Journal of Vibration and Acoustics: Recent submissions
Now showing items 2281-2300 of 3913
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Time Periodic Control of a Bladed Disk Assembly Using Shaft Based Actuation
(The American Society of Mechanical Engineers (ASME), 2001)For a tuned or symmetrically mistuned bladed disk assembly, several vibration modes are coupled only to the axial dynamics, which forces controllers to rely on an axial actuator. A control ... -
Numerical and Experimental Studies on Nonlinear Dynamic Behaviors of a Rotor-Fluid Film Bearing System With Squeeze Film Dampers
(The American Society of Mechanical Engineers (ASME), 2001)In this paper, the nonlinear oil film forces of bearings and dampers with free boundary conditions are determined by the finite element method (FEM) and the complementary solution for variational ... -
Dynamic Modeling and Vibration Analysis of the Atomic Force Microscope
(The American Society of Mechanical Engineers (ASME), 2001)The objective of this paper is to formulate the equations of motion and to investigate the vibrations of the atomic force microscope (AFM), which is divided into the contact and noncontact ... -
The Effect of Tooth Wear on the Vibration Spectrum of a Spur Gear Pair
(The American Society of Mechanical Engineers (ASME), 2001)In this paper, the effect of tooth wear on the vibration spectrum variation of a rotating spur gear pair is studied. In order to approximate the dynamic characteristics of an engaging spur ... -
Wavelet Analysis and Envelope Detection For Rolling Element Bearing Fault Diagnosis—Their Effectiveness and Flexibilities
(The American Society of Mechanical Engineers (ASME), 2001)The components which often fail in a rolling element bearing are the outer-race, the inner-race, the rollers, and the cage. Such failures generate a series of impact vibrations in short time ... -
Approximation of Power Flow Between Two Coupled Beams Using Statistical Energy Methods
(The American Society of Mechanical Engineers (ASME), 2001)In this work, an investigation is performed into developing a general framework for predicting the power flow between coupled component structures with uncertain system parameters. A specific ... -
Autonomous Vibration Suppression Using On-Line Pole-Zero Identification
(The American Society of Mechanical Engineers (ASME), 2001)An on-line identification and control algorithm is developed based on the properties of collocated sensing and actuation. The feedback control law consists of second-order compensators that achieve ... -
Reduction of Noise Transmission in a Duct by Termination Impedance Control of a Sidebranch Resonator
(The American Society of Mechanical Engineers (ASME), 2001)This paper investigates the use of a sidebranch resonator subjected to active termination impedance control as a means to reduce noise transmission in a duct. The main purpose of this paper ... -
Genetic Spatial Optimization of Active Elements on an Aeroelastic Delta Wing
(The American Society of Mechanical Engineers (ASME), 2001)This work outlines a cohesive approach for the design and implementation of a genetically optimized, active aeroelastic delta wing. Emphasis was placed on computational efficiency of model ... -
A Time Domain Method for Estimating Forces Applied to an Unrestrained Structure
(The American Society of Mechanical Engineers (ASME), 2001)A new method for the estimation of forces applied to a structure is presented. This time domain technique uses the structures response time history and returns an estimate of the applied force ... -
Natural Frequencies of Rotating Uniform Beams with Coriolis Effects
(The American Society of Mechanical Engineers (ASME), 2001)A Dynamic Finite Element (DFE) for vibrational analysis of rotating assemblages composed of beams is presented in which the complexity of the acceleration, due to the presence of gyroscopic, ... -
An Experimental Evaluation of Smart Damping Materials for Reducing Structural Noise and Vibrations
(The American Society of Mechanical Engineers (ASME), 2001)An experimental evaluation of the benefits of smart damping materials in reducing structural noise and vibration is presented. The construction of a special test rig for measuring both vibrations ... -
Combined Methodology for Analysis of Rotary Systems
(The American Society of Mechanical Engineers (ASME), 2001)This study develops a numerical method for analyzing the unbalanced effect of rotary systems by combining the finite element method, the transfer matrix method, the time marching numerical ... -
Characterization of Delamination in Beams Using Flexural Wave Scattering Analysis
(The American Society of Mechanical Engineers (ASME), 2001)An analytical model for the characterization of delamination in beams using flexural wave scattering analysis is presented. In the beam model of wave propagation, the beam is divided into four ... -
Discussion: “Optimum Design of Vibration Absorbers for Structurally Damped Timoshenko Beams” (Esmailzadeh, E., and Jalili, N., 1998, ASME J. Vib. Acoust., 120, pp. 833–841)
(The American Society of Mechanical Engineers (ASME), 2001)In a recent paper by E. Esmailzadeh and N. Jalili the design of optimal vibration absorbers for Timoshenko beams was discussed. While the paper is interesting, the solution seems to be ... -
Modeling Vibratory Drilling Dynamics
(The American Society of Mechanical Engineers (ASME), 2001)The dynamic behavior of deep-hole vibratory drilling is analyzed. The mathematical model presented allows the determination of axial tool and workpiece displacements and cutting forces for significant ... -
On the Equivalence of Dispersion Relations Resulting from Rayleigh-Lamb Frequency Equation and the Operator Plate Model
(The American Society of Mechanical Engineers (ASME), 2001)The Rayleigh-Lamb frequency equations for the free vibrations of an infinite isotropic elastic plate are expanded into the infinite power series and reduced to the polynomial frequency and ... -
Estimating the Probability Distribution of von Mises Stress for Structures Undergoing Random Excitation
(The American Society of Mechanical Engineers (ASME), 2000)The von Mises stress is often used as the metric for evaluating design margins, particularly for structures made of ductile materials. For deterministic loads, both static and dynamic, the ... -
Investigations of Stochastic Layers in Nonlinear Dynamics
(The American Society of Mechanical Engineers (ASME), 2000)The onset of a new resonance in the stochastic layer is predicted numerically through the maximum and minimum energy spectra when the energy jump in the spectra occurs. The incremental energy ... -
Damping Effect of Winding on the Lateral Vibrations of Axially Moving Tapes
(The American Society of Mechanical Engineers (ASME), 2000)The lateral vibrations of winding tapes are investigated by using a second order linear model, where lateral indicates the direction parallel to the reel rotation axis. A boundary condition ...