Author: Conrad M. WillisPublisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 32
Book Description
Noise-reduction Measurements on Stiffened and Unstiffened Cylindrical Models of an Airplane Fuselage
Author: Conrad M. WillisPublisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 32
Book Description
Noise-Reduction Measurements of Stiffened and Unstiffened Cylindrical Models of an Airplane Fuselage
Author: National Aeronautics and Space Administration (NASA)Publisher: Createspace Independent Publishing Platform
ISBN: 9781725615489
Category :
Languages : en
Pages : 32
Book Description
Noise-reduction measurements are presented for a stiffened and an unstiffened model of an airplane fuselage. The cylindrical models were tested in a reverberant-field noise environment over a frequency range from 20 Hz to 6 kHz. An unstiffened metal fuselage provided more noise reduction than a fuselage having the same sidewall weight divided between skin and stiffening stringers and ring frames. The addition of acoustic insulation to the models tended to smooth out the interior-noise spectrum by reducing or masking the noise associated with the structural response at some of the resonant frequencies. Willis, C. M. and Mayes, W. H. Langley Research Center NASA-TM-85716, L-15699, NAS 1.15:85716 RTOP 505-33-53-03...
NASA Technical Memorandum
Author: Scientific and Technical Information Output of the Langley Research Center for Calendar Year 1984
Author: Scientific and Technical Aerospace Reports
Author: Noise-reduction Measurements on Stiffened and Unstiffened Cylindrical Models of an Airplane Fuselage
Author: Conrad M. WillisPublisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 32
Book Description
Advanced Turboprop Project
Author: Roy D. HagerPublisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 140
Book Description
The Shock and Vibration Digest
Author: Aeroacoustics of Flight Vehicles
Author: Harvey H. HubbardPublisher:
ISBN:
Category : Aerodynamic noise
Languages : en
Pages : 456
Book Description
Author: