NASTRAN Users' Colloquium

NASTRAN Users' Colloquium PDF Author:
Publisher:
ISBN:
Category : NASTRAN
Languages : en
Pages : 346

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NASTRAN Users' Colloquium

NASTRAN Users' Colloquium PDF Author:
Publisher:
ISBN:
Category : NASTRAN
Languages : en
Pages : 346

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Book Description


Fifteenth NASTRAN Users' Colloquium

Fifteenth NASTRAN Users' Colloquium PDF Author:
Publisher:
ISBN:
Category : Finite element method
Languages : en
Pages : 320

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Sixteenth NASTRAN Users' Colloquium

Sixteenth NASTRAN Users' Colloquium PDF Author:
Publisher:
ISBN:
Category : Finite element method
Languages : en
Pages : 200

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Solution of Superlarge Problems in Computational Mechanics

Solution of Superlarge Problems in Computational Mechanics PDF Author: James H. Kane
Publisher: Springer Science & Business Media
ISBN: 1461305357
Category : Technology & Engineering
Languages : en
Pages : 300

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Book Description
There is a need to solve problems in solid and fluid mechanics that currently exceed the resources of current and foreseeable supercomputers. The issue revolves around the number of degrees of freedom of simultaneous equations that one needs to accurately describe the problem, and the computer storage and speed limitations which prohibit such solutions. The goals of tHis symposium were to explore some of the latest work being done in both industry and academia to solve such extremely large problems, and to provide a forum for the discussion and prognostication of necessary future direc tions of both man and machine. As evidenced in this proceedings we believe these goals were met. Contained in this volume are discussions of: iterative solvers, and their application to a variety of problems, e.g. structures, fluid dynamics, and structural acoustics; iterative dynamic substructuring and its use in structural acoustics; the use of the boundary element method both alone and in conjunction with the finite element method; the application of finite difference methods to problems of incompressible, turbulent flow; and algorithms amenable to concurrent computations and their applications. Furthermore, discussions of existing computational shortcomings from the big picture point of view are presented that include recommendations for future work.

NASA's Contributions to Aeronautics

NASA's Contributions to Aeronautics PDF Author:
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ISBN:
Category : Aeronautics
Languages : en
Pages : 980

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NASA's Contributions to Aeronautics: Aerodynamics, structures, propulsion, controls

NASA's Contributions to Aeronautics: Aerodynamics, structures, propulsion, controls PDF Author:
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ISBN:
Category : Aeronautics
Languages : en
Pages : 980

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Book Description
Two-volume collection of case studies on aspects of NACA-NASA research by noted engineers, airmen, historians, museum curators, journalists, and independent scholars. Explores various aspects of how NACA-NASA research took aeronautics from the subsonic to the hypersonic era.-publisher description.

NASA Scientific and Technical Publications

NASA Scientific and Technical Publications PDF Author:
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ISBN:
Category : Aeronautics
Languages : en
Pages : 188

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Scientific and Technical Aerospace Reports

Scientific and Technical Aerospace Reports PDF Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 604

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Acoustic Interactions With Submerged Elastic Structures - Part Ii: Propagation, Ocean Acoustics And Scattering

Acoustic Interactions With Submerged Elastic Structures - Part Ii: Propagation, Ocean Acoustics And Scattering PDF Author: Juri Engelbrecht
Publisher: World Scientific
ISBN: 9814497827
Category : Science
Languages : en
Pages : 389

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Book Description
The interaction of acoustic fields with submerged elastic structures, both by propagation and scattering, is being investigated at various institutions and laboratories world-wide with ever-increasing sophistication of experiments and analysis. This book offers a collection of contributions from these research centers that represent the present state-of-the-art in the study of acoustic elastic interaction, being on the cutting edge of these investigations. This includes the description of acoustic scattering from submerged elastic objects and shells by the Resonance Scattering Theory of Flax, Dragonette and Überall, and the interaction of these phenomena in terms of interface waves. It also includes the use of this theory for the purpose of inverse scattering, i.e. the determination of the scattered objects properties from the received acoustic backscattered signals. The problem of acoustically excited waves in inhomogeneous and anisotropic materials, and of inhomogeneous propagating waves is considered. Vibrations and resonances of elastic shells, including shells with various kinds of internal attachments, are analyzed. Acoustic scattering experiments are described in the time domain, and on the basis of the Wigner-Ville distribution. Acoustic propagation in the water column over elastic boundaries is studied experimentally both in laboratory tanks, and in the field, and is analyzed theoretically. Ultrasonic nondestructive testing, including such aspects like probe modelling, scattering by various types of cracks, receiving probes and calibration by a side-drilled hole is also studied in details.A comprehensive picture of these complex phenomena and other aspects is presented in the book by researchers that are experts in each of these domains, giving up-to-date accounts of the field in all these aspects.

Review of Progress in Quantitative Nondestructive Evaluation

Review of Progress in Quantitative Nondestructive Evaluation PDF Author: Donald O. Thompson
Publisher: Springer Science & Business Media
ISBN: 1468457721
Category : Technology & Engineering
Languages : en
Pages : 2101

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Book Description
This volume (Parts A and B) contains the edited papers presented at the annual Review of Progress in Quantitative Nondestructive Evaluation held at Bowdoin College, Brunswick, ME on July 24-28, 1989. The Review was organized by the Center for Advanced NDE at the Ames Laboratory of the U. S. Department of Energy, in cooperation with the Office of Basic Energy Sciences, USDOE, and the Materials Laboratory at Wright-Patterson Air Force Base. The statistics for the 1989 Review of Progress in QNDE include a total of over 460 participants from the U. S. and nine foreign countries who presented some 325 papers. Over the years this conference has grown into one of the largest, most significant gatherings of NDE researchers and engineers in the world. The meeting was divided into 35 sessions, with as many as four sessions running concurrently, and covering all stages of NDE development from basic research investigations to early engineering applications and all methods of inspection science from ultrasonics to x-ray tomography. The Editors have organized the papers in the Proceedings according to topical subject headings, rather than in the original order of presentation. This rearrangement yields a more user-friendly reference work and follows a pattern now familiar to regular attendees of the Review. Some changes in the headings and their subcategories have been introduced to accommodate dynamic evolution of the field, as we observe it.