Journal of Vibration and Acoustics: Recent submissions
Now showing items 1701-1720 of 3913
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Reflection and Transmission Coefficients of Plane Waves in Magnetoelectroelastic Layered Structures
(The American Society of Mechanical Engineers (ASME), 2008)Reflection and transmission coefficients of plane waves with oblique incidence to a multilayered system of piezomagnetic and/or piezoelectric materials are investigated in this paper. The general ... -
Three-Dimensional Finite Element Simulation of Nonlinear Dynamic Rotor Systems of a Turbocharger
(The American Society of Mechanical Engineers (ASME), 2008)This paper presents the modeling procedure for a high-velocity rotor system (RS) combined with sliding bearings. The equations for motion of the RS parts were derived based on the model of a ... -
Passive Balancing of Rotor Systems Using Pendulum Balancers
(The American Society of Mechanical Engineers (ASME), 2008)Passive balancing techniques have received a great deal of attention in recent literature, with much of this work focused on ball balancer systems. However, for certain applications, balancing ... -
Vibrations of an Asymmetrical Shaft With Gravity and Nonlinear Spring Characteristics (Isolated Resonances and Internal Resonances)
(The American Society of Mechanical Engineers (ASME), 2008)An asymmetrical shaft supported by single-row deep groove ball bearings with clearance has nonlinear spring characteristics, rotating stiffness difference in shaft, and static stiffness difference ... -
Identification of Cracks in Beams With Auxiliary Mass Spatial Probing by Stationary Wavelet Transform
(The American Society of Mechanical Engineers (ASME), 2008)This paper proposes a new approach based on auxiliary mass spatial probing by stationary wavelet transform (SWT) to provide a method for crack detection in beamlike structure. SWT can provide ... -
Dynamic Beam Modification Using Dimples
(The American Society of Mechanical Engineers (ASME), 2008)In this paper, a design method to modify the vibration characteristics of a beam by creating cylindrical dimples on its surface is investigated. In particular, the vibration response of a beam ... -
A Distributed Parameter Electromechanical Model for Cantilevered Piezoelectric Energy Harvesters
(The American Society of Mechanical Engineers (ASME), 2008)Cantilevered beams with piezoceramic layers have been frequently used as piezoelectric vibration energy harvesters in the past five years. The literature includes several single degree-of-freedom ... -
Identification of Plate Boundary Forces From Measured Displacements
(The American Society of Mechanical Engineers (ASME), 2008)This work deals with the identification of forces at plate boundaries, by measuring displacements only. Shear force and bending moment directly depend on different spatial derivatives of displacement ... -
Modeling Guided Waves for Damage Identification in Isotropic and Orthotropic Plates Using a Local Interaction Simulation Approach
(The American Society of Mechanical Engineers (ASME), 2008)In this paper, a numerical simulation technique based on the local interaction simulation approach (LISA)/sharp interface model (SIM) is used to study the propagation of Lamb waves in aluminum ... -
Performance of Mechanical Bandpass Filters Used in Energy Scavenging in the Presence of Fabrication Errors and Coupling
(The American Society of Mechanical Engineers (ASME), 2008)In this paper, several mathematical models that are more realistic representations of mechanical bandpass filters are studied. Such filters can be used in energy scavengers to convert energy ... -
Analysis of the van der Pol System With Coulomb Friction Using the Method of Multiple Scales
(The American Society of Mechanical Engineers (ASME), 2008)The effect of Coulomb friction on the nonlinear dynamics of a van der Pol oscillator is presented. A map from the magnitude of a peak to that of the succeeding valley in the time history ... -
Vibration Suppression Using Electromagnetic Resonant Shunt Damper
(The American Society of Mechanical Engineers (ASME), 2008)An electromagnetic actuator has the property to convert mechanical energy to electrical energy and vice versa. In this study, an electromagnetic resonant shunt damper, consisting of a voice coil ... -
Modeling and Computation for the High-Speed Rotating Flexible Structure
(The American Society of Mechanical Engineers (ASME), 2008)This paper is presented to improve the modeling accuracy and the computational stability for a high-speed rotating flexible structure. The differential governing equations are derived based on ... -
Parametric Instability of a Traveling Plate Partially Supported by a Laterally Moving Elastic Foundation
(The American Society of Mechanical Engineers (ASME), 2008)The parametric excitation of an axially moving plate is examined in an application where a partial foundation moves in the plane of the plate and in a direction orthogonal to the plate’s ... -
Vibration and Acoustic Response of an Isotropic Plate in a Thermal Environment
(The American Society of Mechanical Engineers (ASME), 2008)This paper presents numerical simulation studies on the vibration and acoustic response characteristics of an isotropic rectangular plate in a thermal environment using commercial finite element ... -
Command Shaping Under Nonsymmetrical Acceleration and Braking Dynamics
(The American Society of Mechanical Engineers (ASME), 2008)The conventional unity magnitude zero vibration (UM-ZV) command shaping technique is an effective means for eliminating vibration in linear mechanical systems with on-off actuators. This paper ... -
Vibration Control and Trajectory Tracking for General In-Plane Motion of an Euler–Bernoulli Beam Via Two-Time Scale and Boundary Control Methods
(The American Society of Mechanical Engineers (ASME), 2008)In this paper, general in-plane trajectory tracking problem of a flexible beam is studied. To obtain the dynamic equations of motion of the beam, Hamiltonian dynamics is used and then Lagrange’s ... -
Inversion-Based Feedforward Approach to Broadband Acoustic Noise Reduction
(The American Society of Mechanical Engineers (ASME), 2008)In this article, an inversion-based feedforward control approach to achieve broadband active-noise control is investigated. Broadband active-noise control is needed in many areas, from heating, ... -
Analytical Solutions for DVA Optimization Based on the Lyapunov Equation
(The American Society of Mechanical Engineers (ASME), 2008)A novel method is proposed to obtain the optimum configuration of dynamic vibration absorber (i.e., DVA) attached to an undamped or damped primary structure. The performance index, i.e., the ... -
Application of the Laplace-Wavelet Combined With ANN for Rolling Bearing Fault Diagnosis
(The American Society of Mechanical Engineers (ASME), 2008)A new technique for an automated detection and diagnosis of rolling bearing faults is presented. The time-domain vibration signals of rolling bearings with different fault conditions are preprocessed ...