Journal of Vibration and Acoustics: Recent submissions
Now showing items 1381-1400 of 3913
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Analytical Modeling and Experimental Verification of the Vibrations of the Zigzag Microstructure for Energy Harvesting
(The American Society of Mechanical Engineers (ASME), 2011)This paper addresses an issue in energy harvesting that has plagued the potential use of harvesting through the piezoelectric effect at the micro-electro-mechanical systems (MEMS) scale. Effective ... -
A Time Domain Inverse Method for Identification of Random Acoustic Sources at Launch Vehicle Lift-Off
(The American Society of Mechanical Engineers (ASME), 2011)In order to characterize the lift-off acoustic environment of launch vehicles, EADS has developed an inverse method via a time domain boundary integral equation approach using an optimal control ... -
Elastic Wave Suppression of Permanent Magnetic Motors by Pole/Slot Combination
(The American Society of Mechanical Engineers (ASME), 2011)This work investigates the influence of the pole/slot combination on the elastic wave deformation of permanent magnetic motors. To this aim, the local wave superposition and distributed wave ... -
Aeroelastic Analysis of Membrane Microair Vehicles—Part I: Flutter and Limit Cycle Analysis for Fixed-Wing Configurations
(The American Society of Mechanical Engineers (ASME), 2011)This is the first of two papers concerning the fluid and structural dynamic characteristics of membrane wing microair vehicles. In this paper, a (three) batten-reinforced fixed-wing membrane ... -
Special Issue on Energy Harvesting
(The American Society of Mechanical Engineers (ASME), 2011)With advances in low-power electronics, the cost and power requirements of many electronic devices have dropped significantly in recent years, thereby enabling their widespread deployment in, for ... -
Aeroelastic Analysis of Membrane Microair Vehicles—Part II: Computational Study of a Plunging Membrane Airfoil
(The American Society of Mechanical Engineers (ASME), 2011)In the second paper of the two part study of membrane microair vehicles, computations are performed for a plunging membrane airfoil. The computational model uses a sixth-order finite difference ... -
Identifying Cable Tension Loss and Deck Damage in a Cable-Stayed Bridge Using a Moving Vehicle
(The American Society of Mechanical Engineers (ASME), 2011)This paper presents a computational study on a new method of detecting multiple simultaneous damages in a cable-stayed bridge by use of the analysis of the vertical dynamic response of a ... -
Reduced Mass-Weighted Proper Decomposition for Modal Analysis
(The American Society of Mechanical Engineers (ASME), 2011)A method of modal analysis by a mass-weighted proper orthogonal decomposition for multi-degree-of-freedom and distributed-parameter systems of arbitrary mass distribution is outlined. The method ... -
Modal Analysis of a Loudspeaker and Its Associated Acoustic Pressure Field
(The American Society of Mechanical Engineers (ASME), 2011)This paper presents a modal analysis and the sound pressure field for the vibrator membrane of an actual portable loudspeaker. Unlike the conventional way to model the membrane’s edge under a ... -
Dynamics of Axially Accelerating Beams With an Intermediate Support
(The American Society of Mechanical Engineers (ASME), 2011)The transverse vibrations of an axially accelerating Euler–Bernoulli beam resting on simple supports are investigated. The supports are at the ends, and there is a support in between. The axial ... -
Optimal Design of an Intermediate Support for a Beam With Elastically Restrained Boundaries
(The American Society of Mechanical Engineers (ASME), 2011)A straight, slender beam with elastically restrained boundaries is investigated for optimal design of an intermediate elastic support with the minimum stiffness for the purpose of raising the ... -
Suppression of the Forward Rub in Rotating Machinery by an Asymmetrically Supported Guide
(The American Society of Mechanical Engineers (ASME), 2011)In rotating machinery, rubbing occurs between the rotor and the stator, at the seal, between the rotor and the guide and between the rotor and the backup bearing. The backward rub or the ... -
Dynamic Responses of Pile Groups Embedded in a Layered Poroelastic Half-Space to Harmonic Axial Loads
(The American Society of Mechanical Engineers (ASME), 2011)The dynamic responses of a pile group embedded in a layered poroelastic half-space subjected to axial harmonic loads is investigated in this study. Based on Biot’s theory, the frequency domain ... -
Iterative Methods for Eigenvalues of Viscoelastic Systems
(The American Society of Mechanical Engineers (ASME), 2011)This paper proposes a new iterative approach for the calculation of eigenvalues of single and multiple degree-of-freedom viscoelastic systems. The Biot model of viscoelasticity is assumed. With ... -
A Solution for the Stabilization of Electrodynamic Bearings: Modeling and Experimental Validation
(The American Society of Mechanical Engineers (ASME), 2011)Electrodynamic bearings are a kind of passive magnetic bearings based on eddy currents that develop between a rotating conductor and a static magnetic field. Relative to active magnetic bearings, ... -
Estimating Severity of Damage in Lattice Structures Utilizing Substructure Modal Data
(The American Society of Mechanical Engineers (ASME), 2011)This paper newly develops a method for the damage severity estimate for lattice structures based on the employment of the substructure potential energy (SPE). While all existing damage severity ... -
Velocity-Stress Equations for Waves in Solids of Hexagonal Symmetry Solved by the Space-Time CESE Method
(The American Society of Mechanical Engineers (ASME), 2011)This paper reports an extension of the space-time conservation element and solution element (CESE) method to simulate stress waves in elastic solids of hexagonal symmetry. The governing equations ... -
Modeling of Thermoacoustic Resonators With Nonuniform Medium and Boundary Conditions
(The American Society of Mechanical Engineers (ASME), 2011)The subject of this paper is modeling of low-amplitude acoustic fields in enclosures with nonuniform medium and boundary conditions. An efficient calculation method is developed for this class ... -
Robust Control of the Elastodynamic Vibrations of a Flexible Rotor System With Discontinuous Friction
(The American Society of Mechanical Engineers (ASME), 2011)The work presented here deals with the control of a flexible rotor system using the μ-synthesis control technique. This technique allows for the inclusion of modeling errors in the control ... -
A Reduction Procedure for One-Dimensional Joint Models and Application to a Lap Joint
(The American Society of Mechanical Engineers (ASME), 2011)A reduction procedure for joint models that was developed in earlier work is extended to allow for relative motion between surfaces, and the effect of this procedure on timestep issues is ...