Author: Max C. Kurbjun
Publisher:
ISBN:
Category : Noise
Languages : en
Pages : 686
Book Description
Theoretical calculations of the sound-pressure levels by the method of NACA TN 2968 predict accurately, for the 10-foot propeller investigated, the location of and the maximum levels to be expected for the overall noise and the first two propeller harmonics. The calculations do not predict accurately the location of the maximum sound-pressure levels ad the maximum calculated levels are 10 and 13 decibels lower than the msximm messured levels for the third and fourth harmonics, respectively.
Noise Survey of a 10-foot Four-blade Turbine-driven Propeller Under Static Condtions
Author: Max C. Kurbjun
Publisher:
ISBN:
Category : Noise
Languages : en
Pages : 686
Book Description
Theoretical calculations of the sound-pressure levels by the method of NACA TN 2968 predict accurately, for the 10-foot propeller investigated, the location of and the maximum levels to be expected for the overall noise and the first two propeller harmonics. The calculations do not predict accurately the location of the maximum sound-pressure levels ad the maximum calculated levels are 10 and 13 decibels lower than the msximm messured levels for the third and fourth harmonics, respectively.
Publisher:
ISBN:
Category : Noise
Languages : en
Pages : 686
Book Description
Theoretical calculations of the sound-pressure levels by the method of NACA TN 2968 predict accurately, for the 10-foot propeller investigated, the location of and the maximum levels to be expected for the overall noise and the first two propeller harmonics. The calculations do not predict accurately the location of the maximum sound-pressure levels ad the maximum calculated levels are 10 and 13 decibels lower than the msximm messured levels for the third and fourth harmonics, respectively.
Technical Note - National Advisory Committee for Aeronautics
Author: United States. National Advisory Committee for Aeronautics
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1026
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1026
Book Description
Technical Note
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 458
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 458
Book Description
Applied Mechanics Reviews
Author:
Publisher:
ISBN:
Category : Mechanics, Applied
Languages : en
Pages : 1006
Book Description
Publisher:
ISBN:
Category : Mechanics, Applied
Languages : en
Pages : 1006
Book Description
Thermal Fatigue of Ductile Materials
Author: Francis J. Clauss
Publisher:
ISBN:
Category : Alloys
Languages : en
Pages : 632
Book Description
An experimental study was made of the changes in the stress-rupture life, ductility, hardness, and microstructure of S-816 and Inconel 550 specimens that had been exposed to varying amounts and conditions of thermal fatigue.
Publisher:
ISBN:
Category : Alloys
Languages : en
Pages : 632
Book Description
An experimental study was made of the changes in the stress-rupture life, ductility, hardness, and microstructure of S-816 and Inconel 550 specimens that had been exposed to varying amounts and conditions of thermal fatigue.
Research Abstracts
Author: United States. National Advisory Committee for Aeronautics
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 442
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 442
Book Description
Research Abstracts and Reclassification Notice
Author: United States. National Advisory Committee for Aeronautics
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 508
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 508
Book Description
Noise Survey of a Full-scale Supersonic Turbine-driven Propeller Under Static Conditions
Author: Max C. Kurbjun
Publisher:
ISBN:
Category : Noise
Languages : en
Pages : 742
Book Description
Overall sound-pressure levels and frequency spectra of the noise emitted from a full-scale, 7.2-foot-diameter, 3, 500 rpm, three-blade, supersonic propeller mounted on a turbine-powered airplane have been obtained under static conditions at stations about the propeller at a 100-foot radius.
Publisher:
ISBN:
Category : Noise
Languages : en
Pages : 742
Book Description
Overall sound-pressure levels and frequency spectra of the noise emitted from a full-scale, 7.2-foot-diameter, 3, 500 rpm, three-blade, supersonic propeller mounted on a turbine-powered airplane have been obtained under static conditions at stations about the propeller at a 100-foot radius.
Index of NACA Technical Publications
Author: United States. National Advisory Committee for Aeronautics
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 580
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 580
Book Description
A Selected Listing of NASA Scientific and Technical Reports for ...
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 750
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 750
Book Description