Results 1 to 10 of about 471 (183)

Mistuning perception in music is asymmetric and relies on both beats and inharmonicity [PDF]

Communications Psychology
An out-of-tune singer or instrument can ruin the enjoyment of music. However, there is disagreement on how we perceive mistuning in natural music settings. To address this question, we presented listeners with in-tune and out-of-tune passages of two-part
Sara M. K. Madsen, Andrew J. Oxenham
doaj   +2 more sources

A reduced order model based on sector mistuning for the dynamic analysis of mistuned bladed disks

International Journal of Mechanical Sciences, 2011
In this paper, a pre-existing reduction technique suitable for the analysis of mistuned bladed disk dynamics, the Component Mode Mistuning technique (CMM), originally developed exclusively for the use of blade frequency mistuning pattern, is extended in order to allow for the introduction of a sector frequency mistuning pattern.
Christian M Firrone, Stefano Zucca
exaly   +4 more sources

Effect of fundamental frequency removal on mistuned harmonic separation thresholds [PDF]

Frontiers in Psychology
IntroductionInvestigating how the auditory system processes harmonics is essential for advancing our understanding of sound segregation mechanisms and for guiding the development of technologies that support speech and music perception in complex ...
Christel Azar, Christel Azar, Alexis Whittom, Alexis Whittom, Loonan Chauvette, Loonan Chauvette, Florence Couture, Claudelle Nadeau, Benoit-Antoine Bacon, François Champoux, François Champoux, Andréanne Sharp, Andréanne Sharp   +12 more
doaj   +2 more sources

A novel mathematical model for the design of the resonance mechanism of an intentional mistuning bladed disk system [PDF]

Mechanical Sciences, 2022
Bladed disk systems with advanced functions are widely used in turbo-machineries. However, there are always deviations in physical dynamic properties between blades and blades due to the tolerance and wear in operation.
X. Kan, X. Kan, T. Xing
doaj   +1 more source

Effect of mistuning parameters on dynamic characteristics of mistuned bladed disk [PDF]

Journal of Vibroengineering, 2021
The aim of this paper is to study the nonlinear dynamics of the tenon and mortise of aero-engine compressor blades, based on lumped parameter model of tenon and mortise of blade disk system, considering the influence of gap and friction, The nonlinear vibration characteristics of mistuned bladed disk with different mistuning parameters are studied. The
Hongyuan Zhang, Haocun Dong, Tianyu Zhao, Xin Zhang, Huiqun Yuan   +4 more
openaire   +1 more source

Key Action Mechanisms of Intentional Mistuning

Applied Sciences, 2021
Intentional mistuning is a common procedure to decrease the uncontrolled vibration amplification effects of the (unavoidable) random mistuning, and to reduce the sensitivity to it.
Jose Joaquin Sánchez-Álvarez, Carlos Martel   +1 more
doaj   +1 more source

Study on the vibration characteristics of bladed disks (Effect of damping variation on the resonant responses of bladed disks)

Nihon Kikai Gakkai ronbunshu, 2022
Although bladed disks are nominally designed to be cyclically symmetric (tuned system), the vibration characteristics of all blades on a disk are slightly different due to the manufacturing tolerance, deviations in the material properties, and wear ...
Yasutomo KANEKO, Riku YOSHIDA, Toshio WATANABE, Tatsuya FURUKAWA   +3 more
doaj   +1 more source

Identification and influence factors analysis of blade crack mistuning in hard-coated blisk based on modified component mode mistuning reduced-order model

Journal of Low Frequency Noise, Vibration and Active Control, 2021
Blade crack will cause severe mistuning of hard-coated blisks, which will lead to vibration localization. To identify crack mistuning and analyze influence factors, in this study, a mistuning identification method of blade cracks in hard-coated blisks is
Kunpeng Xu, Xianfei Yan, Dongxu Du, Wei Sun   +3 more
doaj   +1 more source

Robustness of learning that is based on covariance-driven synaptic plasticity. [PDF]

PLoS Computational Biology, 2008
It is widely believed that learning is due, at least in part, to long-lasting modifications of the strengths of synapses in the brain. Theoretical studies have shown that a family of synaptic plasticity rules, in which synaptic changes are driven by ...
Yonatan Loewenstein
doaj   +1 more source

Characterization of the Anomalous Vibration Response of an Intentionally Mistuned LPT Rotor

Machines, 2022
The wind tunnel facility at the Centro de Tecnologías Aeronáuticas was used to perform a set of experiments to study the effect of intentional mistuning on the forced response behavior of an aerodynamically unstable low-pressure turbine rotor.
Salvador Rodríguez-Blanco, Carlos Martel   +1 more
doaj   +1 more source