Journal ArticleDOI
Dynamic coupling vibration of rotating shaft–disc–blade system — Modeling, mechanism analysis and numerical study
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TLDR
In this article, a comprehensive coupling dynamic model of RSDB system including the shaft bending, shaft torsion, blade bending, and blade radial deformation is formulated based on continuum beam theory and Lagrange equation.About:
This article is published in Mechanism and Machine Theory.The article was published on 2022-01-01. It has received 12 citations till now. The article focuses on the topics: Vibration & Torsional vibration.read more
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Influences of blade crack on the coupling characteristics in a bladed disk with elastic support
TL;DR: In this article , a flexible disk and a cracked-bladed disk were deduced based on the Kirchhoff plate and Timoshenko beam theories, and the crack-caused stiffness loss was calculated through the released strain energy.
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Dynamic modeling of rotary blade crack with regard to three-dimensional tip clearance
TL;DR: In this paper , a dynamic model of the 3D tip clearance with regard to rotary blade breathing crack is built, and the results show that the cracked blade's first-order natural frequency decreases with the crack depth, and it increases first and then decreases slightly when the crack location moves away from the blade root.
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Research on heat-elastic coupled vibration in a rotating rigid disk rotor system
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The connection between digital-twin model and physical space for rotating blade: an atomic norm-based BTT undersampled signal reconstruction method
References
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Book
Turbomachine blade vibration
TL;DR: In this paper, the authors present a detailed analysis of single and coupled blade-disc vibrations, as well as the effect of small aspect ratio on the number of vibrations.
Journal ArticleDOI
Dynamics, vibration and control of rotating composite beams and blades: A critical review
TL;DR: In this article, a comprehensive review of articles about rotating composite beams and blades is presented, which addresses analytical, semi-analytical and numerical studies dealing with dynamical problems involving adaptive/smart/intelligent materials (e.g., piezoelectric materials, electrorheological fluids, shape memory alloys, etc.), damping and vibration control, advanced composite materials, complicating effects and loadings, and experimental methods.
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Rotordynamic analysis of asymmetric turbofan rotor due to fan blade-loss event with contact-impact rub loads
TL;DR: In this article, the effect of the rotary inertia and gyroscopic moments as a result of both shaft bending as well as staggered blades flexing in-and-out of the plane of the disk was investigated.
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Dynamic modeling and vibration characteristics analysis of the aero-engine dual-rotor system with Fan blade out
TL;DR: Study of the dynamic responses of the complicated dual-rotor systems at instantaneous and windmilling statuses when FBO event occurs reveals that the sudden unbalance can induce impact load to the rotor, and lead to the sharp increase of the vibration amplitude and reaction force.
Book
History of Rotating Machinery Dynamics
TL;DR: In this article, the authors present a comparison of different theories of Torsion of Rods, including the Euler-Lagrange Equation, the Ritz Method, and the Lagrange Method for Vibration Problems.