Results 11 to 20 of about 73,894 (273)
Detuning Optimization of Nonlinear Mistuned Bladed-Disks
Volume 8A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Engineering Design, Analysis, and Additive Manufacturing; Fatigue, Fracture, and Life Prediction, 2022 Abstract One major industrial challenge is to consider the detuning as a technological means to reduce the dynamical amplifications induced by mistuning. Due to technological evolutions, the nonlinear geometrical effects induced by the large displacements cannot longer be neglected.
Capiez-Lernout, Evangéline +1 more
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Contribution to the dynamic behaviour of bladed disks [PDF]
Applied and Computational Mechanics, 2007 At this time is dominant to design rotors as assembly of few separated bladed disks. Another type of design ordering is that blade buckle together with a part of shaft creates bladed disk.
Lošák P., Malenovský E.
doaj +3 more sources
On Antiresonance in the Forced Response of Mistuned Bladed Disks [PDF]
Shock and Vibration, 2003 Mistuning in bladed disks usually increases the forced response of the maximum responding blade leading to shortened component life in turbine engines.
Keith Jones, Charles Cross
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Blade dynamic stress analysis of rotating bladed disks [PDF]
Applied and Computational Mechanics, 2007 The paper deals with mathematical modelling of steady forced bladed disk vibrations and with dynamic stress calculation of the blades. The blades are considered as 1D kontinuum elastic coupled with three-dimensional elastic disk centrally clamped into ...
Kellner J., Zeman V.
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Dynamics of mistuned radial turbine wheels [PDF]
, 2006 This paper presents investigations carried out at Holset into the dynamics of mistuned radial turbine wheels, including a literature review, a lumped parameter model, identification of the most responsive blade, distribution of the peak maximum order ...
X Sheng +5 more
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Nihon Kikai Gakkai ronbunshu, 2021 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 +3 more
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Response of Bladed Disks With Mistuned Blade-Disk Interfaces [PDF]
Volume 6: Structures and Dynamics, Parts A and B, 2009 This paper focuses on the determination of the effects on the bladed disk forced response of small variations (mistuning) in the blade-disk interface properties as may result from blade seating. A blade-interface-disk mean model is first developed that relies on both the Craig-Bampton approach and a local modeling of the interface. Then, both model and
Avalos, J. +2 more
openaire +2 more sources
Dynamics of mistuned bladed disks: Modeling and experiment.
, 1996 The effect of random blade mistuning on the dynamics of bladed disks is investigated. A reduced-order model (ROM) formulation is presented for examining the forced response of tuned and mistuned bladed disks. The technique uses modal information obtained
Kruse, Marlin Jay
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Vibration characteristics of mistuned multistage bladed disks of the aero-engine compressor [PDF]
, 2022 In order to analyze the vibration characteristics of mistuned multistage bladed disks of an aero-engine compressor, a finite element reduction model of mistuned multistage bladed disks is established based on substructure modal synthesis method.
Zhang, Hongyuan +3 more
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Mode Localization of a Cracked Blade-Disks [PDF]
Volume 5: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education, 1998 In this paper, the effect of blade crack on the mode localization of a rotating blade-disk is studied. Pretwisted taper beams are used to simulate blades of a blade-disk. The crack on the blade can be regarded as a local disorder of this periodically coupled blades system.
J. H. Kuang, B. W. Huang
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