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Unfaced Urethane Foam 0.0127 m (0.5 in) ThickDensity 60.7 kg/m3(3.8 lb/ft3)
标准号：
AIR1826
标准名称： Acoustical Considerations for Aircraft Environmental Control System Design
同源图形
Wavelength in Air Ve
Sound of Pressure an
Chart for Combining
Octave-Band Center F
Theoretical Transmis
FIGURE 7
Examples of Noise Co
Typical Noise Contro
Generalized Schemati
Comparison of Noise
FIGURE 12
FIGURE 13
FIGURE 14
FIGURE 15
Plenum Configuration
Crew Air Outlets
Grille Noise Level -
Variation of Grille
Gasper Operation Aff