Journal of Vibration and Acoustics: Recent submissions
Now showing items 2501-2520 of 3913
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Active Control of Structure-Borne Road Noise Using Vibration Actuators
(The American Society of Mechanical Engineers (ASME), 1998)Structure-borne road noise is generated by road induced excitation forces. The control approach presented here relies on the use of vibration actuators to modify the vibration behavior of the ... -
Identifying Critical Elastic Scales in Structural-Acoustic Models
(The American Society of Mechanical Engineers (ASME), 1998)The level of detail required for accurate structural acoustic modeling of fluid loaded structures remains an issue of significant debate. Analytical solutions are rarely available, and discrete ... -
Nonlinear Vibrations of Elastically-Constrained Rotating Disks
(The American Society of Mechanical Engineers (ASME), 1998)An analysis of nonlinear vibrations of an elastically-constrained rotating disk is developed. The equations of motion, which are two coupled nonlinear partial differential equations corresponding ... -
Blades Forced Response Analysis With Friction Dampers
(The American Society of Mechanical Engineers (ASME), 1998)A multiharmonic frequency domain analysis combined with a Craig-Bampton component mode synthesis is presented to compute the dry friction damped forced response of blades. The accuracy of the ... -
Parametric Instability of a Beam Due to Axial Excitations and to Boundary Conditions
(The American Society of Mechanical Engineers (ASME), 1998)In this paper the stability of the lateral dynamic behavior of a pinned-pinned, clamped-pinned and clamped-clamped beam under axial periodic force or torque is studied. The time-varying parameter ... -
Active Reduction of Radiated Noise From a Baffled Piston Using a Volume Velocity, Feedforward Controller
(The American Society of Mechanical Engineers (ASME), 1998)A new active noise-control technique has been developed for control of low-frequency sound generated by vibrating surfaces which is based on minimizing the volume velocity. Noise reduction is ... -
Vibration and Noise Control of the Fuselage via Dynamic Absorbers
(The American Society of Mechanical Engineers (ASME), 1998)A closed, elastic cylindrical shell is used as a simple model of the aircraft’s fuselage. For reducing the vibration of the fuselage and the subsequent interior sound pressure due to the ... -
Calculating the Time-Histories of Impacting Systems Described by Their Receptances
(The American Society of Mechanical Engineers (ASME), 1998)The behavior of impacting systems is highly nonlinear and generally numerical analysis must be resorted to if a quantitative description of the behavior of such systems is required. However, ... -
A Rapidly Convergent Adaptive Controller Applied to Suppression of Random Noise Transmission
(The American Society of Mechanical Engineers (ASME), 1998)In this paper, an efficient rapid convergent control algorithm will be developed and will be compared with other adaptive control algorithms using a plate-cavity system. The plate-cavity system ... -
Identification of Vibration of Cooler Tubes With Tube-to-Baffle Impacts
(The American Society of Mechanical Engineers (ASME), 1998)A random series of impacts method was introduced for vibration test on tube bundles of coolers. A non-normal Poisson process was employed to establish a model for the method. Experimental ... -
Using Residual Flexibility for Improved Observation of Reaction Forces in Flexible Structures
(The American Society of Mechanical Engineers (ASME), 1998)This paper focuses on developing a full-state observer that can be used to obtain unmeasurable reaction forces in a flexible structure. In the context of modal truncation of a distributed ... -
Study of the Oscillations of a Nonlinearly Supported String Using Nonsmooth Transformations
(The American Society of Mechanical Engineers (ASME), 1998)An analytical method for analyzing the oscillations of a linear infinite string supported by a periodic array of nonlinear stiffnesses is developed. The analysis is based on nonsmooth transformations ... -
Predictive Maintenance Using the Rotordynamic Model of a Hydraulic Turbine-Generator Rotor
(The American Society of Mechanical Engineers (ASME), 1998)A use of rotordynamic models in predictive maintenance is described in which variables characterizing the state of a deterioration mechanism are determined from online measurements. These variables ... -
Frequency Window Implementation of Adaptive Multi-Level Substructuring
(The American Society of Mechanical Engineers (ASME), 1998)Adaptive multi-level substructuring (AMLS) is a method for reducing the order of a complex structure’s finite element model by orders of magnitude, while ensuring that the accuracy available ... -
Industrial Noise Source Identification by Using an Acoustic Beamforming System
(The American Society of Mechanical Engineers (ASME), 1998)A noise source identification technique is proposed for industrial applications by using a microphone array and beamforming algorithms. Both of the directions and the distances of long-range noise ... -
Mid-Frequency Range Acoustic Radiation From Slender Elastic Bodies Using the Surface Variational Principle
(The American Society of Mechanical Engineers (ASME), 1998)The surface variational principle (SVP) yields analytical-type results for radiation and scattering from submerged bodies whose shape does not suit classical techniques for analyzing the Helmholtz ... -
In-Plane Vibration Modes of Arbitrarily Thick Disks
(The American Society of Mechanical Engineers (ASME), 1998)The three-dimensional vibration of an arbitrarily thick annular disk is investigated for two classes of boundary conditions: all surfaces traction-free, and all free except for the clamped inner ... -
Identification of ’Effective’ Linear Joints Using Coupling and Joint Identification Techniques
(The American Society of Mechanical Engineers (ASME), 1998)Almost all real-life structures are assembled from components connected by various types of joints. Unlike many other parts, the dynamic properties of a joint are difficult to model analytically. ... -
Edge Buckling of Imperfectly Guided Webs
(The American Society of Mechanical Engineers (ASME), 1998)Web handling is germane to a diverse set of industries, including paper, polymer, textile, and sheet metal processing. Angular misalignment of the guides used to position a web in its transport ... -
Designing for Optimal Energy Absorption, 1: Lumped Parameter Systems
(The American Society of Mechanical Engineers (ASME), 1998)Given a conservative dynamical system we determine where, and in what quantity, dissipative mechanisms should be placed in order to best absorb an initial disturbance. We work in the context ...