# RCAIDE/Framework/Analyses/Noise/Noise.py
#
#
# Created: Jul 2023, M. Clarke
# ----------------------------------------------------------------------------------------------------------------------
# IMPORT
# ----------------------------------------------------------------------------------------------------------------------
from RCAIDE.Framework.Core import Data
from RCAIDE.Framework.Analyses import Analysis
# package imports
import numpy as np
# ----------------------------------------------------------------------
# Noise
# ----------------------------------------------------------------------
[docs]
class Noise(Analysis):
""" RCAIDE.Framework.Analyses.Noise.Noise()
The Top Level Noise Analysis Class
Assumptions:
None
Source:
N/A
"""
def __defaults__(self):
"""This sets the default values and methods for the analysis.
Assumptions:
None
Source:
N/A
Inputs:
None
Outputs:
None
Properties Used:
N/A
"""
self.tag = 'Noise'
self.vehicle = Data()
self.settings = Data()
self.settings = self.settings
self.settings.harmonics = np.arange(1,30)
self.settings.flyover = False
self.settings.approach = False
self.settings.sideline = False
self.settings.sideline_x_position = 0
self.settings.print_noise_output = False
self.settings.mean_sea_level_altitude = True
self.settings.aircraft_origin_location = np.array([0,0,0])
self.settings.aircraft_destination_location = np.array([0,0,0])
self.settings.aircraft_origin_coordinates = np.array([0.0,0.0])
self.settings.aircraft_destination_coordinates = np.array([0.0,0.0])
self.settings.noise_reduction_factors = Data()
self.settings.noise_reduction_factors.SPL_dbA = 0.0 # Reduction factors are proportional (.1 is a 10% weight reduction)
self.settings.topography_file = None
self.settings.microphone_locations = None
self.settings.microphone_coordinates = None
self.settings.microphone_x_resolution = 11
self.settings.microphone_y_resolution = 11
self.settings.noise_times_steps = 101
self.settings.number_of_microphone_in_stencil = 10
self.settings.microphone_min_x = 0
self.settings.microphone_max_x = 1000
self.settings.microphone_min_y = -100
self.settings.microphone_max_y = 100
self.settings.noise_hemisphere = False
self.settings.noise_hemisphere_radius = 20
epsilon = 1E-5
self.settings.noise_hemisphere_phi_angles = np.linspace(epsilon + (np.pi/2), np.pi-epsilon,6)
self.settings.noise_hemisphere_theta_angles = np.linspace(epsilon + 0 , 2*np.pi-epsilon,12)
# settings for acoustic frequency resolution
self.settings.center_frequencies = np.array([16,20,25,31.5,40, 50, 63, 80, 100, 125, 160, 200, 250, 315, 400, \
500, 630, 800, 1000, 1250, 1600, 2000, 2500, 3150,
4000, 5000, 6300, 8000, 10000])
self.settings.lower_frequencies = np.array([14,18,22.4,28,35.5,45,56,71,90,112,140,180,224,280,355,450,560,710,\
900,1120,1400,1800,2240,2800,3550,4500,5600,7100,9000 ])
self.settings.upper_frequencies = np.array([18,22.4,28,35.5,45,56,71,90,112,140,180,224,280,355,450,560,710,900,1120,\
1400,1800,2240,2800,3550,4500,5600,7100,9000,11200 ])
return
[docs]
def evaluate(self,state):
"""The default evaluate function.
Assumptions:
None
Source:
N/A
Inputs:
None
Outputs:
results <Results class> (empty)
Properties Used:
N/A
"""
results = Data()
return results
