Journal of Vibration and Acoustics: Recent submissions
Now showing items 1981-2000 of 3913
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Toward Intelligent Fault Detection in Turbine Blades: Variational Vibration Models of Damaged Pinned-Pinned Beams
(The American Society of Mechanical Engineers (ASME), 2005)Inaccuracies in the modeling assumptions about the distributional characteristics of the monitored signatures have been shown to cause frequent false positives in vehicle monitoring systems for ... -
A Technique for Estimating Linear Parameters Using Nonlinear Restoring Force Extraction in the Absence of an Input Measurement
(The American Society of Mechanical Engineers (ASME), 2005)Conventional nonlinear system identification procedures estimate the system parameters in two stages. First, the nominally linear system parameters are estimated by exciting the system at an ... -
Patch Transfer Functions as a Tool to Couple Linear Acoustic Problems
(The American Society of Mechanical Engineers (ASME), 2005)A method to couple acoustic linear problems is presented in this paper. It allows one to consider several acoustic subsystems, coupled through surfaces divided in elementary areas called patches. ... -
Piece-Wise Linear Dynamic Systems With One-Way Clutches
(The American Society of Mechanical Engineers (ASME), 2005)One-way clutches and clutch bearings are being used in a wide variety of dynamic systems. Motivated by their recent use as ratchets in piezoelectric actuators and decoupling devices in serpentine ... -
Prediction of Railway-Induced Ground Vibrations in Tunnels
(The American Society of Mechanical Engineers (ASME), 2005)The authors of this paper present the results of a study concerned with the assessment of the vibrational impact induced by the passage of commuter trains running in a tunnel placed underground ... -
An Adaptive Semiactive Control Algorithm for Magnetorheological Suspension Systems
(The American Society of Mechanical Engineers (ASME), 2005)In this paper, we will present a nonlinear-model-based adaptive semiactive control algorithm developed for magnetorheological (MR) suspension systems exposed to broadband nonstationary random vibration ... -
Higher-Order Pseudoaveraging via Harmonic Balance for Strongly Nonlinear Oscillations
(The American Society of Mechanical Engineers (ASME), 2005)Some strongly nonlinear conservative oscillators, on slight perturbation, can be studied via averaging of elliptic functions. These and many other oscillations allow harmonic balance-based averaging ... -
Effect of Drag-Reducing Air Lubrication on Underwater Noise Radiation From Ship Hulls
(The American Society of Mechanical Engineers (ASME), 2005)As the speed and power of surface ships rise, the reduction of ship acoustic signature and self-noise is becoming an important task of naval engineering. A significant decrease in underwater ... -
HMM-Based Fault Detection and Diagnosis Scheme for Rolling Element Bearings
(The American Society of Mechanical Engineers (ASME), 2005)In this paper, we introduce a new bearing fault detection and diagnosis scheme based on hidden Markov modeling (HMM) of vibration signals. Features extracted from amplitude demodulated vibration ... -
Friction-Compensating Command Shaping for Vibration Reduction
(The American Society of Mechanical Engineers (ASME), 2005)Fast and accurate point-to-point motion is a common operation for industrial machines, but vibration will frequently corrupt such motion. This paper develops commands that can move machines without ... -
Near Field Acoustic Holography for Cyclostationary Sound Field and its Partial Source Decomposition Procedure
(The American Society of Mechanical Engineers (ASME), 2005)The cyclostationary near field acoustic holography (NAH) technique is proposed to overcome the limitations of the current NAH in analyzing cyclostationary sound field. The proposed technique adopts ... -
Probability Distribution of Extremes of Von Mises Stress in Randomly Vibrating Structures
(The American Society of Mechanical Engineers (ASME), 2005)The problem of determining the probability distribution function of extremes of Von Mises stress, over a specified duration, in linear vibrating structures subjected to stationary, Gaussian random ... -
Structural-Acoustic Coupling Analysis of Two Cavities Connected by Boundary Structures and Small Holes
(The American Society of Mechanical Engineers (ASME), 2005)In some passenger vehicles, unexpected acoustic modes in the low-frequency range may be observed that cannot be explained by the conventional vibro-acoustic coupling analysis. It is because these ... -
On the Fatigue Analysis of Non-Gaussian Stress Processes With Asymmetric Distribution
(The American Society of Mechanical Engineers (ASME), 2005)This paper presents a multistage regression method to obtain an empirical joint probability density function (PDF) for rainflow amplitudes and means of non-Gaussian stress processes with asymmetric ... -
Coupled Bending-Torsional Vibration of a Cracked Hollow Beam Model in Water and Identification of Cracking
(The American Society of Mechanical Engineers (ASME), 2005)The coupled flexural-torsional vibration equations of a floating beam model, considering added fluid masses, are developed. The beam has varying bending stiffness, varying torsional stiffness and ... -
Effects of Discontinuity of Elasticity and Damping on the Dynamics of an Electromechanical Transducer
(The American Society of Mechanical Engineers (ASME), 2005)In this paper, we study numerically the effects of discontinuity in elasticity and damping on the dynamics of an electromechanical transducer. Frequency-response curves of oscillatory states are ... -
Tunable Microelectromechanical Filters that Exploit Parametric Resonance
(The American Society of Mechanical Engineers (ASME), 2005)Background: This paper describes an analytical study of a bandpass filter that is based on the dynamic response of electrostatically-driven MEMS oscillators. Method of Approach: Unlike most ... -
The Physical Reason and the Analytical Condition for the Onset of Dry Whip in Rotor-to-Stator Contact Systems
(The American Society of Mechanical Engineers (ASME), 2005)Dry whip is an instability of rotor-to-stator contact systems and may lead to a catastrophic failure of rotating machinery. The physical reason for the onset of dry whip in rotor/stator systems ... -
Experimental Studies on Active Vibration Control of a Beam Using Hybrid Active∕Passive Constrained Layer Damping Treatments
(The American Society of Mechanical Engineers (ASME), 2005)Hybrid damping designs with active piezoelectric materials and passive viscoelastic materials (VEMs) combine the advantages of both active and passive constrained layer damping treatments. In this ... -
Characterization of Modal Damping of Sandwich Plates
(The American Society of Mechanical Engineers (ASME), 2005)The homogenization of the energy functional of a sandwich plate, its minimization and its discretization by finite element methods and modeling the viscoelastic core behavior by an hysteretic ...