Journal of Vibration and Acoustics: Recent submissions
Now showing items 1061-1080 of 3913
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Effect of Dimple Offset on the Operational Shock Performance of Small Form Factor Disk Drives
(The American Society of Mechanical Engineers (ASME), 2014)This paper discusses the effect of varying the suspension load dimple location on the shock robustness of small form factor hard disk drives. We use the CML shock simulator, which simulates the structural as well as the ... -
Probabilistic Solution of Vibro Impact Systems Under Additive Gaussian White Noise
(The American Society of Mechanical Engineers (ASME), 2014)This paper presents a solution procedure for the stationary probability density function (PDF) of the response of vibroimpact systems under additive Gaussian white noise. The constraint is a unilateral zerooffset barrier. ... -
Fan Noise Control Using Microperforated Splitter Silencers
(The American Society of Mechanical Engineers (ASME), 2014)Splitter or baffle silencers are commonly used, for example, in heating ventilation and air conditioning (HVAC) systems and as inlet/outlet silencers on gas turbines. Another application is to reduce noise from the cooling ... -
Nonlinear Analysis of Vibro Impacts for Unloaded Gear Pairs With Various Excitations and System Parameters
(The American Society of Mechanical Engineers (ASME), 2014)Torsional systems with clearancetype nonlinearities have inherent vibratory problems such as gear rattle. Such vibroimpacts generally occur on the unloaded gear pairs of a vehicle correlated with the firing excitation of ... -
A General Analytical Method for Vibroacoustic Analysis of an Arbitrarily Restrained Rectangular Plate Backed by a Cavity With General Wall Impedance
(The American Society of Mechanical Engineers (ASME), 2014)A general modeling method is developed for the vibroacoustic analysis of an arbitrarily restrained rectangular plate backed by a cavity with general wall impedance. The present method provides a uniform way to obtain the ... -
Stiffness Sensor for Cubic Nonlinear Elasticity Using Nonlinear Self Excited Oscillation
(The American Society of Mechanical Engineers (ASME), 2014)The present paper develops a nonlinear stiffness sensor for measuring cubic nonlinear elasticity. The measurement system consists of a vibrator with a control circuit. We apply linearplusnonlinear feedback to actuate the ... -
Analytical and Experimental Investigation of Buckled Beams as Negative Stiffness Elements for Passive Vibration and Shock Isolation Systems
(The American Society of Mechanical Engineers (ASME), 2014)The behavior of a buckled beam mechanism, which exhibits both bistability and negative stiffness, is investigated for the purposes of passive shock and vibration isolation. The vibration and shock isolation systems ... -
An Analytical Model for Thermoelastic Damping in Microresonators Based on Entropy Generation
(The American Society of Mechanical Engineers (ASME), 2014)This paper presents an analytical model for thermoelastic damping (TED) in micromechanical resonators, which is based on entropy generation, a thermodynamic parameter measuring the irreversibility in heat conduction. The ... -
Study of Far Field Pyroshock Responses of Composite Panels
(The American Society of Mechanical Engineers (ASME), 2014)The experimental and numerical studies on farfield pyroshock responses of composite panels are presented in this paper. The purpose of this study is to find out the region of composite panel where the pyroshock response ... -
Analysis of Supersonic and Transonic Panel Flutter Using a Fluid Structure Coupling Algorithm
(The American Society of Mechanical Engineers (ASME), 2014)In order to analyze the supersonic and transonic panel flutter behaviors quantitatively and accurately, a fluidstructure coupling algorithm based on the finite element method (FEM) is proposed to study the twodimensional ... -
Piezoelectric Shunt Vibration Damping of Structural Acoustic Systems: Finite Element Formulation and Reduced Order Model
(The American Society of Mechanical Engineers (ASME), 2014)For noise and vibration attenuation, various approaches can be employed depending on the frequency range to attenuate. Generally, active or passive piezoelectric techniques are effective in the lowfrequency range, while ... -
Extracting Rolling Element Bearing Faults From Noisy Vibration Signal Using Kalman Filter
(The American Society of Mechanical Engineers (ASME), 2014)Vibration analysis has been widely accepted as a common and reliable method for bearing fault identification, however, the presence of noise in the measured signal poses the maximum amount of difficulty. Therefore, for the ... -
Elasto Dynamic Behavior of a Two Dimensional Square Lattice With Entrained Fluid II: Microstructural and Homogenized Models
(The American Society of Mechanical Engineers (ASME), 2014)This paper presents a detailed study of the pressure waves and effective mechanical properties of a closedcell cellular solid with entrained fluid. Planeharmonicwaves are analyzed in a periodic square with a finiteelement ... -
Optimal Design of a Helmholtz Resonator With a Flexible End Plate
(The American Society of Mechanical Engineers (ASME), 2014)This paper describes a design process that produces a small volume Helmholtz resonator capable of achieving high transmission loss across a desired frequency range. A multiobjective optimization formulation was used to ... -
A Disturbance Cancellation Perspective on Vibration Control Using a Bistable Snap Through Attachment
(The American Society of Mechanical Engineers (ASME), 2014)One approach to vibration control is to apply a force to a primary structure that opposes the excitation, effectively canceling the external disturbance. A familiar passive example of this approach is the lineartuned mass ... -
Damping Analysis of Multilayer Passive Constrained Layer Damping on Cylindrical Shell Using Transfer Function Method
(The American Society of Mechanical Engineers (ASME), 2014)Based on the Donnell assumptions and linear viscoelastic theory, the constitutive relations for the multilayer passive constrained layer damping (PCLD) cylindrical shell are described. In terms of energy, the motion equations ... -
Discussion: “Optimization of a Two Degree of Freedom System Acting as a Dynamic Vibration Absorber†(Febbo, M., and Vera, S. A., 2008, ASME J. Vib. Acoust., 130, p. 011013)
(The American Society of Mechanical Engineers (ASME), 2014)We present this discussion on “Optimization of a Two Degree of Freedom System Acting as a Dynamic Vibration Absorber,†by M. Febbo and S. A. Vera, published in the Feb. 2008 issue of the ASME Journal of Vibration and ... -
Evaluation of Groebner Basis Methodology as an Aid to Harmonic Balance
(The American Society of Mechanical Engineers (ASME), 2014)A preliminary exploration is carried out of the utility of the Groebner basis method for implementing the harmonic balance analysis of nonlinear steady state vibrations. The method is found to be worthy of further investigation. -
Static and Dynamic Response of Beams on Nonlinear Viscoelastic Unilateral Foundations: A Multimode Approach
(The American Society of Mechanical Engineers (ASME), 2014)Nonlinear viscoelastic behavior is a characteristic of many engineering materials including flexible polyurethane foam, yet it is difficult to develop dynamic models of systems that include these materials and are able to ... -
Harmonic Transfer Function to Measure Translational and Rotational Velocities With Continuous Scan Laser Doppler Vibrometry
(The American Society of Mechanical Engineers (ASME), 2014)A laser Doppler vibrometer measures the translational velocity at a point along the direction of incident light. It has been shown that rotational velocities can also be recovered when the laser scans continuously along a ...