Results 21 to 30 of about 414 (149)
Study on identification of modal parameters of turbomachinery blade and impeller
Nihon Kikai Gakkai ronbunshu, 2020 To develop turbomachinery blades with high reliability, it is indispensable to verify the natural frequency, the damping, the resonant stress, etc. under operating condition, and utilize these data in the mechanical design of a new blade.
Yasutomo KANEKO +2 more
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Nonproportional Intentionally Mistuned Turbine Blisk Design with Improved Component Modal Synthesis
Shock and Vibration, 2021 An improved component modal synthesis-based nonproportional mistuning method (ICMS-NPMM) is proposed to investigate mistuned turbine blisks (MTBs) since the high-fidelity finite element models (HFEMs) involve large number of computations, which leads to ...
Bin Bai +4 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 the blades on a disk are slightly different due to the manufacturing tolerance, deviations in the material properties, and wear ...
Yasutomo KANEKO +2 more
doaj +1 more source
International Journal of Turbomachinery, Propulsion and Power, 2023 For engines operating using heavy fuel oil (HFO), the nozzle rings of turbocharger turbines are prone to severe degradation because of contamination with unburned fuel deposits. This contamination may lead to increased excitation of blade resonance.
Takashi Ando
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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\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
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Study on Influence of Multi-Parameter Variation of Bladed Disk System on Vibration Characteristics
Applied Sciences, 2021 As the main components of the rotor system of aero-engines and other rotating machinery equipment, the bladed disk system has high requirements on its structure design, safety and stability.
Honggang Pan, Yunshi Wu, Tianyu Zhao
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Mode localization in linear and periodically time‐varying mistuned wind rotor
Wind Energy, 2021 Rotor blades are the most important and most expensive part of a wind turbine; their dynamic behavior is of great significance for maintenance planning and safe operation.
Xin Guo +3 more
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Study on vibration characteristics and stability of steam turbine vanes with large capacity
Nihon Kikai Gakkai ronbunshu, 2016 A vane used in a low pressure end of steam turbine is usually fixed to an inner shroud and an outer ring by welding both ends. In such a vane structure, the damping in loading operation is comprised of the material damping and the aerodynamic damping ...
Yasutomo KANEKO +3 more
doaj +1 more source
Intentional mistuning optimization of nonlinear mistuned bladed-disks
, 2022 One major industrial challenge is to consider the detuning as a technological means to reduce the dynamical amplifications induced by mistuning. A full analysis of the detuning optimization of mistuned bladed-disks with finite displacements is carried out on a 12 bladed-disk finite element model.
Capiez-Lernout, Evangéline +1 more
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On Antiresonance in the Forced Response of Mistuned Bladed Disks
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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