Journal of Vibration and Acoustics: Recent submissions
Now showing items 3061-3080 of 3913
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Self-Synchronization of Two Unbalanced Rotors
(The American Society of Mechanical Engineers (ASME), 1992)The paper presents an analytical method to ascertain the conditions for self-synchronization of a mechanical system excited by two unbalanced rotors with their axes of rotation arranged in any ... -
Suboptimum Maximum Likelihood Estimation of Structural Parameters from Multiple-Excitation Vibration Data
(The American Society of Mechanical Engineers (ASME), 1992)In this paper an effective stochastic and multiple-excitation single-response approach to structural dynamics identification is introduced. The proposed approach accounts for many previously unaccounted ... -
Vibration Damping Through Liquid Sloshing, Part I: A Nonlinear Analysis
(The American Society of Mechanical Engineers (ASME), 1992)Energy dissipation due to sloshing liquid in rigid torus shaped containers is studied using the potential flow model in conjunction with the boundary layer correction. The analysis is based on ... -
Stability Analysis of a 2” Floppy Disk Drive System and the Optimum Design of the Disk Stabilizer
(The American Society of Mechanical Engineers (ASME), 1992)This paper presents a study on the stability of a 2″ floppy disk drive system. A design method of the disk stabilizer that makes the rotating disk stable is presented. The stabilizer and ... -
Does Curve Veering Occur in the Eigenvalue Problem of Rotors?
(The American Society of Mechanical Engineers (ASME), 1992)Recently, Crandall and Yeh (1989) reported an interesting phenomenon in the Campbell diagram of a single spool machine. In their words, “It is interesting that . . . the two modes form a ... -
Consistent Modeling of Rotating Timoshenko Shafts Subject to Axial Loads
(The American Society of Mechanical Engineers (ASME), 1992)The equations of motion of a flexible rotating shaft have been typically derived by introducing gyroscopic moments, in an inconsistent manner, as generalized work terms in a Lagrangian formulation ... -
Pressure Pulsations in Centrifugal Pumps
(The American Society of Mechanical Engineers (ASME), 1992)Pressure pulsations in centrifugal pumps are created by the wake flow from the impeller blade trailing edge and by large-scale turbulence and vortices generated by flow separation and flow ... -
Vibration Damping Through Liquid Sloshing, Part 2: Experimental Results
(The American Society of Mechanical Engineers (ASME), 1992)Experiments designed to evaluate performance of partially filled torus shaped nutation dampers, undergoing steady-state forced excitation in translational motion, are described. The forces exerted ... -
Finite Element Modeling of Dynamic Behavior of Some Basic Structural Members
(The American Society of Mechanical Engineers (ASME), 1992)A method is described to model the dynamics of finite elements. The assumed modes method is used to show how static shape functions approximate the element mass distribution. The deterioration ... -
Bifurcations of a Nonlinear Two-Degree-of-Freedom System Under Narrow-Band Stochastic Excitation
(The American Society of Mechanical Engineers (ASME), 1992)In this paper, bifurcations of a nonlinear two-degree-of-freedom system subjected to a narrow-band stochastic excitation are investigated. Under the assumption that the correlation time greatly ... -
Investigation on the Steady-State Responses of Asymmetric Rotors
(The American Society of Mechanical Engineers (ASME), 1992)This paper is to generalize the previous work by utilizing finite element formulation to accommodate the effects of both deviatoric inertia and stiffness due to asymmetry of flexible shaft and ... -
Coriolis Effect on the Vibration of a Cantilever Plate With Time-Varying Rotating Speed
(The American Society of Mechanical Engineers (ASME), 1992)A method for investigating the Corilois effect on the vibration of a cantilever plate rotating at a time-varying speed is presented in this paper. Due to this time-dependent speed, parametric ... -
Free and Forced Longitudinal Vibrations of a Cantilevered Bar With a Crack
(The American Society of Mechanical Engineers (ASME), 1992)Longitudinal vibrations of a cantilevered bar with a transverse crack are investigated. For undamped, unforced vibrations, frequency spectra are computed and the effects of the crack location and ... -
An Application of Torsional Wave Analysis to Turbogenerator Rotor Shaft Response
(The American Society of Mechanical Engineers (ASME), 1992)In this paper transient torsional vibrations of a steam turbogenerator rotor shaft system due to high speed reclosing of the electric network are investigated. The analysis is performed using ... -
A Modal Synthesis Technique Based on the Force Derivative Method
(The American Society of Mechanical Engineers (ASME), 1992)In this paper a new free interface modal synthesis method for the dynamic analysis of linear structures by the finite element method is developed. The technique is based on the so called ... -
A Modified Model Referenced Adaptive Control Technique for Nonlinear Dynamic Systems
(The American Society of Mechanical Engineers (ASME), 1992)It has been shown that the model referenced adaptive control (MRAC) scheme developed by Dubowsky and DesForges (1979) is effective for controlling nonlinear systems provided that the adjusting ... -
A Transfer Matrix Technique for Evaluating the Natural Frequencies and Critical Speeds of a Rotor With Multiple Flexible Disks
(The American Society of Mechanical Engineers (ASME), 1992)The influence of disk flexibility on the rotordynamical behavior of turbomachinery is a topic that is of some concern to designers and analysts of such equipment. Research in this area has ... -
Acoustic Design Sensitivity for Structural Radiators
(The American Society of Mechanical Engineers (ASME), 1992)An analysis technique designated as acoustic design sensitivity (ADS) analysis is developed via the numerical treatment of a discrete quadratic expression for the total acoustic power radiated ... -
Rotor Transient Response Induced by Losses in the Rotating Mass
(The American Society of Mechanical Engineers (ASME), 1992)The topic of the paper has been focused on the physical behavior of rotors subjected to losses in the rotating mass and on developing methods for detection of the presence and the extent ... -
Dynamic Deflection of Paper Emerging from a Channel
(The American Society of Mechanical Engineers (ASME), 1992)In many machines handling lightweight, flexible sheets, the sheet must transit an open space. Examples include magnetic tape drives, xerographic copiers, and sewing machines. The nonlinear theory ...