Journal of Vibration and Acoustics: Recent submissions
Now showing items 961-980 of 3913
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Identification and Suppression of Unbalanced Magnetic Force and Cogging Torque in Permanent Magnet Motors With Magnetic Field Distortion
(The American Society of Mechanical Engineers (ASME), 2015)Permanent magnet (PM) induced vibration is one of the major concerns for PM motors. This work aims at the identification and suppression of the vibration source from magnetic field distortions caused by magnet/slot ... -
An Exact Analytical Approach for Free Vibration Analysis of Built Up Space Frames
(The American Society of Mechanical Engineers (ASME), 2015)Coupled inand outofplane bending, axial, and torsional vibrations exist in a builtup space frame, which greatly challenges the conventional modal approach. A wavebased exact analytical method is applied to study vibrations ... -
Free Vibration of Curvilinearly Stiffened Shallow Shells
(The American Society of Mechanical Engineers (ASME), 2015)The free vibration of curvilinearly stiffened shallow shells is investigated by the Ritz method. Based on the firstorder shear deformation shell theory and threedimensional (3D) curved beam theory, the strain and kinetic ... -
Ghost Image Suppression Based on Particle Swarm Optimization MVDR in Sound Field Reconstruction
(The American Society of Mechanical Engineers (ASME), 2015)In sound field reconstruction, spurious sources called ghost images always appear around the position of the real sound source in the sound pressure distribution map because of the grating and side lobes, thus resulting ... -
Piezoelectric Vibration Energy Harvesting From a Two Dimensional Coupled Acoustic Structure System With a Dynamic Magnifier
(The American Society of Mechanical Engineers (ASME), 2015)A class of piezoelectric energy harvester is presented to harness the vibration energy from coupled acousticstructure systems such as those existing, for example, in aircraft acoustic cabin/flexible fuselage systems. Generic ... -
A Legendre Polynomials Based Method for Stability Analysis of Milling Processes
(The American Society of Mechanical Engineers (ASME), 2015)This paper presents a timedomain approach for a semianalytical prediction of stability in milling using the Legendre polynomials. The governing equation of motion of milling processes is expressed as a delaydifferential ... -
Lyapunov Based Boundary Control of Strain Gradient Microscale Beams With Exponential Decay Rate
(The American Society of Mechanical Engineers (ASME), 2015)In nonclassical microbeams, the governing partial differential equation (PDE) of the system and corresponding boundary conditions are obtained based on the nonclassical continuum mechanics. In this study, exponential decay ... -
Extensional Waves in a Sandwich Plate With Interface Slip
(The American Society of Mechanical Engineers (ASME), 2015)The twodimensional (2D) equations for thin elastic plates are used to study extensional motions of a sandwich plate with weak interfaces. The interfaces are governed by the shearslip model that possesses interface elasticity ... -
Differential Quadrature Method for Stability Analysis of Dynamic Systems With Multiple Delays: Application to Simultaneous Machining Operations
(The American Society of Mechanical Engineers (ASME), 2015)This paper proposes a semianalytical solution via the differential quadrature method (DQM) for stability analysis of linear multidegreeoffreedom secondorder systems with multiple delays. The vibration systems are reformulated ... -
Vibration Suppression of Subharmonic Resonance Response Using a Nonlinear Vibration Absorber
(The American Society of Mechanical Engineers (ASME), 2015)This paper is concerned with the vibration of a two degreeoffreedom (2DOF) nonlinear system subjected to multiparametric excitation forces. The vibrating motion of the system is described by the coupled differential equations ... -
Maxwell–Voigt and Maxwell Ladder Models for Multi Degree of Freedom Elastomeric Isolation Systems
(The American Society of Mechanical Engineers (ASME), 2015)This paper presents a model for an elastomeric isolation system consisting of a three degreeoffreedom (DOF) rigid body assembled to a frame through multiple isolators. Each elastomeric isolator is either represented by a ... -
Dynamic Modeling of Cable Driven Parallel Manipulators With Distributed Mass Flexible Cables
(The American Society of Mechanical Engineers (ASME), 2015)A cabledriven parallel manipulator is an economic way to achieve manipulation over large workspace. However, unavoidable vibration in long cables can dramatically degenerate the positioning performance of manipulators. In ... -
Vibrations of Completely Free Rounded Rectangular Plates
(The American Society of Mechanical Engineers (ASME), 2015)The natural vibration of rectangular plates with rounded corners is studied by using a family of homotopy shapes and an efficient Ritz method. -
Analysis of Dispersion Characteristics of an Infinite Cylindrical Shell Submerged in Viscous Fluids Considering Hydrostatic Pressure
(The American Society of Mechanical Engineers (ASME), 2015)In previous investigations of the vibroacoustic characteristics of a submerged cylindrical shell in a flow field, the fluid viscosity was usually ignored. In this paper, the effect of fluid viscosity on the vibrational ... -
Dynamics of Globally and Dissipatively Coupled Resonators
(The American Society of Mechanical Engineers (ASME), 2015)This work explores the dynamics of arrays of globally and dissipatively coupled resonators. These resonator arrays are shown to be capable of exhibiting seemingly new collective behaviors which are highly sensitive to the ... -
Sound Radiation Response of a Rectangular Plate Having a Side Crack of Arbitrary Length, Orientation, and Position
(The American Society of Mechanical Engineers (ASME), 2015)Here, sound radiation characteristics of a rectangular plate having a side crack of different crack lengths, orientations, and positions are studied considering clamped boundary conditions. First, a free and forced vibration ... -
Vibroacoustic Comparisons and Acoustic Power Insulation Mechanisms of Multidirectional Stiffened Laminated Plates
(The American Society of Mechanical Engineers (ASME), 2015)Vibroacoustic characteristics of multidirectional stiffened laminated plates with or without compliant layers are explored in the wavenumber and spatial domains with the help of the twodimensional continuous Fourier transform ... -
Nonlinear Dynamic Characteristics of Variable Inclination Magnetically Coupled Piezoelectric Energy Harvesters
(The American Society of Mechanical Engineers (ASME), 2015)This paper investigates the nonlinear dynamic characteristics of a magnetically coupled piezoelectric energy harvester under low frequency excitation where the angle of the external magnetic field is adjustable. The nonlinear ... -
Application of Viscous and Iwan Modal Damping Models to Experimental Measurements From Bolted Structures
(The American Society of Mechanical Engineers (ASME), 2015)Measurements are presented from a twobeam structure with several bolted interfaces in order to characterize the nonlinear damping introduced by the joints. The measurements (all at force levels below macroslip) reveal that ... -
Dispersion Error Reduction for Acoustic Problems Using the Finite Element Least Square Point Interpolation Method
(The American Society of Mechanical Engineers (ASME), 2015)The shape function of the finite elementleast square point interpolation method (FELSPIM) combines the quadrilateral element for partition of unity and the least square point interpolation method (LSPIM) for local ...