"""
FAST - Copyright (c) 2016 ONERA ISAE
"""
# This file is part of FAST-OAD : A framework for rapid Overall Aircraft Design
# Copyright (C) 2021 ONERA & ISAE-SUPAERO
# FAST is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
import openmdao.api as om
from fastoad.models.constants import CABIN_SIZING_OPTION
from fastoad.module_management.constants import ModelDomain
from fastoad.module_management.service_registry import RegisterOpenMDAOSystem, RegisterSubmodel
from .constants import (
SERVICE_FUSELAGE_GEOMETRY_BASIC,
SERVICE_FUSELAGE_GEOMETRY_WITH_CABIN_SIZING,
SERVICE_HORIZONTAL_TAIL_GEOMETRY,
SERVICE_NACELLE_PYLON_GEOMETRY,
SERVICE_VERTICAL_TAIL_GEOMETRY,
SERVICE_WING_GEOMETRY,
SERVICE_AIRCRAFT_WETTED_AREA,
SERVICE_AIRCRAFT_AERODYNAMIC_CENTER,
)
[docs]@RegisterOpenMDAOSystem("fastoad.geometry.legacy", domain=ModelDomain.GEOMETRY)
class Geometry(om.Group):
"""
Computes geometric characteristics of the (tube-wing) aircraft:
- fuselage size can be computed from payload requirements
- wing dimensions are computed from global parameters (area, taper ratio...)
- tail planes are dimensioned from HQ requirements
"""
[docs] def initialize(self):
self.options.declare(
CABIN_SIZING_OPTION,
types=bool,
default=True,
desc="If True, fuselage dimensions will be computed from cabin specifications."
"\nIf False, fuselage dimensions will be input data.",
)
[docs] def setup(self):
if self.options[CABIN_SIZING_OPTION]:
self.add_subsystem(
"compute_fuselage",
RegisterSubmodel.get_submodel(SERVICE_FUSELAGE_GEOMETRY_WITH_CABIN_SIZING),
promotes=["*"],
)
else:
self.add_subsystem(
"compute_fuselage",
RegisterSubmodel.get_submodel(SERVICE_FUSELAGE_GEOMETRY_BASIC),
promotes=["*"],
)
self.add_subsystem(
"compute_wing", RegisterSubmodel.get_submodel(SERVICE_WING_GEOMETRY), promotes=["*"]
)
self.add_subsystem(
"compute_engine_nacelle",
RegisterSubmodel.get_submodel(SERVICE_NACELLE_PYLON_GEOMETRY),
promotes=["*"],
)
self.add_subsystem(
"compute_ht",
RegisterSubmodel.get_submodel(SERVICE_HORIZONTAL_TAIL_GEOMETRY),
promotes=["*"],
)
self.add_subsystem(
"compute_vt",
RegisterSubmodel.get_submodel(SERVICE_VERTICAL_TAIL_GEOMETRY),
promotes=["*"],
)
self.add_subsystem(
"compute_total_area",
RegisterSubmodel.get_submodel(SERVICE_AIRCRAFT_WETTED_AREA),
promotes=["*"],
)
self.add_subsystem(
"compute_aero_center",
RegisterSubmodel.get_submodel(SERVICE_AIRCRAFT_AERODYNAMIC_CENTER),
promotes=["*"],
)