Journal of Vibration and Acoustics: Recent submissions
Now showing items 1641-1660 of 3913
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Fabrication, Testing, and Modeling of Carbon Nanotube Composites for Vibration Damping
(The American Society of Mechanical Engineers (ASME), 2009)In this research, carbon nanotube (CNT) composite with epoxy resin is fabricated. The dynamic properties of the nanotube composites are evaluated. A testing apparatus for obtaining dynamic ... -
Vibration Mode Analysis of Frames by the Method of Reverberation Ray Matrix
(The American Society of Mechanical Engineers (ASME), 2009)The method of reverberation ray matrix (MRRM) has been developed by (1999, “ Dynamic Response and Wave Propagation in Plane Trusses and Frames,” AIAA J., 37(5), pp. 594–603) recently based on ... -
Gas Void Fraction Measurement in Two-Phase Gas/Liquid Slug Flow Using Acoustic Emission Technology
(The American Society of Mechanical Engineers (ASME), 2009)The gas-liquid two-phase slug flow regime phenomenon is commonly encountered in the chemical engineering industry, particularly in oil and gas production transportation pipelines. Slug flow regime ... -
Effects of a Cracked Blade on Mistuned Turbine Engine Rotor Vibration
(The American Society of Mechanical Engineers (ASME), 2009)An efficient methodology for predicting the nonlinear forced vibration response of a turbine engine rotor with a cracked blade is presented and used to investigate the effects of the damage ... -
Study on Nonlinear Dynamic Response of an Unbalanced Rotor Supported on Ball Bearing
(The American Society of Mechanical Engineers (ASME), 2009)An unbalanced rotor dynamic model supported on ball bearings is established. In the model, three nonlinear factors of ball bearing are considered, namely, the clearance of bearing, nonlinear ... -
Multimode Dynamics and Out-of-Plane Drift in Suspended Cable Using the Kinematically Condensed Model
(The American Society of Mechanical Engineers (ASME), 2009)The large amplitude vibration and modal interactions of shallow suspended cable with three-to-three-to-one internal resonances are investigated. The quasistatic assumption and direct approach are ... -
Experimental Testing and Validation of a Magnetorheological (MR) Damper Model
(The American Society of Mechanical Engineers (ASME), 2009)The focus of this paper is on the experimental validation of a mathematical model that was developed for the flow of magnetorheological (MR) fluids through the annular gap in a MR damper. ... -
Three-Dimensional Multiple Scattering of Elastic Waves by Spherical Inclusions
(The American Society of Mechanical Engineers (ASME), 2009)This paper extends the scatterer polymerization methodology to three-dimensional multiple scattering of elastic waves by spherical inclusions. The methodology was originally developed for analyzing ... -
Experimental Aeroacoustic Studies on Improved Tip Configurations for Passive Control of Noise Signatures in Low-Speed Axial Fans
(The American Society of Mechanical Engineers (ASME), 2009)This paper presents the findings of an investigation on the use of several blade-tip configurations (modified by the addition of various end plates at the blade tip) for passive noise control ... -
Mathematical Modeling, Analysis, and Design of Magnetorheological (MR) Dampers
(The American Society of Mechanical Engineers (ASME), 2009)Most magnetorheological (MR) fluid dampers are designed as fixed-pole valve mode devices, where the MR fluid is forced to flow through a magnetically active annular gap. This forced flow generates ... -
Energy Based Comparison of Test and Analysis Response in the Frequency Domain
(The American Society of Mechanical Engineers (ASME), 2009)Accepted modal based techniques for comparing finite element model and test data for test/analysis correlation and subsequent model updating are impossible to use in the high modal density ... -
Optimization of a Two Degree of Freedom System Acting as a Dynamic Vibration Absorber
(The American Society of Mechanical Engineers (ASME), 2008)This paper deals with the problem of finding the optimal stiffnesses and damping coefficients of a two degree of freedom (2DOF) system acting as a dynamic vibration absorber (DVA) on a beam ... -
Chaotic Synchronization in Ultra-Wide-Band Communication and Positioning Systems
(The American Society of Mechanical Engineers (ASME), 2008)This paper investigates synchronization transitions in a system of coupled Rössler type nonidentical self-sustained chaotic oscillators. The interest in Rössler oscillators is due to their ... -
Implementation of Single and Multiple Adaptive Step-Size Algorithm to ANC
(The American Society of Mechanical Engineers (ASME), 2008)The purpose of this paper is to investigate a modified adaptive step-size algorithm and implement an active noise control (ANC) system. It is well known that there is a tradeoff between steady ... -
Numerical and Experimental Studies of Gas Pulsations in the Suction Manifold of a Multicylinder Automotive Compressor
(The American Society of Mechanical Engineers (ASME), 2008)This study predicts gas pulsations in the suction manifold of a multicylinder automotive air-conditioning compressor using a comprehensive simulation model of a reciprocating compressor. On the ... -
Active Wave Control of String Near Fixed Boundary
(The American Society of Mechanical Engineers (ASME), 2008)We studied a wave control of a string near a fixed end. The equation of motion of a string is approximated as a lumped-parameter spring-and-mass system using the finite difference method. ... -
Acoustic Response Synthesis Using Multiple Induced-Strain Actuators
(The American Society of Mechanical Engineers (ASME), 2008)A methodology to synthesize a predesignated acoustic response using a structure driven by multiple induced-strain actuators, e.g., piezoelectric (PZT) patches, is presented. The proposed approach ... -
Dynamic Modeling of Satellite Tether Systems Using Newton’s Laws and Hamilton’s Principle
(The American Society of Mechanical Engineers (ASME), 2008)The objective of this paper is to derive the dynamic equations of a tether as it is deployed or retrieved by a winch on a satellite orbiting around Earth using Newton’s laws and Hamilton’s ... -
Dynamic Stiffness Analysis of a Beam Based on Trigonometric Shear Deformation Theory
(The American Society of Mechanical Engineers (ASME), 2008)The dynamic stiffness matrix of a uniform isotropic beam element based on trigonometric shear deformation theory is developed in this paper. The theoretical expressions for the dynamic stiffness ... -
Effect of Boundary Conditions on Nonlinear Vibration and Flutter of Laminated Cylindrical Shells
(The American Society of Mechanical Engineers (ASME), 2008)A nonlinear vibration analysis of laminated cylindrical shells is presented in which the effect of the specified boundary conditions at the shell edges, including nonlinear fundamental state ...