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Evaluation Of Ride Quality Prediction Methods For Helicopter Interior Noise And Vibration Environments
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Book Synopsis Evaluation of Ride Quality Prediction Methods for Helicopter Interior Noise and Vibration Environments by : J. D. Leatherwood
Download or read book Evaluation of Ride Quality Prediction Methods for Helicopter Interior Noise and Vibration Environments written by J. D. Leatherwood and published by . This book was released on 1984 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper presents the results of a simulator study conducted to compare and validate various ride quality prediction methods for use in assessing passenger/crew ride comfort within helicopters. Included are results quantifying 35 helicopter pilots' discomfort responses to helicopter interior noise and vibration typical of routine flights, assessment of various ride quality metrics including the NASA ride comfort model, and examination of possible criteria approaches. Results of the study indicated that crew discomfort results from a complex interaction between vibration and interior noise. Overall measures such as weighted or unweighted root-mean-square acceleration level and A-weighted noise level were not good predictors of discomfort. Accurate prediction required a metric incorporating the interactive efefcts of both noise and vibration. The best metric for predicting crew comfort to the combined noise and vibration environment was the NASA discomfort index. (Author).
Book Synopsis Evaluation of Ride Quality Prediction Methods for Helicopter Interior Noise and Vibration Environments by : Jack D. Leatherwood
Download or read book Evaluation of Ride Quality Prediction Methods for Helicopter Interior Noise and Vibration Environments written by Jack D. Leatherwood and published by . This book was released on 1984 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Technical Paper written by and published by . This book was released on 1984 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Reference Publication written by and published by . This book was released on 1991 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Quantification of Helicopter Vibration Ride Quality Using Absorbed Power Measurements by : D. D. Hollenbaugh
Download or read book Quantification of Helicopter Vibration Ride Quality Using Absorbed Power Measurements written by D. D. Hollenbaugh and published by . This book was released on 1982 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: The absorbed power concept offers certain advantages over pure acceleration for helicopter ride quality evaluation. First, it takes into account multi-frequency, multi-axial vibration across a broad frequency range. Second, it provides proper weighting functions for all frequencies and axes according to body response. Third, it is applicable to random as well as periodic accelerations. A larger data base and further experimentation is required for full validation of absorbed power as a means for quantifying helicopter vibration ride quality. Further in-flight data will be collected to expand the vibration/noise environment data base, repeating measurements on the aircraft mentioned here, and add further aircraft. Already underway is a program to take measurements on US Navy air craft types. Data have been recorded on a Sikorsky RH-53D and a Kaman SH-2F. The subjective response experiments will be continued for correlation and validation of the absorbed power and NASA Ride Comfort Model.
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1987 with total page 1126 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Book Synopsis Passenger Ride Quality Within a Noise and Vibration Environment by : Thomas K. Dempsey
Download or read book Passenger Ride Quality Within a Noise and Vibration Environment written by Thomas K. Dempsey and published by . This book was released on 1976 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Aeroacoustics of Flight Vehicles: Noise control by : Harvey H. Hubbard
Download or read book Aeroacoustics of Flight Vehicles: Noise control written by Harvey H. Hubbard and published by . This book was released on 1991 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monthly Catalogue, United States Public Documents by :
Download or read book Monthly Catalogue, United States Public Documents written by and published by . This book was released on 1984 with total page 1252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Information Output of the Langley Research Center for Calendar Year 1984 by :
Download or read book Scientific and Technical Information Output of the Langley Research Center for Calendar Year 1984 written by and published by . This book was released on 1985 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis NASA Scientific and Technical Publications by :
Download or read book NASA Scientific and Technical Publications written by and published by . This book was released on 1987 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Aeroacoustics of Flight Vehicles by : Harvey H. Hubbard
Download or read book Aeroacoustics of Flight Vehicles written by Harvey H. Hubbard and published by . This book was released on 1991 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tech Notes written by and published by . This book was released on 1985 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Development of Interior Noise and Vibration Criteria by :
Download or read book The Development of Interior Noise and Vibration Criteria written by and published by . This book was released on 1990 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monthly Catalog of United States Government Publications by :
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on with total page 974 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Archives of Complex Environmental Studies by :
Download or read book Archives of Complex Environmental Studies written by and published by . This book was released on 1989 with total page 582 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Conference Publication written by and published by . This book was released on 1988 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt:
