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Comments on Rayleigh’s Quotient and Perturbation Theory for the Eigenvalue Problem
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The connection between Rayleigh’s quotient and perturbation theory for the eigenvalue problem is studied. Equivalence of these techniques is proven under certain conditions.
Vibration Localization by Disorder in Assemblies of Monocoupled, Multimode Component Systems
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Disorder in nominally periodic engineering structures results in the localization of the mode shapes to small geometric regions and in the attenuation of waves, even in the passbands of the ...
The Dynamic Response of Tuned Impact Absorbers for Rotating Flexible Structures
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper describes an analytical investigation of the dynamic response and performance of impact vibration absorbers fitted to flexible structures that are attached to a rotating hub. This ...
Frequency Analysis of a Linear Elastic Structure Carrying a Chain of Oscillators
Publisher: American Society of Civil Engineers
Abstract: In this technical note we analyze the free vibration of
Structural modal interaction of a four degree-of-freedom bladed disk and casing model
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Consideration is given to a very specific interaction phenomenon that may occur in turbomachines due to radial rub between a bladed disk and surrounding casing. These two structures, featuring ...
Effects of a Cracked Blade on Mistuned Turbine Engine Rotor Vibration
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An efficient methodology for predicting the nonlinear forced vibration response of a turbine engine rotor with a cracked blade is presented and used to investigate the effects of the damage ...
Modal Reduction of a Nonlinear Rotating Beam Through Nonlinear Normal Modes*
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A method for determining reduced-order models for rotating beams is presented. The approach is based on the construction of nonlinear normal modes that are defined in terms of invariant manifolds ...
Vibration Localization in Rotating Shafts, Part 1: Theory
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents a theoretical study of vibration localization in single-span, flexible, rotating shafts. A noncircular cross-section of the rotating shaft, leading to dissimilar lateral moments ...
Vibration Localization in Rotating Shafts, Part 2: Experiment
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents an experimental study of vibration localization in single-span, flexible, rotating shafts. It was shown in a companion paper (Part I) that a noncircular cross-section of the ...
Predicting Blade Stress Levels Directly From Reduced-Order Vibration Models of Mistuned Bladed Disks
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The forced vibration response of bladed disks can increase dramatically due to blade mistuning, which can cause major durability and reliability problems in turbine engines. To predict the ...