Journal of Vibration and Acoustics: Recent submissions
Now showing items 1041-1060 of 3913
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Fringing Electrostatic Field Actuation of Microplates for Open Air Environment Sensing
(The American Society of Mechanical Engineers (ASME), 2014)In the present study, we tested the feasibility of actuation of microplates by fringing electrostatic fields, i.e., field lines between plates and the sidewalls supporting them. Unlike the common closegap actuation mechanism ... -
Forced Vibration of Overhead Transmission Line: Analytical and Experimental Investigation
(The American Society of Mechanical Engineers (ASME), 2014)An analytical model of a single line transmission line carrying a Stockbridge damper is developed based on the Euler–Bernoulli beam theory. The conductor is modeled as an axially loaded beam and the messenger is represented ... -
Application of Time Delay Absorber to Suppress Vibration of a Dynamical System to Tuned Excitation
(The American Society of Mechanical Engineers (ASME), 2014)In this work, we present a comprehensive investigation of the time delay absorber effects on the control of a dynamical system represented by a cantilever beam subjected to tuned excitation forces. Cantilever beam is one ... -
Energy Extraction Based Robust Linear Quadratic Gaussian Control of Acoustic Structure Interaction in Three Dimensional Enclosure
(The American Society of Mechanical Engineers (ASME), 2014)This paper presents an linear quadratic Gaussian (LQG)based robust control strategy for active noise reduction in a 3D enclosure wherein acousticstructure interaction dynamics is present. The acoustic disturbance is created ... -
Study of Moving Sinusoidal Wave Load Across Simple Supported Beam for Sensor Structural Configuration
(The American Society of Mechanical Engineers (ASME), 2014)A continuous structure has several response characteristics that make it a good candidate for a sensor to be used in locating an acoustic source. In this paper, based on a beam structure with simple supports on both ends, ... -
A Comprehensive Study of Vibration Signals for a Thin Shell Structure Using Enhanced Independent Component Analysis and Experimental Validation
(The American Society of Mechanical Engineers (ASME), 2014)Vibration source information (source number, source waveforms, and source contributions) of gears, bearings, motors, and shafts is very important for machinery condition monitoring, fault diagnosis, and especially vibration ... -
Multiphysics Investigations on the Dynamics of Differential Hypoid Gears
(The American Society of Mechanical Engineers (ASME), 2014)Vehicular differential hypoid gears play an important role on the noise, vibration, and harshness (NVH) signature of the drivetrain system. Additionally, the generated friction between their mating teeth flanks under varying ... -
Output Only Modal Identification of a Nonuniform Beam by Using Decomposition Methods
(The American Society of Mechanical Engineers (ASME), 2014)Reducedorder mass weighted proper orthogonal decomposition (RMPOD), smooth orthogonal decomposition (SOD), and state variable modal decomposition (SVMD) are used to extract modal parameters from a nonuniform experimental ... -
Mode Count and Modal Density of Isotropic Circular Cylindrical Shells Using a Modified Wavenumber Space Integration Method
(The American Society of Mechanical Engineers (ASME), 2014)A new method based on the wavenumber space integration algorithm is proposed in order to obtain mode count and modal density of circular cylindrical shells. Instead of the simplified equation of motion, the exact equation ... -
Steady State Responses of Pulley Belt Systems With a One Way Clutch and Belt Bending Stiffness
(The American Society of Mechanical Engineers (ASME), 2014)A nonlinear hybrid discretecontinuous dynamic model is established to analyze the steadystate response of a pulleybelt system with a oneway clutch and belt bending stiffness. For the first time, the translating belt spans ... -
Nonplanar Vibration of a Vertical Fluid Conveying Pipe (Effect of Horizontal Excitation at the Upper End)
(The American Society of Mechanical Engineers (ASME), 2014)Nonlinear and nonplanar lateral vibration of a selfexcited vertical cantilevered pipe conveying fluid is studied for the case that the upper end of the pipe is periodically excited in the horizontal direction. The modulation ... -
Impact Mechanics of Elastic Structures With Point Contact
(The American Society of Mechanical Engineers (ASME), 2014)This paper introduces a modeling framework that is suitable to resolve singularities of impact phenomena encountered in applications. The method involves an exact transformation that turns the continuum, often partial ... -
Wave Propagation and Power Flow Analysis of Sandwich Structures With Internal Absorbers
(The American Society of Mechanical Engineers (ASME), 2014)This study examines wave attenuation and power flow characteristics of sandwich beams with internal absorbers. Two types of absorbing systems embedded in the core are considered, namely, a conventional springmassdashpot ... -
Design Aspects of Nonlinear Vibration Analysis of Rectangular Orthotropic Membranes
(The American Society of Mechanical Engineers (ASME), 2014)The natural frequencies of a specially orthotropic rectangular membrane are examined with respect to its design parameters. A method is presented for inferring the initial tensions from measured vibration frequencies and ... -
Nonlinear System Identification and Modeling of a New Fatigue Testing Rig Based on Inertial Forces
(The American Society of Mechanical Engineers (ASME), 2014)A novel fatigue testing rig based on inertial forces is introduced. The test rig has capacity to mimic various loading conditions including high frequency loads. The rig design allows reconfigurations to accommodate a range ... -
A Study of Three Dimensional Acoustic Scattering by Arbitrary Distribution Multibodies Using Extended Immersed Boundary Method
(The American Society of Mechanical Engineers (ASME), 2014)A threedimensional computational model for acoustic scattering with complex geometries is presented, which employs the immersed boundary technique to deal with the effect of both hard and soft wall boundary conditions on ... -
Detecting Loosening of Bolted Connections in a Pipeline Using Changes in Natural Frequencies
(The American Society of Mechanical Engineers (ASME), 2014)Loosening of bolted connections in a structure can significantly reduce its loadbearing capacity. Detecting loosening of bolted connections at an early stage can prevent failure of the structure. Due to the complex geometry ... -
“Eclipse†Bifurcation in a Twinkling Oscillator
(The American Society of Mechanical Engineers (ASME), 2014)This work regards the use of cubic springs with intervals of negative stiffness, in other words, “snapthrough†elements, in order to convert lowfrequency ambient vibrations into highfrequency oscillations, referred to ... -
Bryan's Factor for Truncated Spherical and Conical Shells
(The American Society of Mechanical Engineers (ASME), 2014)Closedform expressions are derived for the Bryan's factor of truncated spherical and conical shells through a Galerkin procedure. Results lead to the value obtained by G. H. Bryan for the case of the ring, thereby demonstrating ... -
Analysis and Experimental Estimation of Nonlinear Dispersion in a Periodic String
(The American Society of Mechanical Engineers (ASME), 2014)Wave dispersion in a string carrying periodically distributed masses is investigated analytically and experimentally. The effect of the string's geometric nonlinearity on its wave propagation characteristics is analyzed ...