|
|
 |
 |
|
|
|
Selected Navigations:
Author >
[x]
|
Sort results by:
|
|
|
There are a total of 47 record(s) matching your query.
Sorted by: Date Added To NTRS in Descending order
|
Effect of helicopter noise on passenger annoyance
Author(s): Clevenson, S. A.; Leatherwood, J. D.
Abstract: The effects of helicopter interior noise on passenger annoyance for both reverie and listening situations was investigated. The relative effectiveness of several metrics for quantifying annoyance response for these ...
NASA Center: Langley Research Center
Publication Year: 1979
Added to NTRS: 2005-10-27
Accession Number: 79N26782; Document ID: 19790018611; Report Number: NASA-TM-80106
A user-oriented and computerized model for estimating vehicle ride quality
Author(s): Leatherwood, J. D.; Barker, L. M.
Abstract: A simplified empirical model and computer program for estimating passenger ride comfort within air and surface transportation systems are described. The model is based on subjective ratings from more than 3000 persons who ...
NASA Center: Langley Research Center
Publication Year: 1984
Added to NTRS: 2005-10-13
Accession Number: 84N22162; Document ID: 19840014094; Report Number: L-15745, NAS 1.60:2299, NASA-TP-2299
Ride-Quality Meter
Author(s): Leatherwood, J. D.; Dempsey, T. K.; Clevenson, S. A.; Stephens, D. G.
Abstract: Single- and combined-Axis discomfort are corrected by effects of noise and vibration to yield measure of total discomfort experienced by rider. Three modules transform mathematically-weighted rms accelerations, which ...
NASA Center: Langley Research Center
Publication Year: 1983
Added to NTRS: 2005-09-30
Accession Number: 82B10138; Document ID: 19820000138; Report Number: LAR-12882
Simplified Ride-Comfort Program
Author(s): Leatherwood, J. D.; Barker, L. M.
Abstract: Vibration and noise contributions to discomfort quantified. RIDEQUL estimates passenger ride comfort within air- and surface-transportion systems. Provides engineers with reliable method of objectively predicting and ...
NASA Center: Langley Research Center
Publication Year: 1986
Added to NTRS: 2005-09-30
Accession Number: 86B10061; Document ID: 19860000061; Report Number: LAR-13289
Improved active vibration isolator
Author(s): Dixon, G. V.; Leatherwood, J. D.; Stephens, D. G.
Abstract: Active vibration isolator simultaneously isolates a flexible structure or payload from disturbances, attenuates the response of a flexible structure to transient disturbances, and maintains the equilibrium position of the ...
NASA Center: NASA (non Center Specific)
Publication Year: 1968
Added to NTRS: 2005-09-30
Accession Number: 68B10123; Document ID: 19680000123; Report Number: LAR-10106
Subjective response to simulated sonic booms with ground reflections
Author(s): Sullivan, B. M.; Leatherwood, J. D.
Abstract: The Sonic Boom Simulator at NASA LaRC was used for the following: (1) quantify subjective loudness of simulated composite sonic booms, each of which was comprised of a simulated direct (non-reflected) boom combined with a ...
NASA Center: Langley Research Center
Publication Year: 1993
Added to NTRS: 2005-08-25
Accession Number: 93N28692; Document ID: 19930019503; Report Number: NAS 1.15:107764, NASA-TM-107764
The development of interior noise and vibration criteria
Author(s): Leatherwood, J. D.; Clevenson, S. A.; Stephens, D. G.
Abstract: A generalized model was developed for estimating passenger discomfort response to combined noise and vibration. This model accounts for broadband noise and vibration spectra and multiple axes of vibration as well as the ...
NASA Center: Langley Research Center
Publication Year: 1990
Added to NTRS: 2005-08-25
Accession Number: 91N10702; Document ID: 19910001389; Report Number: NAS 1.15:102736, NASA-TM-102736
Vibrations transmitted to human subjects through passenger seats and considerations of passenger comfort
Author(s): Leatherwood, J. D.
Abstract: An experimental study was conducted to determine the vertical and lateral vibration-transmission characteristics of several types of transport vehicle seats (two aircraft and one bus) to obtain preliminary estimates and ...
NASA Center: Langley Research Center
Publication Year: 1975
Added to NTRS: 2005-08-25
Accession Number: 75N25582; Document ID: 19750017510; Report Number: L-9872, NASA-TN-D-7929
An investigation of ride quality rating scales
Author(s): Dempsey, T. K.; Coates, G. D.; Leatherwood, J. D.
Abstract: An experimental investigation was conducted for the combined purposes of determining the relative merits of various category scales for the prediction of human discomfort response to vibration and for determining the ...
NASA Center: Langley Research Center
Publication Year: 1977
Added to NTRS: 2005-08-25
Accession Number: 78N11696; Document ID: 19780003753; Report Number: NASA-TP-1064
Heave response of a plenum air cushion including passive and active control concepts
Author(s): Dixon, G. V.; Leatherwood, J. D.; Stephens, D. G.
Abstract: Cushioncraft ground effect machine with heave response and control concepts
NASA Center: Langley Research Center
Publication Year: 1969
Added to NTRS: 2005-08-25
Accession Number: 69N23449; Document ID: 19690014075; Report Number: NASA-TN-D-5202
|
|
|
|
|
