Helicopter Noise
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Author | : F. H. Schmitz |
Publisher | : |
Total Pages | : 110 |
Release | : 1983 |
Genre | : |
ISBN | : |
Download Helicopter Impulsive Noise: Theoretical and Experimental Status Book in PDF, Epub and Kindle
The theoretical and experimental status of helicopter impulsive noise is reviewed. The two major source mechanisms of helicopter impulsive noise are addressed: high-speed impulsive noise and blade-vortex interaction impulsive noise. A thorough physical explanation of both generating mechanisms is presented together with model and full-scale measurements of the phenomena. Current theoretical prediction methods are compared with experimental findings of isolated rotor tests. The noise generating mechanisms of high speed impulsive noise are fairly well understood - theory and experiment compare nicely over Mach number ranges typical of today's helicopters. For the case of blade-vortex interaction noise, understanding of noise generating mechanisms and theoretical comparison with experiment are less satisfactory. Several methods for improving theory-experiment are suggested.
Author | : Ray Prouty |
Publisher | : Lulu.com |
Total Pages | : 594 |
Release | : 2009 |
Genre | : Science |
ISBN | : 0557089913 |
Download Helicopter Aerodynamics Volume I Book in PDF, Epub and Kindle
This is a collection of Ray Prouty's columns from Rotor and Wing magazine from 1979 to 1992.
Author | : Gordon J. Leishman |
Publisher | : Cambridge University Press |
Total Pages | : 860 |
Release | : 2006-04-24 |
Genre | : Science |
ISBN | : 9780521858601 |
Download Principles of Helicopter Aerodynamics with CD Extra Book in PDF, Epub and Kindle
Written by an internationally recognized teacher and researcher, this book provides a thorough, modern treatment of the aerodynamic principles of helicopters and other rotating-wing vertical lift aircraft such as tilt rotors and autogiros. The text begins with a unique technical history of helicopter flight, and then covers basic methods of rotor aerodynamic analysis, and related issues associated with the performance of the helicopter and its aerodynamic design. It goes on to cover more advanced topics in helicopter aerodynamics, including airfoil flows, unsteady aerodynamics, dynamic stall, and rotor wakes, and rotor-airframe aerodynamic interactions, with final chapters on autogiros and advanced methods of helicopter aerodynamic analysis. Extensively illustrated throughout, each chapter includes a set of homework problems. Advanced undergraduate and graduate students, practising engineers, and researchers will welcome this thoroughly revised and updated text on rotating-wing aerodynamics.
Author | : Wayne Johnson |
Publisher | : Courier Corporation |
Total Pages | : 1122 |
Release | : 2012-03-07 |
Genre | : Technology & Engineering |
ISBN | : 0486131823 |
Download Helicopter Theory Book in PDF, Epub and Kindle
Monumental engineering text covers vertical flight, forward flight, performance, mathematics of rotating systems, rotary wing dynamics and aerodynamics, aeroelasticity, stability and control, stall, noise, and more. 189 illustrations. 1980 edition.
Author | : John A. Molino |
Publisher | : |
Total Pages | : 96 |
Release | : 1982 |
Genre | : Airplanes |
ISBN | : |
Download Should Helicopter Noise be Measured Differently from Other Aircraft Noise? Book in PDF, Epub and Kindle
Author | : Robin T. Harrison |
Publisher | : |
Total Pages | : 16 |
Release | : 1994 |
Genre | : Forest management |
ISBN | : |
Download Alaska Helicopter Tours Sound Measurements Juneau, Alaska, June 1993 Book in PDF, Epub and Kindle
Author | : |
Publisher | : |
Total Pages | : 192 |
Release | : 1985 |
Genre | : |
ISBN | : |
Download A Community Survey of Helicopter Noise Annoyance Conducted Under Controlled Noise Exposure Conditions Book in PDF, Epub and Kindle
Author | : |
Publisher | : |
Total Pages | : 84 |
Release | : 1981 |
Genre | : |
ISBN | : |
Download Validation of Helicopter Noise Prediction Techniques Book in PDF, Epub and Kindle
Author | : Vincent Mestre |
Publisher | : |
Total Pages | : 135 |
Release | : 2017 |
Genre | : Airplanes |
ISBN | : 9780309446631 |
Download Assessing Community Annoyance of Helicopter Noise Book in PDF, Epub and Kindle
"This report explores what is currently known about community annoyance of helicopter noise. It describes a protocol for conducting a large-scale community survey to quantify annoyance due to civil helicopter noise and presents the results of a test of the protocol which also helped improve understanding of the roles of acoustic and non-acoustic factors that influence community annoyance to civil helicopter noise. The report should be of particular interest to airport industry practitioners, community planners, and researchers who desire a better understanding of the factors affecting community annoyance with helicopter noise and possible differences between helicopter noise impacts and fixed-wing aircraft noise impacts."--Publisher.
Author | : |
Publisher | : |
Total Pages | : 616 |
Release | : 2002 |
Genre | : |
ISBN | : |
Download Tongass National Forest (N.F.), Helicopter Landing Tours on the Juneau Icefield 2002-2006 Book in PDF, Epub and Kindle