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RISParameter Reconstruction Based on Sensitivity Vector Fields
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A novel approach to determine very accurately multiple parameter variations by exploiting the geometric shape of dynamic attractors in state space is presented. The approach is based on the ...
Special Issue on Vibration-Based Structural Damage Detection and Health Monitoring
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The guest editors are pleased to compile this special issue of the Journal of Vibration and Acoustics on vibration-based damage detection and structural health monitoring. This experience has ...
Detection of Cracks in Mistuned Bladed Disks Using Reduced-Order Models and Vibration Data
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A novel methodology to detect the presence of a crack and to predict the nonlinear forced response of mistuned turbine engine rotors with a cracked blade and mistuning is developed. The ...
Damage Detection in Nonlinear Systems Using Optimal Feedback Auxiliary Signals and System Augmentations
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An optimal sensitivity enhancing feedback control has been proposed recently. This method differs from previous sensitivity enhancing approaches because in addition to placing the closed-loop ...
Experimental Enhanced Nonlinear Dynamics and Identification of Attractor Morphing Modes for Damage Detection
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper demonstrates two novel methods for identifying small parametric variations in an experimental system based on the analysis of sensitivity vector fields (SVFs) and probability density ...
Reduced Order Models for Blade-To-Blade Damping Variability in Mistuned Blisks
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A novel reduced order modeling methodology to capture blade-to-blade variability in damping in blisks is presented. This new approach generalizes the concept of component mode mistuning (CMM), ...
Reduced Order Models of Mistuned Cracked Bladed Disks
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Predicting the influence of cracks on the dynamics of bladed disks is a very important challenge. Cracks change the structural response, which in turn changes the crack propagation characteristics. ...
A Statistical Characterization of the Effects of Mistuning in Multistage Bladed Disks
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A great deal of research has been conducted on the effects of small random variations in structural properties, known as mistuning, in single stage bladed disks. Due to the inherent randomness ...
Structural Damping Identification for Mistuned Bladed Disks and Blisks
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: To accurately predict the dynamics of most structures, a representation of damping must be used. This paper focuses on structural damping and the identification of structural damping for complex ...
Mach Number Influence on Reduced-Order Models of Inviscid Potential Flows in Turbomachinery
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An unsteady inviscid flow through a cascade of oscillating airfoils is investigated. An inviscid nonlinear subsonic and transonic model is used to compute the steady flow solution. Then a small ...