Source code for RCAIDE.Library.Components.Landing_Gear.Nose_Landing_Gear
# RCAIDE/Components/Landing_Gear/Nose_Landing_Gear.py
#
# Created: Nov 2024, M. Clarke
# ----------------------------------------------------------------------------------------------------------------------
# IMPORT
# ----------------------------------------------------------------------------------------------------------------------
# RCAIDE imports
from .Landing_Gear import Landing_Gear
from RCAIDE.Library.Methods.Mass_Properties.Moment_of_Inertia import compute_cuboid_moment_of_inertia
# ----------------------------------------------------------------------------------------------------------------------
# Nose_Landing_Gear
# ----------------------------------------------------------------------------------------------------------------------
[docs]
class Nose_Landing_Gear(Landing_Gear):
"""
Nose landing gear component that provides directional control during ground operations
and supports a portion of the aircraft's forward weight.
Attributes
----------
tag : str
Unique identifier for the nose landing gear component, defaults to 'nose_gear'
tire_diameter : float
Diameter of the nose gear tires, defaults to 0
strut_length : float
Length of the nose gear strut assembly, defaults to 0
units : float
Number of nose landing gear units, typically 1, defaults to 0
wheels : float
Number of wheels per nose gear unit, defaults to 0
Notes
-----
The nose landing gear typically carries 10-20% of the aircraft weight and provides
steering capability during taxi, takeoff, and landing.
**Major Assumptions**
* Located on aircraft centerline
* Provides steering capability
* Designed for lower loads than main gear
**Definitions**
'Steering Angle'
Maximum deflection angle available for directional control
See Also
--------
RCAIDE.Library.Components.Landing_Gear.Landing_Gear
Base landing gear class
RCAIDE.Library.Components.Landing_Gear.Main_Landing_Gear
Main gear component that works in conjunction with nose gear
"""
def __defaults__(self):
"""
Sets default values for the nose landing gear attributes.
"""
self.tag = 'nose_gear'
[docs]
def compute_moments_of_inertia(self,vehicle,center_of_gravity=[[0, 0, 0]]):
"""
Computes the moment of inertia tensor for the landing gear.
Parameters
----------
center_of_gravity : list, optional
Reference point coordinates, defaults to [[0, 0, 0]]
Returns
-------
ndarray
3x3 moment of inertia tensor
"""
length = self.strut_length * 1.1
width = self.tire_diameter* 1.1
height = self.tire_diameter* 1.1
_, _ = compute_cuboid_moment_of_inertia(self,length,width,height, inner_length = 0, inner_width = 0, inner_height = 0, center_of_gravity = [[length / 2,width / 2, height / 2]] )
return
