Journal of Vibration and Acoustics: Recent submissions
Now showing items 1241-1260 of 3913
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Nonlinear Transient Dynamics of Pendulum Torsional Vibration Absorbers—Part I: Theory
(The American Society of Mechanical Engineers (ASME), 2013)Transient dynamics of centrifugal pendulum vibration absorbers, which are used for reducing torsional vibrations in rotating machines, are investigated using analysis and simulations of a dynamical model. These absorbers ... -
Three to One Resonant Responses of Inextensional Beams on the Elastic Foundation
(The American Society of Mechanical Engineers (ASME), 2013)The large amplitude vibrations of the inextensional beam resting on the elastic foundation under threetoone internal resonance are investigated. The inextensional condition and multimodal discretization are used to obtain ... -
Zero Energy Active Suspension System for Automobiles With Adaptive Sky Hook Damping
(The American Society of Mechanical Engineers (ASME), 2013)Previous research has shown that a semiactive automotive suspension system can provide significant benefits compared to a passive suspension but cannot quite match the performance of a fully active system. The advantage ... -
The Influence of Tank Orientation Angle on a 2D Structure Tuned Liquid Damper System
(The American Society of Mechanical Engineers (ASME), 2013)Tuned liquid dampers (TLDs) utilize sloshing fluid to absorb and dissipate structural vibrational energy, thereby reducing wind induced dynamic motion. By selecting the appropriate tank length, width, and fluid depth, a ... -
Free Vibration Analysis of Laminated Soft Core Sandwich Plates
(The American Society of Mechanical Engineers (ASME), 2013)Free vibration behavior of laminated soft core sandwich plates with stiff laminated face sheets is investigated using a new C0 finite element (FE) model based on higher order zigzag theory (HOZT) in this paper. The inplane ... -
Theoretical and Experimental Analysis of the Nonlinear Characteristics of an Air Spring With an Orifice
(The American Society of Mechanical Engineers (ASME), 2013)We herein propose a simple but accurate method for calculating the dynamic properties of an air spring that uses an orifice to produce a damping force. Air springs are commonly used in rail, automotive, and vibration ... -
A Domain Decomposition Method for Vibration Analysis of Conical Shells With Uniform and Stepped Thickness
(The American Society of Mechanical Engineers (ASME), 2013)An efficient domain decomposition method is proposed to study the free and forced vibrations of stepped conical shells (SCSs) with arbitrary number of step variations. Conical shells with uniform thickness are treated as ... -
An Impedance Based Approach for Rods With Shear Type Damping Layer Treatment
(The American Society of Mechanical Engineers (ASME), 2013)An impedancebased approach for analyzing an axial rod with sheartype damping layer treatment is proposed. The rod and sheartype damping layer are regarded as two subsystems and both impedances are calculated analytically. ... -
Dynamic Effect of Bearing Wear on Rotor Bearing System Response
(The American Society of Mechanical Engineers (ASME), 2013)A rotorbearing system is simulated in this study to investigate the effect of worn journal bearings on the system response and to specify the eventual development of additional frequency components. The wellknown symmetric ... -
Identification of Acoustic Characteristics of Honeycomb Sandwich Composite Panels Using Hybrid Analytical/Finite Element Method1
(The American Society of Mechanical Engineers (ASME), 2013)For the purpose of identifying the acoustic characteristics of honeycomb sandwich panels, finite element method (FEM), combined with boundary element method (BEM), has been widely used. However, the latter approach is not ... -
Analyzing Acoustic Radiation Modes of Baffled Plates With a Fast Multipole Boundary Element Method
(The American Society of Mechanical Engineers (ASME), 2013)In the analysis of an acoustic radiation mode of a baffled plate, Rayleigh integral with free space Green's function is involved. The boundary element method (BEM) is one of the approaches to compute its modes and radiation ... -
Energy Harvesting, Ride Comfort, and Road Handling of Regenerative Vehicle Suspensions
(The American Society of Mechanical Engineers (ASME), 2013)This paper presents a comprehensive assessment of the power that is available for harvesting in the vehicle suspension system and the tradeoff among energy harvesting, ride comfort, and road handing with analysis, simulations, ... -
Measurements of Piezoelectric Coefficient d33 of Lead Zirconate Titanate Thin Films Using a Mini Force Hammer
(The American Society of Mechanical Engineers (ASME), 2013)Lead zirconate titanate (PbZrxTi1xO3, or PZT) is a piezoelectric material widely used as sensors and actuators. For microactuators, PZT often appears in the form of thin films to maintain proper aspect ratios. One major ... -
Acoustic Radiation From Stiffened Cylindrical Shells With Constrained Layer Damping
(The American Society of Mechanical Engineers (ASME), 2013)Acoustic radiation from cylindrical shells stiffened by two sets of rings, with constrained layer damping (CLD), is investigated theoretically. The governing equations of motion for the cylindrical shell with CLD are ... -
An Ultrasonic Through Wall Communication (UTWC) System Model
(The American Society of Mechanical Engineers (ASME), 2013)Ultrasonic waves at 1 MHz are used to send information across solid walls without the needs for through wall penetrations. A communication channel is established by attaching a set of three ultrasonic transducers to the ... -
A Novel Method of Designing Quiet Zones in Diffuse Fields
(The American Society of Mechanical Engineers (ASME), 2013)This paper presents the analysis of quiet zones in broadband diffuse fields using twoand threechannel systems. An optimization method combining a neural network with a search algorithm has been used to design quiet zones ... -
A New Method for Dynamic Modeling of Flexible-Link Flexible-Joint Manipulators
(The American Society of Mechanical Engineers (ASME), 2012)In this article, by combining the assumed mode shape method and the Lagrange’s equations, a new and efficient method is introduced to obtain a closed-form finite dimensional dynamic model for ... -
In Situ Active Noise Cancellation Applied to Magnetic Resonance Imaging
(The American Society of Mechanical Engineers (ASME), 2012)Magnetic Resonance Imaging (MRI) is a powerful medical diagnostic tool. Unfortunately, the loud sound produced during scanning is unpleasant, potentially harmful to patients, and may limit imaging ... -
Quadratic Mode Shape Components From Linear Finite Element Analysis
(The American Society of Mechanical Engineers (ASME), 2012)Points on a vibrating structure move along curved paths rather than straight lines; however, this is largely ignored in modal analysis. Applications where the curved path of motion cannot be ... -
Buckling and Vibration of Elastically Restrained Standing Vertical Plates
(The American Society of Mechanical Engineers (ASME), 2012)This paper investigates the buckling and vibration of heavy standing plates with rotational elastic edge constraints. The discrete singular convolution (DSC) method as a powerful numerical technique ...