Results 11 to 20 of about 1,536 (218)

DYNAMICS OF MISTUNED RADIAL TURBINE WHEELS [PDF]

open access: yes, 2006
This paper presents investigations carried out at Holset into the dynamics of mistuned\ud radial turbine wheels, including a literature review, a lumped parameter model,\ud identification of the most responsive blade, distribution of the peak maximum order\ud response and a method of mistiming identification.
Sheng, X., Clay, D.C., Allport, John
openaire   +3 more sources

Mistuning Identification and Model Updating of an Industrial Blisk [PDF]

open access: yesInternational Journal of Rotating Machinery, 2007
The results of a complete study of mistuning identification on an industrial blisk are presented. The identification method used here is based on a model-updating technique of a reduced order.
D. Laxalde   +4 more
doaj   +2 more sources

Study on identification of modal parameters of mistuned bladed disks (Identification by use of the frequency response curve and the reduced order model)

open access: yesNihon Kikai Gakkai ronbunshu, 2023
To develop turbomachinery blades with high reliability, it is indispensable to verify the natural frequency, damping, resonant stress, etc. under operating condition, and utilize these data in the mechanical design of a new blade.
Yasutomo KANEKO   +2 more
doaj   +1 more source

Suppression of Nonsynchronous Vibration Through Intentional Aerodynamic and Structural Mistuning [PDF]

open access: yes, 2021
International audienceNonsynchronous vibrations (NSVs) arising near the stall boundary of compressors are a recurring and potentially safety-critical problem in modern axial compressors and fans.
Sina Stapelfeldt   +3 more
core   +1 more source

Modal Analyses of an Axial Turbine Blisk With Intentional Mistuning [PDF]

open access: yes, 2017
The potential of intentional mistuning to reduce the maximum forced response is analyzed within the development of an axial turbine blisk for ship diesel engine turbocharger applications.
Arnold Kühhorn   +3 more
core   +3 more sources

A Modal Interpretation for Aeroelastic Stability Enhancement of Mistuned Bladed Disks

open access: yesAerospace, 2022
Understanding the mechanism of the aeroelastic stability improvement induced by mistuning is essential for the design of bladed disks in aero-engines. In this paper, a quantitative interpretation is given. It starts by projecting the mistuned aeroelastic
Xin Liu, Yu Fan, Lin Li, Xiaoping Yu
doaj   +1 more source

Aerodynamic Mistuning of Structurally Coupled Blades [PDF]

open access: yes, 2008
This paper discusses the impact of aerodynamic mistuning in the context of a structurally coupled blade system. The aerodynamic mistuning assumes a difference in blade loading (between adjacent blades) but no change in eigenfrequency or modeshape.
Heinrich Stu¨er   +5 more
core   +1 more source

Temporal deployment of attention in musicians: Evidence from an attentional blink paradigm

open access: yesAnnals of the New York Academy of Sciences, Volume 1530, Issue 1, Page 110-123, December 2023., 2023
Music training improves perceptual and cognitive skills, which may transfer to unrelated non‐musical domains. The cognitive processes and neural mechanisms enabling this transfer have yet to be discovered. Combining scalp recording of neuroelectric brain activity with an attentional blink paradigm, we provide evidence that music training improves the ...
Dawei Shen, Bernhard Ross, Claude Alain
wiley   +1 more source

Study on vibration response characteristics of mistuned bladed disk (Mistuning phenomena evaluated by vibratory stress)

open access: yesNihon Kikai Gakkai ronbunshu, 2016
Although bladed disks of turbomachinery 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, the deviation of the material ...
Yasutomo KANEKO   +3 more
doaj   +1 more source

Harmonic Mistuning of Blisks [PDF]

open access: yesPAMM, 2015
AbstractThe paper describes a new method to calculate the maximum amplificationof blade vibrations of a bladed disk or blisk subject to manufacturing tolerances. Two effects of mistuned blisks are analyzed in this paper. The separation of two orthogonal nodal diameters are shown and described in detail.
Linus Pohle   +2 more
openaire   +1 more source

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