Journal of Vibration and Acoustics: Recent submissions
Now showing items 861-880 of 3913
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Random Vibration of Diamond Beaded Rope Subject to a Concentrated Load
(The American Society of Mechanical Engineers (ASME), 2016)In this work, the random vibration characteristics of a beaded rope under a concentrated load are investigated. A stochastic model describing the sawing force of a single diamondbeaded rope was established, based on the ... -
Multiple Scattering of Flexural Waves on Thin Plates
(The American Society of Mechanical Engineers (ASME), 2016)In this paper, the scattering of flexural waves on a thin Kirchhoff plate by an ensemble of throughthickness circular scatterers is formulated by using the concept of the Tmatrix in a generalized matrix notation, with a ... -
Resonant Gas Oscillations in a Linear Area Variation Cavity: Rectangular Versus Circular Cross Section
(The American Society of Mechanical Engineers (ASME), 2016)Resonant gas oscillations in a linear area variation closed cavity are investigated, for two duct cross sections: rectangular and circular. The resonance frequencies were similar for both the ducts. Increased drive amplitude ... -
Moving Inertial Loads Induced Dynamic Instability for Slender Beams Considering Parametric Resonances
(The American Society of Mechanical Engineers (ASME), 2016)This paper investigates the movinginertialloadsinduced dynamic instability limit for transverse bending vibration of slender beams considering both simple and combination parametric resonances under disturbances on multiple ... -
Three Dimensional Nonlinear Global Dynamics of Axially Moving Viscoelastic Beams
(The American Society of Mechanical Engineers (ASME), 2016)The threedimensional nonlinear global dynamics of an axially moving viscoelastic beam is investigated numerically, retaining longitudinal, transverse, and lateral displacements and inertia. The nonlinear continuous model ... -
Axial Suspension Compliance and Compression for Enhancing Performance of a Nonlinear Vibration Energy Harvesting Beam System
(The American Society of Mechanical Engineers (ASME), 2016)Developing energy harvesting platforms that are strongly sensitive to the low and diffused frequency spectra of common environmental vibration sources is a research objective receiving great recent attention. It has been ... -
Switch Triggers for Optimal Vibration Reduction Via Resonance Frequency Detuning
(The American Society of Mechanical Engineers (ASME), 2016)Resonance frequency detuning (RFD) reduces vibration of systems subjected to frequency sweep excitation by altering the structural stiffness state as the excitation frequency passes through resonance. This vibration reduction ... -
On the Equivalence of Acoustic Impedance and Squeeze Film Impedance in Micromechanical Resonators
(The American Society of Mechanical Engineers (ASME), 2016)In this work, we address the issue of modeling squeeze film damping in nontrivial geometries that are not amenable to analytical solutions. The design and analysis of microelectromechanical systems (MEMS) resonators, ... -
Adaptation of Energy Dissipation in a Mechanical Metastable Module Excited Near Resonance
(The American Society of Mechanical Engineers (ASME), 2016)Recent studies have demonstrated that the energetic vibrations of strategically designed negative stiffness inclusions may lead to large and adaptable damping in structural/material systems. Many researchers examine these ... -
Passive/Active Autoparametric Cantilever Beam Absorber With Piezoelectric Actuator for a Two Story Building Like Structure
(The American Society of Mechanical Engineers (ASME), 2015)This work deals with the design and experimental evaluation of a passive/active cantilever beam autoparametric vibration absorber mounted on a twostory buildinglike structure (primary system), with two rigid floors connected ... -
Multiple Mode Spatial Vibration Reduction in Flexible Beams Using H2 and H∠Modified Positive Position Feedback
(The American Society of Mechanical Engineers (ASME), 2015)This paper develops H2 modified positive position feedback (H2MPPF) and HâˆMPPF controllers for spatial vibration suppression of flexible structures in multimode condition. Resonant vibrations in a clamped–clamped (c–c) ... -
Precision Microscopic Actuations of Parabolic Cylindrical Shell Reflectors
(The American Society of Mechanical Engineers (ASME), 2015)An open parabolic cylindrical shell panel plays a key role in radial signal collection, reflection, and/or transmission applied to radar antennas, space reflectors, solar collectors, etc. Active vibration control can ... -
Self Powered Eddy Current Damper for Rotordynamic Applications
(The American Society of Mechanical Engineers (ASME), 2015)The vibration control of rotors is often performed using elastomeric or fluid dampers together with rolling element or hydrodynamic type bearings. Electromagnetic dampers seem a valid alternative to conventional solutions ... -
Drop Induced Shock Mitigation Using Adaptive Magnetorheological Energy Absorbers Incorporating a Time Lag
(The American Society of Mechanical Engineers (ASME), 2015)This study addresses the nondimensional analysis of dropinduced shock mitigated using magnetorheological energy absorbers (MREAs) incorporating a time lag. This time lag arises from two sources: (1) the time required to ... -
New Liquid Transfer Active Balancing System Using Compressed Air for Grinding Machine
(The American Society of Mechanical Engineers (ASME), 2015)Grinding wheel unbalance will result in vibrations of grinding machines and affect the quality and precision of workpieces. Therefore, a balancing system is necessary for grinding machines to lower the vibrations caused ... -
Band Gap of a Soft Magnetorheological Phononic Crystal
(The American Society of Mechanical Engineers (ASME), 2015)This paper presents the wave propagation in a tunable phononic crystal consisting of a porous hyperelastic magnetorheological elastomer (MRE) subjected to an external magnetic field. Finite deformations and magnetic induction ... -
Modeling, Control, and Validation of Electrohydrostatic Shock Absorbers
(The American Society of Mechanical Engineers (ASME), 2015)The implementation of variable damping systems to increase the adaptability of mechanical structures to their working environment has been gaining increasing scientific interest, and numerous attempts have been devoted to ... -
A Highly Adjustable Base Isolator Utilizing Magnetorheological Elastomer: Experimental Testing and Modeling
(The American Society of Mechanical Engineers (ASME), 2015)This paper presents a recent research advance on the development of a novel adaptive seismic isolation system to be used in seismic protection of civil structures. A highly adjustable laminated magnetorheological elastomer ... -
Wide Band Gaps in Flexural Periodic Beams With Separated Force and Moment Resonators
(The American Society of Mechanical Engineers (ASME), 2015)As a locally resonant (LR) elastic system, a uniform Euler–Bernoulli beam suspended with force and moment resonators has complicated bandgap mechanisms and richer dispersive characteristics. In this paper, we consider ... -
ANFIS Driven Strain Control of Thin Shape Memory Alloy Wires Using Seebeck Voltage of a Shape Memory Alloy–Constantan Thermocouple
(The American Society of Mechanical Engineers (ASME), 2015)Shape memory alloy (SMA) actuators exhibit considerable hysteresis between the supply voltage (conventionally used in resistive heating) and strain characteristics of the SMA. Hence, it is not easy to control the strain ...