Journal of Vibration and Acoustics: Recent submissions
Now showing items 2641-2660 of 3913
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Extension of the Wittrick-Williams Algorithm to Mixed Variable Systems
(The American Society of Mechanical Engineers (ASME), 1997)A precise integration algorithm has recently been proposed by Zhong (1994) for dynamic stiffness matrix computations, but he did not give a corresponding eigenvalue count method. The Wittrick-Williams ... -
Application of Hybrid Frequency Domain Substructuring for Modelling an Automotive Engine Suspension
(The American Society of Mechanical Engineers (ASME), 1997)A practical application of hybrid FRF-coupling (Frequency Response Function) in the development of a passenger car is presented. First, a short review is given about FRF-coupling in general. ... -
Nonlinear Piezothermoelasticity and Multi-Field Actuations, Part 1: Nonlinear Anisotropic Piezothermoelastic Shell Laminates
(The American Society of Mechanical Engineers (ASME), 1997)Nonlinear characteristics, either material or geometrical nonlinearity, and temperature variations can significantly influence the performance and reliability of piezoelectric sensors, actuators, ... -
Prediction of Periodic Response of Rotor Dynamic Systems With Nonlinear Supports
(The American Society of Mechanical Engineers (ASME), 1997)A numerical-analytical method for estimating steady-state periodic behavior of nonlinear rotordynamic systems is presented. Based on a finite element formulation in the time domain, this method ... -
Resonant-Frequency-Distribution of Internal Mass Inferred From Mechanical Impedance Matrices, With Application to Fuzzy Structure Theory
(The American Society of Mechanical Engineers (ASME), 1997)The partitioning of internal mass among bands of resonant frequencies is addressed for a prototype internal vibrating structure with small damping, attached via an arbitrary number NA of attachment ... -
Identification of Principal Rigid Body Modes Under Free-Free Boundary Condition
(The American Society of Mechanical Engineers (ASME), 1997)This paper focuses on the problem of identifying all individual principal rigid body modes and the associated mass or principal inertia of moment, which can be called modal mass, of flexible ... -
Nonlinear Fluid-Structure Interaction in Propeller Aircraft Cabins
(The American Society of Mechanical Engineers (ASME), 1997)A procedure for studying the acoustic superharmonic response in propeller aircraft cabins subject to stationary single frequency load excitation is proposed. The harmonic balance method is used ... -
Optimal Design of Active Suspensions Using Damping Control
(The American Society of Mechanical Engineers (ASME), 1997)This paper studies the effect of optimal damping control suspensions on vehicle ride performance. The gain matrix is developed from second-order equations with the road roughness represented by ... -
Time Domain Simulation of Jack-up Dynamics With the Extremes of a Gaussian Process
(The American Society of Mechanical Engineers (ASME), 1997)Random simulations are often used to simulate the statistics of storm-driven waves. Work on Gaussian linear random signals has lead to a method for embedding a large wave into a random sequence ... -
The Energetics of Winched Strings
(The American Society of Mechanical Engineers (ASME), 1997) -
Free Vibration of Buckled Laminated Plates by Finite Element Method
(The American Society of Mechanical Engineers (ASME), 1997)Free vibration behavior of buckled composite plates are studied by using a high precision triangular plate element. This element is developed based on a simplified high order plate theory and ... -
Rotational Compliance Measurements of a Flexible Plane Structure Using an Attached Beam-like Tip, Part 2: Experimental Study
(The American Society of Mechanical Engineers (ASME), 1997)This paper presents an experimental assessment of the Tip Excitation Technique (TET) introduced in a companion paper. The aim of the technique is to measure the rotational compliance of attached ... -
Precession of Vibrational Modes of a Rotating Hemispherical Shell
(The American Society of Mechanical Engineers (ASME), 1997)The precession of flexural vibrational modes of a rotating hemispherical thin shell is investigated. Niordson’s thin shell theory, which allows the stretch of the middle surface, is employed to ... -
A Computationally Efficient Objective Function for the Evaluation of the Natural Frequency in Structural Modification and Optimization Problems
(The American Society of Mechanical Engineers (ASME), 1997)A highly computationally efficient objective function for measuring the change in the natural frequency when a structure is modified is introduced. When the optimization of an orthotropic plate ... -
Rotational Compliance Measurements of a Flexible Plane Structure Using an Attached Beam-like Tip, Part 1: Analysis and Numerical Simulation
(The American Society of Mechanical Engineers (ASME), 1997)The present paper describes a simple, indirect technique for measuring the rotational compliance of an attached thin-walled plane structure. The technique, called “Tip Excitation Technique (TET),” ... -
An Experimental Investigation of the Behavior of Droplets in Axial Acoustic Fields
(The American Society of Mechanical Engineers (ASME), 1997)This paper describes an experimental investigation of the behavior of water droplets in axial acoustic fields. It was motivated by the increasing interest in the use of pulsations to improve ... -
Effects of Shear Deformation and Rotary Inertia on the Free Vibration of a Rotating Annular Plate
(The American Society of Mechanical Engineers (ASME), 1997)This Tech Brief addresses the effects of shear deformation and rotary inertia on the free vibration of a rotating annular plate. Several studies have been done to understand these effects (Irie ... -
Putting Statistics into the Statistical Energy Analysis of Automotive Vehicles
(The American Society of Mechanical Engineers (ASME), 1997)Sound and vibration transmission modeling methods are important to the design process for high quality automotive vehicles. Statistical Energy Analysis (SEA) is an emerging design tool for the ... -
The Use of Wave-Absorbing Elements for the Evaluation of Transmission Characteristics of Beam Junctions
(The American Society of Mechanical Engineers (ASME), 1997)The following paper addresses the applicability and the advantages of finite elements for the study of transmission and reflection of waves impinging upon beam junctions. It will be shown that ... -
A Subharmonic Vibration Absorber for Rotating Machinery
(The American Society of Mechanical Engineers (ASME), 1997)We demonstrate a dynamic vibration absorber system which can be used to reduce speed fluctuations in rotating machinery. The primary system is modeled as a simple rotating disk, and the idealized ...