb,ub], scaling, units ]
problem.inputs = np.array([
[ 'wing_area' , 0.62, ( 0.1, 1.5 ), 0.5, Units.meter ],
[ 'aspect_ratio' , 13.5, ( 5.0, 20.0 ), 10.0, Units.less ],
[ 'dynamic_pressure', 115.0, ( 1.0, 2000.0 ), 125.0, Units.pascals ],
[ 'solar_ratio' , 0.0, ( 0.0, 0.97), 1.0, Units.less ],
[ 'kv' , 900.0, ( 10.0, 1500.0 ), 800.0, Units['rpm/volt']],
[ 'wing_area' , 0.5, ( 0.1, 1.5 ), 0.5, Units.meter ],
[ 'aspect_ratio' , 10.0, ( 5.0, 20.0 ), 10.0, Units.less ],
[ 'dynamic_pressure', 125.0, ( 1.0, 2000.0 ), 125.0, Units.pascals ],
[ 'solar_ratio' , 0.0, ( 0.0, 0.97), 1.0, Units.less ],
[ 'kv' , 800.0, ( 10.0, 10000.0 ), 800.0, Units['rpm/volt']],
])

# -------------------------------------------------------------------
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16 changes: 8 additions & 8 deletions Solar_UAV_Optimization/Vehicles.py
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Expand Up @@ -38,9 +38,9 @@ def base_setup():
# Vehicle-level Properties
# ------------------------------------------------------------------
# mass properties
vehicle.mass_properties.takeoff = 6.75 * Units.kg
vehicle.mass_properties.operating_empty = 6.75 * Units.kg
vehicle.mass_properties.max_takeoff = 6.75 * Units.kg
vehicle.mass_properties.takeoff = 4.00 * Units.kg
vehicle.mass_properties.operating_empty = 4.00 * Units.kg
vehicle.mass_properties.max_takeoff = 4.00 * Units.kg

# basic parameters
vehicle.reference_area = 1.0
Expand Down Expand Up @@ -178,17 +178,17 @@ def base_setup():

# Component 5 the Motor
motor = SUAVE.Components.Energy.Converters.Motor_Lo_Fid()
motor.speed_constant = 800. * Units['rpm/volt'] # RPM/volt is standard
motor.speed_constant = 900. * Units['rpm/volt'] # RPM/volt is standard
motor = size_from_kv(motor)
motor.gear_ratio = 1. # Gear ratio, no gearbox
motor.gearbox_efficiency = 1. # Gear box efficiency, no gearbox
motor.motor_efficiency = 0.825;
motor.motor_efficiency = 0.8;
net.motor = motor

# Component 6 the Payload
payload = SUAVE.Components.Energy.Peripherals.Payload()
payload.power_draw = 0. #Watts
payload.mass_properties.mass = 0.0 * Units.kg
payload.mass_properties.mass = 1.0 * Units.kg
net.payload = payload

# Component 7 the Avionics
Expand All @@ -198,8 +198,8 @@ def base_setup():

# Component 8 the Battery
bat = SUAVE.Components.Energy.Storages.Batteries.Constant_Mass.Lithium_Ion()
bat.mass_properties.mass = 5.0 * Units.kg
bat.specific_energy = 250. *Units.Wh/Units.kg
bat.mass_properties.mass = 3.0 * Units.kg
bat.specific_energy = 200. *Units.Wh/Units.kg
bat.resistance = 0.003
initialize_from_mass(bat,bat.mass_properties.mass)
net.battery = bat
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2 changes: 1 addition & 1 deletion tut_solar_uav.py
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Expand Up @@ -16,7 +16,7 @@
from SUAVE.Plots.Mission_Plots import *
from SUAVE.Components.Energy.Networks.Solar import Solar
from SUAVE.Methods.Propulsion import propeller_design
from SUAVE.Methods.Power.Battery.Sizing import initialize_from_energy_and_power, initialize_from_mass
from SUAVE.Methods.Power.Battery.Sizing import initialize_from_mass

# ----------------------------------------------------------------------
# Main
Expand Down