Author: Weiguo ZhangPublisher:
ISBN:
Category :
Languages : en
Pages : 286
Book Description
Energy Finite Element Method for Vibration Analysis of Stiffened Plated Under Fluid Loading
Author: Weiguo ZhangEnergy Finite Element Analysis for Computing the High Frequency Vibration of the Aluminum Testbed Cylinder and Correlating the Results to Test Data
Author: National Aeronautics and Space Administration (NASA)Publisher: Createspace Independent Publishing Platform
ISBN: 9781721782321
Category :
Languages : en
Pages : 34
Book Description
The Energy Finite Element Analysis (EFEA) is a finite element based computational method for high frequency vibration and acoustic analysis. The EFEA solves with finite elements governing differential equations for energy variables. These equations are developed from wave equations. Recently, an EFEA method for computing high frequency vibration of structures either in vacuum or in contact with a dense fluid has been presented. The presence of fluid loading has been considered through added mass and radiation damping. The EFEA developments were validated by comparing EFEA results to solutions obtained by very dense conventional finite element models and solutions from classical techniques such as statistical energy analysis (SEA) and the modal decomposition method for bodies of revolution. EFEA results have also been compared favorably with test data for the vibration and the radiated noise generated by a large scale submersible vehicle. The primary variable in EFEA is defined as the time averaged over a period and space averaged over a wavelength energy density. A joint matrix computed from the power transmission coefficients is utilized for coupling the energy density variables across any discontinuities, such as change of plate thickness, plate/stiffener junctions etc. When considering the high frequency vibration of a periodically stiffened plate or cylinder, the flexural wavelength is smaller than the interval length between two periodic stiffeners, therefore the stiffener stiffness can not be smeared by computing an equivalent rigidity for the plate or cylinder. The periodic stiffeners must be regarded as coupling components between periodic units. In this paper, Periodic Structure (PS) theory is utilized for computing the coupling joint matrix and for accounting for the periodicity characteristics. Vlahopoulos, Nickolas Langley Research Center NASA/CR-2005-213760
Introduction to Finite Element Vibration Analysis
Author: Maurice PetytPublisher: Cambridge University Press
ISBN: 9780521634175
Category : Mathematics
Languages : en
Pages : 584
Book Description
First time paperback of successful mechanical engineering book suitable as a textbook for graduate students in mechanical engineering.
Scientific and Technical Aerospace Reports
Author: The Shock and Vibration Digest
Author: Introduction to Finite Element Vibration Analysis
Author: M. PetytPublisher:
ISBN:
Category : Finite element method
Languages : en
Pages : 558
Book Description
Applied mechanics reviews
Author: Developments and Novel Approaches in Nonlinear Solid Body Mechanics
Author: Bilen Emek AbaliPublisher: Springer
ISBN: 9783030504595
Category : Science
Languages : en
Pages : 493
Book Description
This book features selected manuscripts presented at ICoNSoM 2019, exploring cutting-edge methods for developing novel models in nonlinear solid mechanics. Innovative methods like additive manufacturing—for example, 3D printing— and miniaturization mean that engineers need more accurate techniques for modeling solid body mechanics. The book focuses on the formulation of continuum and discrete models for complex materials and systems, particularly the design of metamaterials.
Physics briefs
Author: Finite Element Bibliography
Author: Gerard De VriesPublisher: Springer
ISBN:
Category : Reference
Languages : en
Pages : 706
Book Description
Thjs bibliography had its inception in 1967, when the compilers first attempted a comprehensive cov erage of the finite element literature using both manual and computer-based retrieval. Initially, the data base was stored on a card index, but this was subsequently transferred to punched cards and magnetic tape. Computer processing was adopted at an early stage to derive the three index formats from the data base. Over the subsequent years, several versions of the bibliography were produced, with two of these being made available in a report form to other researchers. From the widespread interest in these documents, it became evident that there was a need for a commercially-available comprehensive bibliography in this area. A major effort was undertaken to revise, update, and extend the data base, resulting in this present volume. The bibliography covers the period 1956-1975 primarily, although some earlier publications of histori cal interest are included. The citations are not restricted to the English language and documents are listed in many languages and from diverse places of origin. All publication formats were accepted, so that references will be found to books, monographs, journal papers and articles, theses, dissertations, reports, surveys, and the like.