Journal of Vibration and Acoustics: Recent submissions
Now showing items 2341-2360 of 3913
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Structural-Acoustic Coupling Analysis of the Vehicle Passenger Compartment with the Roof, Air-Gap, and Trim Boundary
(The American Society of Mechanical Engineers (ASME), 2000)A theoretical model is made to investigate the coupling effects of the trim and air gap on the frequency response characteristics of a passenger compartment. With the model, a parametric study ... -
Spatial Discretization of Axially Moving Media Vibration Problems
(The American Society of Mechanical Engineers (ASME), 2000)Spatial discretization of axially moving media eigenvalue problems is examined from the perspectives of moving versus stationary system basis functions, configuration space versus state space form ... -
Active-Passive Hybrid Constrained Layer for Structural Damping Augmentation
(The American Society of Mechanical Engineers (ASME), 2000)A new surface-damping concept with an active-passive hybrid constraining layer (HCL) is proposed to improve the damping performance of traditional active constrained layer (ACL) systems. Instead ... -
Experimental Investigation of Dynamic Normal Characteristics of Machined Joint Surfaces
(The American Society of Mechanical Engineers (ASME), 2000)This paper presents an experimental investigation on the normal dynamic characteristics of several machined joint surfaces, i.e., the varying principle of the normal dynamic stiffness and damping ... -
Some Pitfalls of Simplified Modeling for Viscoelastic Sandwich Beams
(The American Society of Mechanical Engineers (ASME), 2000)It is commonplace in academia to base models of constrained-layer damping treatments on the assumption that the facesheets displace identically during transverse vibrations. This assumption is ... -
Stability Analysis of a Levitated Droplet by Using Floquet Multipliers
(The American Society of Mechanical Engineers (ASME), 2000)In this paper, the analysis of the time evolution of a levitated droplet is proposed. The analysis is composed of two parts: in the first part, a nonlinear dynamics approach was considered ... -
Vibration Analysis of a Sensor-Integrated Ball Bearing
(The American Society of Mechanical Engineers (ASME), 2000)This paper presents an analysis of the vibrational behavior of a deep groove ball bearing with a structurally integrated force sensor. The miniaturized force sensor, accommodated within a slot ... -
Assessment of Damage Affecting All Structural Properties Using Experimental Modal Parameters
(The American Society of Mechanical Engineers (ASME), 2000)Recently, the authors proposed computationally attractive algorithms to determine the location and extent of structural damage for undamped and damped structures assuming damage results in a ... -
Dynamic Absorption by Passive and Active Control1
(The American Society of Mechanical Engineers (ASME), 2000)The motion of a particular degree-of-freedom in a harmonically excited conservative system can be vanished by attaching an appropriate dynamic absorber to it. It is shown here that under certain ... -
Discussion: “Estimating the Probability Distribution of von Mises Stress for Structures Undergoing Random Excitation” [ASME J. Vibr. Acoust., 122, No. 1, pp. 42–48 (2000)]1
(The American Society of Mechanical Engineers (ASME), 2000)In their recent paper 1 Segalman and coauthors estimate the probability distribution for the von Mises stress resulting from Gaussian random loadings of zero mean. Although they do not explain ... -
An Analytical and Experimental Analysis for a One-Dimensional Passive Stand-Off Layer Damping Treatment
(The American Society of Mechanical Engineers (ASME), 2000)Passive stand-off layer (PSOL) damping treatments are presently being implemented in many commercial and defense designs. In a passive stand-off layer damping treatment, a stand-off or spacer ... -
Scaling Laws of Hydrodynamic Noise Generation for a Simple Fluid Valve Model
(The American Society of Mechanical Engineers (ASME), 2000)Noise-source mechanisms for the simple fluid valve model were observed and compared with predicted mechanisms. A comparison of the predicted mechanisms with the experimental data indicated that ... -
Characteristics of a Liquid-Crystal Type ER-Fluid Variable Damper for Semiactive Vibration Suppression
(The American Society of Mechanical Engineers (ASME), 2000)A liquid-crystal type ER-fluid variable damper was fabricated to semiactively suppress the vibration of space truss structure. The principal characteristics of a liquid-crystal variable damper were ... -
Structural Damage Detection Using Linear Matrix Inequality Methods
(The American Society of Mechanical Engineers (ASME), 2000)In this work, linear matrix inequality (LMI) methods are proposed for computationally efficient solution of damage detection problems in structures. The structural damage detection problem that ... -
DSP Implementation of an Active Bearing Mount for Rotors Using Hybrid Control
(The American Society of Mechanical Engineers (ASME), 2000)An on-line active technique for suppressing rotor vibration is proposed. Electromagnetic actuators are mounted on the housing of a ball bearing for generating counter forces to cancel the ... -
Inability of Free-Interface Modes in Representing Stress Resultants Near the Free Interface
(The American Society of Mechanical Engineers (ASME), 2000)As the fundamental cause of the slow convergence of a direct free-interface component mode synthesis method, we point out the inability of free-interface normal modes in representing the stress ... -
Nonlinear Vibrations and Multiple Resonances of Fluid-Filled, Circular Shells, Part 2: Perturbation Analysis
(The American Society of Mechanical Engineers (ASME), 2000)The nonlinear ordinary differential equations describing the dynamics of a fluid filled circular cylindrical shell, obtained in Part 1 of the present study, is studied by using a second order ... -
Nonlinear Vibrations and Multiple Resonances of Fluid-Filled, Circular Shells, Part 1: Equations of Motion and Numerical Results
(The American Society of Mechanical Engineers (ASME), 2000)The response-frequency relationship in the vicinity of a resonant frequency, the occurrence of travelling wave response and the presence of internal resonances are investigated for simply supported, ... -
Measurement of Critical Velocities for Fluidelastic Instability Using Vibration Control
(The American Society of Mechanical Engineers (ASME), 2000)Fluidelastic effects may be responsible for instabilities of heat exchanger tubes when the fluid flow reaches the critical velocity. The fluidelastic phenomenon is usually studied on experimental ... -
Dynamic Formulations and Energy Analysis of Rotating Flexible-Shaft/Multi-Flexible-Disk System With Eddy-Current Brake
(The American Society of Mechanical Engineers (ASME), 2000)In this paper, the rotating flexible-Timoshenko-shaft/flexible-disk coupling system is formulated by introducing the kinetic and strain energies, and the virtual work done by the eddy-current brake ...