Results 241 to 250 of about 221,137 (269)

Vibrations of Shafts, Blades and Disks

2017
This chapter examines the oscillation problems of shafts, turbine blades and the joint vibrations of blades and disks of a steam turbine’s rotor.
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Parametric Dynamics of Mistuned Bladed Disk

Volume 7B: Structures and Dynamics, 2014
The mistuning of bladed disk comes from manufacturing tolerances and in-service wear and tear. Consequently the cyclic symmetry has been destroyed by mistuning, even small mistuning levels could result in drastic changes in the dynamics of bladed disks.
Peiyi Wang, Lin Li
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Design Optimization of Bladed Disk Roots

SAE Technical Paper Series, 1987
<div class="htmlview paragraph">A procedure for obtaining the optimum disk serration and blade root geometry is presented. The procedure uses the -finite element method, a suitable objective function and a standard mathematical programming technique as its basis.
Sait Aksoy, Brian Fabien
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Free transverse vibration of rotating blades in a bladed disk assembly

Acta Mechanica, 2012
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Mode Localization in a Grouped Bladed Disk

Volume 4: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education, 2000
The effect of local blade crack on the mode localization in a rotating turbo disk with a group-blade assembly was studied. Periodically coupled Euler-Bernoulli beams were used to approximate the grouped and shrouded turbo blades. The cracked blade, regardedas a local disorder, was modeled using a two-span beam.
J. H. Kuang, B. W. Huang
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Detection of a Blade Crack in Bladed Disks: Methodology and Validation

2014
In turbomachinery, blade crack detection methods are beneficial for condition-based maintenance and for reducing the risk of catastrophic failures due to high cycle fatigue of bladed disks. A crack can be more easily detected in a perfectly tuned bladed disk (i.e., with identical blades and sectors). That is because the crack causes mode distortion and
ZUCCA, Stefano, Epureanu B. I.
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A New Method of Reducing the Vibration Localization of the Multi-packet Whole Mistuned Bladed Disk System Using Bladed Packets

International Journal of Aeronautical and Space Sciences, 2021
exaly  

Influences of blade crack on the coupling characteristics in a bladed disk with elastic support

Aerospace Science and Technology, 2023
Wen-Ming Zhang, Zhi-Yuan Wu
exaly  

Blade Vibrations Coupled with Disks

43rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2002
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Effect of coriolis force on forced response magnification of intentionally mistuned bladed disk

Journal of Sound and Vibration, 2017
Jize Zhong, Zili Xu
exaly