Results 141 to 150 of about 471 (183)
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Dichotic beats of mistuned consonances
The Journal of the Acoustical Society of America, 1997The beats of mistuned consonances (BMCs) result from the presentation of two sinusoids at frequencies slightly mistuned from a ratio of small integers. Several studies have suggested that the source of dichotic BMCs is an interaction within a binaural critical band.
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Logopedics Phoniatrics Vocology, 2010
This research describes the strategy of singers in reacting to the pitch deviation from equally tempered (ET) value in their ensemble partner's part in singing two-part a cappella music, and the ability of professional musicians to identify such deviations. Professional singers preferred to maintain the purity of melodic intervals in their own part and
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This research describes the strategy of singers in reacting to the pitch deviation from equally tempered (ET) value in their ensemble partner's part in singing two-part a cappella music, and the ability of professional musicians to identify such deviations. Professional singers preferred to maintain the purity of melodic intervals in their own part and
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Computation of Mistuning Effects on Cascade Flutter
AIAA Journal, 2000A computational method is described for predicting eutter of turbomachinery cascades with mistuned blades. Themethodsolves theunsteadyEuler/Navier‐Stokesequationsformultiple-bladepassageson aparallel computer usingthemessagepassinginterface. Asecond-orderimplicit schemewithdualtime-steppingand multigrid isused.
Mani Sadeghi, Feng Liu
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A Fleet Risk Prediction Methodology for Mistuned IBRs using Geometric Mistuning Models
17th AIAA Non-Deterministic Approaches Conference, 2015An improved spatial statistical approach and probabilistic prediction method for mistuned integrally bladed rotors is proposed and validated with a large population of rotors. Prior work utilized blade-alone principal component analysis to model spatial variation arising from geometric deviations contributing to forced response mistuning amplification.
Emily B. Henry +2 more
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Detection of a mistuned component in a harmonic complex
The Journal of the Acoustical Society of America, 1994The ability to detect a mistuned component in a harmonic complex was measured as a function of harmonic number using three different stimulus procedures. The harmonic complex and target component were presented either simultaneously to the same ear (simultaneous monotic), successively to the same ear (successive monotic), or simultaneously to different
J, Lee, D M, Green
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Mistuning Identification of Bladed Disks Using a Fundamental Mistuning Model: Part 1 — Theory
Volume 4: Turbo Expo 2003, 2003This paper is the first in a two-part study of identifying mistuning in bladed disks. It develops a new method of mistuning identification based on measurements of the vibratory response of the system as a whole. As a system-based method, this approach is particularly suited to integrally bladed rotors, whose blades cannot be removed for individual ...
D. M. Feiner, J. H. Griffin
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Hearing Research, 2006
Mistuning a harmonic produces an exaggerated change in its pitch. This occurs because the component becomes inconsistent with the regular pattern that causes the other harmonics (constituting the spectral frame) to integrate perceptually. These pitch shifts were measured when the fundamental (F0) component of a complex tone (nominal F0 frequency = 200 ...
Brian, Roberts, Stephen D, Holmes
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Mistuning a harmonic produces an exaggerated change in its pitch. This occurs because the component becomes inconsistent with the regular pattern that causes the other harmonics (constituting the spectral frame) to integrate perceptually. These pitch shifts were measured when the fundamental (F0) component of a complex tone (nominal F0 frequency = 200 ...
Brian, Roberts, Stephen D, Holmes
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EFFICIENT ALGORITHMS FOR MISTUNING ANALYSIS
IFAC Proceedings Volumes, 2002Abstract This paper describes two algorithms to calculate bounds on the largest frequency response function that is attained when a large number of parameters is perturbed simultaneously within a box. The algorithms have been created to calculate worst-case responses of mistuned (perturbed) bladed disks, which is an important step in the analysis and
Mario A. Rotea, Fernando J. D'Amato
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Volume 7A: Structures and Dynamics, 2013
This paper investigates the potential benefits resulting from using two different types of friction dampers on a bladed disk. In this scenario, every blade or platform is equipped with a damper of either type A or type B with these two types differing by their friction forces.
Raghavendra Murthy, Marc P. Mignolet
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This paper investigates the potential benefits resulting from using two different types of friction dampers on a bladed disk. In this scenario, every blade or platform is equipped with a damper of either type A or type B with these two types differing by their friction forces.
Raghavendra Murthy, Marc P. Mignolet
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Binaural beats of mistuned consonances
The Journal of the Acoustical Society of America, 1994In a previous paper [M. P. Feeney and E. M. Burns, J. Acoust. Soc. Am. 93, 2346(A) (1993)] data on the detection of dichotic beats of mistuned consonances (BMCs) were presented. The results showed that subjects could detect mistuning from small-integer frequency ratios for simultaneous-dichotic pure-tones in a 2I-2AFC task.
M. Patrick Feeney, Edward M. Burns
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