Journal of Vibration and Acoustics: Recent submissions
Now showing items 1461-1480 of 3913
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Morton Effect Induced Synchronous Instability in Mid-Span Rotor–Bearing Systems, Part 2: Models and Simulations
(The American Society of Mechanical Engineers (ASME), 2011)The mechanism of the Morton Effect induced synchronous instability has been discussed in Part 1, using an assumption of isotropic linear bearings. The second part of the current study will now ... -
Experimental Researches on Reducing the Critical Acceleration That Induces Sustainable Rotor Rubbing
(The American Society of Mechanical Engineers (ASME), 2011)When an imbalanced rotor is sped up to pass through the critical speed with a constant acceleration, sustainable rubbing can be induced if the maximum vibration amplitude of the rotor exceeds ... -
Effects of Dimensional Reduction Techniques on Structural Damage Assessment Under Uncertainty
(The American Society of Mechanical Engineers (ASME), 2011)In this paper, we present a study of dimensional reduction techniques for structural damage assessment of time-varying structures under uncertainty. Discrete tracking of the frequency response and ... -
Effect of Functionally Graded Materials on Resonances of Bending Shafts Under Time-Dependent Axial Loading
(The American Society of Mechanical Engineers (ASME), 2011)The effect of functionally graded materials (FGMs) on resonances of bending shafts under time-dependent axial loading is investigated. The axial load is taken to be a sinusoidal function of ... -
Boundary Stabilization of Parachute Dams in Contact With Fluid
(The American Society of Mechanical Engineers (ASME), 2011)The boundary stabilization of a coupled fluid-structure system consisting of a vibrating parachute dam in contact with a fluid is studied in this paper. The parachute dam dynamics is presented ... -
Feature Selection for Fault Detection in Rolling Element Bearings Using Mutual Information
(The American Society of Mechanical Engineers (ASME), 2011)Rolling element bearings are among the key components in many rotating machineries. It is hence necessary to determine the condition of the bearing with a reasonable degree of confidence. Many ... -
Accounting for Roller Dynamics in the Design of Bifilar Torsional Vibration Absorbers
(The American Society of Mechanical Engineers (ASME), 2011)Centrifugal pendulum vibration absorbers are used for reducing engine-order torsional vibrations in rotating machines. The most common configuration of these devices utilizes a bifilar suspension ... -
Eulogy for Wolfgang Neise
(The American Society of Mechanical Engineers (ASME), 2011)Wolfgang Neise, renowned for his life-long contributions to advancing the state-of-the-art of the aeroacoustics of turbomachines, died on April 30, 2011 of cancer. He would have celebrated his ... -
Experimental Study of Vibration Damping in a Modified Elastic Wedge of Power-Law Profile
(The American Society of Mechanical Engineers (ASME), 2011)The objective of this research is to evaluate and propose a modified elastic wedge as passive damping system for structural damping. An elastic wedge is a plate whose thickness decreases ... -
A New Low-Frequency Resonance Sensor for Low Speed Roller Bearing Monitoring
(The American Society of Mechanical Engineers (ASME), 2010)The resonance demodulation technique has been widely used to detect rolling bearing faults based on the signal acquired by piezoelectric accelerometers. However, this method is ineffective in ... -
Forced Response Analysis of Integrally Bladed Disks With Friction Ring Dampers
(The American Society of Mechanical Engineers (ASME), 2010)This paper investigates a damping strategy for integrally bladed disks (blisks) based on the use of friction rings. The steady-state forced response of the blisk with friction rings is derived ... -
Elimination of Unstable Ranges of Rotors Utilizing Discontinuous Spring Characteristics: An Asymmetrical Shaft System, an Asymmetrical Rotor System, and a Rotor System With Liquid
(The American Society of Mechanical Engineers (ASME), 2010)Unstable vibration occurs in the vicinities of the major critical speeds of asymmetrical shaft and rotor systems. It occurs also in a wide rotational speed range higher than the major critical ... -
Micropolar Continuous Modeling and Frequency Response Validation of a Lattice Structure
(The American Society of Mechanical Engineers (ASME), 2010)A simple approach is employed here to determine an equivalent continuum representation of a lattice type structure with flexible joints. Kinetic and strain energy expressions are written in terms ... -
The Transmissibility of Vibration Isolators With a Nonlinear Antisymmetric Damping Characteristic
(The American Society of Mechanical Engineers (ASME), 2010)In the present study, the concept of the output frequency response function, recently proposed by the authors, is applied to theoretically investigate the force transmissibility of single degree ... -
Steady-State Transverse Response in Coupled Planar Vibration of Axially Moving Viscoelastic Beams
(The American Society of Mechanical Engineers (ASME), 2010)Steady-state periodical response is investigated for planar vibration of axially moving viscoelastic beams subjected external transverse loads. A model of the coupled planar vibration is established ... -
Sound Transmission Through Simply Supported Finite Double-Panel Partitions With Enclosed Air Cavity
(The American Society of Mechanical Engineers (ASME), 2010)The vibro-acoustic performance of a rectangular double-panel partition with enclosed air cavity and simply mounted on an infinite acoustic rigid baffle is investigated analytically. The sound ... -
Improved Experimental Ritz Vector Extraction With Application to Damage Detection
(The American Society of Mechanical Engineers (ASME), 2010)Load-dependent Ritz vectors, or Lanczos vectors, are alternatives to mode shapes as a set of orthogonal vectors used to describe the dynamic behavior of a structure. Experimental Ritz vectors ... -
Nonlinear Model Based Estimation of Rigid-Body Motion Via an Indirect Measurement of an Elastic Appendage
(The American Society of Mechanical Engineers (ASME), 2010)In this paper, we develop and implement a nonlinear model based procedure for the estimation of rigid-body motion via an indirect measurement of an elastic appendage. We demonstrate the procedure ... -
Vibration of a Segmented Heavy Column
(The American Society of Mechanical Engineers (ASME), 2010)The vibration of a standing (or hanging) segmented column, affected by its own weight, is studied. The governing difference equations are solved numerically. The results tend to those of the ... -
Tire Damping Effect on H2 Optimal Control of Half-Car Active Suspensions
(The American Society of Mechanical Engineers (ASME), 2010)In this note, the root-mean-square response of a half-car model following a random road profile is studied. Road excitation at the front wheel is modeled by a first-order linear shape filter ...