Source code for RCAIDE.Framework.Mission.Segments.Single_Point.Set_Speed_Set_Throttle
# RCAIDE/Framework/Analyses/Mission/Segments/Single_Point/Set_Speed_Set_Throttle.py
#
#
# Created: Jul 2023, M. Clarke
# ----------------------------------------------------------------------------------------------------------------------
# IMPORT
# ----------------------------------------------------------------------------------------------------------------------
# RCAIDE imports
from RCAIDE.Library.Methods.skip import skip
from RCAIDE.Framework.Core import Units
from RCAIDE.Framework.Mission.Segments.Evaluate import Evaluate
from RCAIDE.Library.Mission import Common,Segments
# package imports
import numpy as np
# ----------------------------------------------------------------------------------------------------------------------
# Set_Speed_Set_Throttle
# ----------------------------------------------------------------------------------------------------------------------
[docs]
class Set_Speed_Set_Throttle(Evaluate):
""" This is a segment that is solved using a single point. A snapshot in time.
We fix the speed and throttle. Acceleration is solved from those.
Assumptions:
None
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 = None
self.air_speed = 10. * Units['km/hr']
self.throttle = 1.
self.linear_acceleration_x = 0.
self.linear_acceleration_y = 0.
self.linear_acceleration_z = 0. # note that down is positive
self.roll_rate = 0
self.pitch_rate = 0
self.yaw_rate = 0
self.state.numerics.number_of_control_points = 1
# --------------------------------------------------------------------------------------------------------------
# Mission specific processes
# --------------------------------------------------------------------------------------------------------------
initialize = self.process.initialize
initialize.expand_state = skip
initialize.differentials = skip
initialize.conditions = Segments.Single_Point.Set_Speed_Set_Throttle.initialize_conditions
iterate = self.process.iterate
iterate.initials.energy = skip
iterate.unknowns.controls = Common.Unpack_Unknowns.control_surfaces
iterate.unknowns.orientation = Common.Unpack_Unknowns.orientation
iterate.unknowns.acceleration = Segments.Single_Point.Set_Speed_Set_Throttle.unpack_unknowns
iterate.conditions.differentials = skip
iterate.conditions.planet_position = skip
iterate.conditions.acceleration = skip
iterate.conditions.angular_acceleration = skip
iterate.conditions.weights = skip
iterate.residuals.flight_dynamics = Common.Residuals.flight_dynamics
post_process = self.process.post_process
post_process.inertial_position = skip
return
