Source code for RCAIDE.Framework.Mission.Segments.Climb.Constant_Throttle_Constant_Speed
# RCAIDE/Framework/Analyses/Mission/Segments/Climb/Constant_Throttle_Constant_Speed.py
#
#
# Created: Jul 2023, M. Clarke
# ----------------------------------------------------------------------------------------------------------------------
# IMPORT
# ----------------------------------------------------------------------------------------------------------------------
# RCAIDE imports
from RCAIDE.Framework.Core import Units
from RCAIDE.Framework.Mission.Segments.Evaluate import Evaluate
from RCAIDE.Framework.Mission.Segments.Cruise import Constant_Throttle_Constant_Altitude
from RCAIDE.Library.Mission import Common,Segments
from RCAIDE.Framework.Analyses import Process
# ----------------------------------------------------------------------------------------------------------------------
# Constant_Throttle_Constant_Speed
# ----------------------------------------------------------------------------------------------------------------------
[docs]
class Constant_Throttle_Constant_Speed(Evaluate):
""" Climb at a constant throttle setting and true airspeed. This segment may not always converge as the vehicle
could be deficient in thrust. Useful as a check to see the climb rate at the top of climb.
Assumptions:
You set a reasonable throttle setting that can provide enough thrust.
Source:
None
"""
def __defaults__(self):
""" This sets the default solver flow. Anything in here can be modified after initializing a segment.
Assumptions:
None
Source:
N/A
Inputs:
None
Outputs:
None
Properties Used:
None
"""
# --------------------------------------------------------------------------------------------------------------
# User Inputs
# --------------------------------------------------------------------------------------------------------------
self.altitude_start = None # Optional
self.altitude_end = 10. * Units.km
self.throttle = 0.5
self.air_speed = None
self.true_course = 0.0 * Units.degrees
# --------------------------------------------------------------------------------------------------------------
# Mission specific processes
# --------------------------------------------------------------------------------------------------------------
initialize = self.process.initialize
initialize.conditions = Segments.Climb.Constant_Throttle_Constant_Speed.initialize_conditions
iterate = self.process.iterate
# Update Conditions
iterate.conditions = Process()
iterate.conditions.velocities = Segments.Climb.Constant_Throttle_Constant_Speed.update_velocity_vector_from_wind_angle
iterate.conditions.angles = Segments.Climb.Constant_Throttle_Constant_Speed.unpack_body_angle
iterate.conditions.differentials_altitude = Segments.Climb.Constant_Throttle_Constant_Speed.update_differentials_altitude
iterate.conditions.differentials = Common.Update.differentials_time
iterate.conditions.orientations = Common.Update.orientations
iterate.conditions.acceleration = Common.Update.acceleration
iterate.conditions.atmosphere = Common.Update.atmosphere
iterate.conditions.gravity = Common.Update.gravity
iterate.conditions.freestream = Common.Update.freestream
iterate.conditions.energy = Common.Update.thrust
iterate.conditions.aerodynamics = Common.Update.aerodynamics
iterate.conditions.stability = Common.Update.stability
iterate.conditions.weights = Common.Update.weights
iterate.conditions.forces = Common.Update.forces
iterate.conditions.moments = Common.Update.moments
iterate.conditions.planet_position = Common.Update.planet_position
iterate.residuals.flight_dynamics = Common.Residuals.flight_dynamics
return
