Journal of Vibration and Acoustics: Recent submissions
Now showing items 1721-1740 of 3913
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Stability Analysis of a Three-Ball Automatic Balancer
(The American Society of Mechanical Engineers (ASME), 2008)Ball-type automatic balancers can effectively reduce the vibrations of optical disk drives due to the inherent imbalance of the disk. Although the ball-type automatic balancer used in practice ... -
Stochastic Averaging of Strongly Nonlinear Oscillators Under Combined Harmonic and Wide-Band Noise Excitations
(The American Society of Mechanical Engineers (ASME), 2008)Physical and engineering systems are often subjected to combined harmonic and random excitations. The random excitation is often modeled as Gaussian white noise for mathematical tractability. ... -
Investigation of Locking Force for Stay Cable Vibration Control Using Magnetorheological Fluid Damper
(The American Society of Mechanical Engineers (ASME), 2008)The locking force of stay cable vibration control using a magnetorheological (MR) fluid damper is investigated in this paper. For a single mode vibration of a stay cable equipped with a MR ... -
The Influence of a Cracked Blade on Rotor’s Free Vibration
(The American Society of Mechanical Engineers (ASME), 2008)The influence on the coupled vibrations among shaft, disk, and blades of a rotor system due to a cracked blade was investigated analytically. On the shaft-disk-blade system, without a cracked ... -
Steady-State Dynamic Response of a Bernoulli–Euler Beam on a Viscoelastic Foundation Subject to a Platoon of Moving Dynamic Loads
(The American Society of Mechanical Engineers (ASME), 2008)A Bernoulli–Euler beam resting on a viscoelastic foundation subject to a platoon of moving dynamic loads can be used as a physical model to describe railways and highways under traffic loading. ... -
Effect of Friction on the Performance of an Octostrut Vibration Isolation Platform
(The American Society of Mechanical Engineers (ASME), 2008)To improve the dynamic environment of a spacecraft, an octostrut vibration isolation platform is designed to replace the payload attach fitting, which can significantly attenuate the vibration ... -
Spatial Distribution Prediction of Steady-State Sound Field With the Ray-Tracing Method
(The American Society of Mechanical Engineers (ASME), 2008)A novel two-level space volume partition (SVP) algorithm based on the ray-tracing technique is proposed to predict the spatial distribution of the steady-state sound field. The sound space is ... -
A Novel Approach for Continuous Acoustic Emission Monitoring on Rotating Machinery Without the Use of Slip Ring
(The American Society of Mechanical Engineers (ASME), 2008)The acoustic emission (AE) technique is a powerful nondestructive tool for health monitoring of structures and mechanical components, especially due to its sensitivity to capture high frequency ... -
A Robust Semi-Analytical Method for Calculating the Response Sensitivity of a Time Delay System
(The American Society of Mechanical Engineers (ASME), 2008)It is often necessary to establish the sensitivity of an engineering system’s response to variations in the process/control parameters. Applications of the calculated sensitivity include gradient-based ... -
Mechanisms of Self-Sustained Oscillations Induced by a Flow Over a Cavity
(The American Society of Mechanical Engineers (ASME), 2008)This paper discusses the phenomena of flow-acoustic coupling between an unstable shear layer across a slot covering a cavity, thereby forming a Helmholtz resonator. The flow was caused by a ... -
Air Cavities in a Vibrated Bed of Visco-Elastic Glass Balls
(The American Society of Mechanical Engineers (ASME), 2008)Large scale, three dimensional computer simulations of a dense aggregative bed were performed to provide insight into the physics behind bubble formation in vertically vibrated granular materials ... -
Coupled Flexural-Torsional Nonlinear Vibrations of Piezoelectrically Actuated Microcantilevers With Application to Friction Force Microscopy
(The American Society of Mechanical Engineers (ASME), 2008)The problem of vibrations of microcantilevers has recently received considerable attention due to its application in several nanotechnological instruments, such as atomic force microscopy, nanomechanical ... -
Theoretical and Experimental Studies of Chatter in Turning for Uniform and Stepped Workpieces
(The American Society of Mechanical Engineers (ASME), 2008)This paper presents a method for predicting regenerative chatter onset conditions for uniform and stepped workpieces. The lateral deflections of flexible workpieces are modeled using the Timoshenko ... -
Wave Analysis of In-Plane Vibrations of H- and T-shaped Planar Frame Structures
(The American Society of Mechanical Engineers (ASME), 2008)This paper concerns in-plane vibration analysis of coupled bending and longitudinal vibrations in H- and T-shaped planar frame structures. An exact analytical solution is obtained using wave ... -
Modeling of Electrodynamic Bearings
(The American Society of Mechanical Engineers (ASME), 2008)A new model of electrodynamic bearings is presented in this paper. The model takes into account the R-L dynamics of the eddy currents on which this type of bearing is based, making it valid ... -
Modal Analysis of Rubbing Acoustic Emission for Rotor-Bearing System Based on Reassigned Wavelet Scalogram
(The American Society of Mechanical Engineers (ASME), 2008)Rubbing between the rotor and the stator is the frequent and harmful malfunction in the rotating machinery, which will cause a very serious accident, even catastrophe, to the machine. Thus, ... -
Eigenfrequencies of an Arbitrarily Supported Beam Carrying Multiple In-Span Elastic Rod-Mass Systems
(The American Society of Mechanical Engineers (ASME), 2008)Many vibrating mechanical and structural systems consist of a host structure to which a number of continuous attachments are mounted. In this paper, an efficient method is proposed for determining ... -
Mechanical Domain Parametric Amplification
(The American Society of Mechanical Engineers (ASME), 2008)Though utilized for more than 50years in a variety of power and communication systems, parametric amplification, the process of amplifying a harmonic signal with a parametric pump, has received ... -
Diagonal Recurrent Neural Networks for MDOF Structural Vibration Control
(The American Society of Mechanical Engineers (ASME), 2008)In recent years, considerable attention has been paid to the development of theories and applications associated with structural vibration control. Integrating the nonlinear mapping ability with ... -
Vibration Damping in Structures With Layered Viscoelastic Beam-Plate
(The American Society of Mechanical Engineers (ASME), 2008)Vibration and noise reduction in structures can significantly enhance dynamic stability. In fact, exploitation of such mechanisms can lead to an improvement of aerodynamic performance in flight ...