Journal of Vibration and Acoustics: Recent submissions
Now showing items 3161-3180 of 3913
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Modal Analysis of Multiple Eigenvalue Systems by Data Dependent Systems
(The American Society of Mechanical Engineers (ASME), 1991)This note outlines an extension of the Data Dependent Systems (DDS) methodology to the modal analysis of vibratory systems with eigenvalues of arbitrary multiplicity. DDS [1, 2] is a time-series ... -
Linear Waves in Bubbly Liquids via the Kramers-Kronig Relations
(The American Society of Mechanical Engineers (ASME), 1991)A simple closed form analytic solution, as well as numerical solutions, are derived for acoustic waves of an arbitrary frequency, propagating in dilute bubbly liquids. The applied method treats ... -
A Multi-Point Force Appropriation Method Based Upon a Singular Value Decomposition Approach
(The American Society of Mechanical Engineers (ASME), 1991)Force appropriation methods aim to provide an estimate for the force pattern required to excite a “pure” normal mode in a vibration test where multiple exciters are available. In this paper, ... -
A Note on Pole Placement of Mechanical Systems
(The American Society of Mechanical Engineers (ASME), 1991)An output feedback method is developed, that systematically places a desired number of poles of a closed-loop system at or near desired locations. The system is transformed to its equivalent ... -
A Set of Orthogonal Plate Functions for Flexural Vibration of Regular Polygonal Plates
(The American Society of Mechanical Engineers (ASME), 1991)A computationally efficient and very accurate numerical method is proposed for vibration analysis of regular polygonal plates with any combinations of clamped, simply-supported and free boundary ... -
Nonlinear Behavior of a Rotorcraft Model During Air Resonance
(The American Society of Mechanical Engineers (ASME), 1991)The term “air resonance” refers to an instability associated with helicopters in hover. It is characterized by a coupling between motions of the fuselage and the blades and is of primary ... -
Axisymmetric Free Vibration of Thick Orthotropic Hemispherical Shells Under Various Edge Conditions
(The American Society of Mechanical Engineers (ASME), 1991)Axisymmetric free vibration of moderately thick polar orthotropic hemispherical shells are studied under the various boundary conditions with sliding, guided pin, clamped, and hinged edges. Based ... -
Active Control for Vibration Suppression in a Flexible Beam Using a Modal Domain Optical Fiber Sensor
(The American Society of Mechanical Engineers (ASME), 1991)In this paper we discuss the use of a modal domain optical fiber sensor (MD sensor) as a component in an active control system to suppress vibrations in a flexible beam. An MD sensor ... -
Viscoelastic Circular Plate Wave Guide Absorber
(The American Society of Mechanical Engineers (ASME), 1991)A waveguide absorber removes and dissipates vibrational energy from a structure by traveling waves. The performance of a wave guide absorber is determined by the driving point impedance. In ... -
A Boundary Element Approach to Optimization of Active Noise Control Sources on Three-Dimensional Structures
(The American Society of Mechanical Engineers (ASME), 1991)This paper presents the theoretical development of an approach to active noise control (ANC) applicable to three-dimensional radiators. The active noise control technique, termed ANC Optimization ... -
A Global Simulation Model for Hermetic Reciprocating Compressors
(The American Society of Mechanical Engineers (ASME), 1991)This article presents a simulation model for reciprocating hermetic compressors. The acoustical behavior of both admission and discharge circuits is analyzed by invoking the discrete element model. ... -
An Acoustic Variational Principle and Component Mode Synthesis Applied to the Analysis of Acoustic Radiation from a Concentrically Stiffened Plate
(The American Society of Mechanical Engineers (ASME), 1991)This study concerns the effects of circumferential ring stiffeners on the vibration and acoustic radiation of a submerged circular elastic plate supported by an infinite rigid baffle. The analysis ... -
Recursive Identification of Vibrating Structures from Noise-Corrupted Observations, Part 1: Identification Approaches
(The American Society of Mechanical Engineers (ASME), 1991)In this paper the problem of recursive structural dynamics identification from noise-corrupted observations is addressed, and approaches that overcome the weaknesses of current methods, stemming ... -
A Contribution to Doubly Asymptotic Approximations: An Operator Top-Down Derivation
(The American Society of Mechanical Engineers (ASME), 1991)As a contribution to the theory of Doubly Asymptotic Approximations (DAAs), a formal operator top-down derivation specialized to steady-state motions is proposed for the Neumann exterior problem ... -
Recursive Identification of Vibrating Structures from Noise-Corrupted Observations, Part 2: Performance Evaluation via Numerical and Laboratory Experiments
(The American Society of Mechanical Engineers (ASME), 1991)In the first part of this paper (Ben Mrad and Fassois, 1991), the problem of recursive structural dynamics identification from noise-corrupted observations was examined, and six approaches that ... -
Finite Element Large-Amplitude Free and Forced Vibrations of Rectangular Thin Composite Plates
(The American Society of Mechanical Engineers (ASME), 1991)A finite element formulation is presented for determining the large-amplitude free and steady-state forced vibration responses of arbitrarily laminated anisotropic composite rectangular thin plates. ... -
Stability and Instability of a Two-Mode Rotor Supported by Two Fluid-Lubricated Bearings
(The American Society of Mechanical Engineers (ASME), 1991)This paper is a continuation of the series of papers on application of the improved fluid force model for lightly loaded shafts rotating in a fluid environment. The fluid force model is based ... -
A Hybrid Approach to Test-Analysis-Model Development for Large Space Structures
(The American Society of Mechanical Engineers (ASME), 1991)A new finite element model (FEM) reduction method is presented for use in the generation of Test-Analysis-Models (TAM) in test-analysis correlation. The method addresses the concern that some ... -
Effects of Gear Box Vibration and Mass Imbalance on the Dynamics of Multistage Gear Transmission
(The American Society of Mechanical Engineers (ASME), 1991)The objective of this paper is to present a comprehensive approach to analyze the dynamic behavior of multi-stage gear transmission systems with the effects of gear box induced vibrations and ... -
Vibration Suppression Using a Constrained Rate-Feedback-Threshold Control Strategy
(The American Society of Mechanical Engineers (ASME), 1991)A finite time, minimum force rate-feedback-threshold controller is developed to bring a system with or without known external disturbances back into an “allowable” state bound in finite time. ...