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Component Based Vibration Modeling Methods For Fast Reanalysis And Design Of Complex Structures

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Component Based Vibration Modeling Methods For Fast Reanalysis And Design Of Complex Structures

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Author : Keychun Park
language : en
Publisher:
Release Date : 2008

Component Based Vibration Modeling Methods For Fast Reanalysis And Design Of Complex Structures written by Keychun Park and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with categories.

Random Vibration Analysis System For Complex Structures Part 1 Engineering User S Guide

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Author :
language : en
Publisher:
Release Date : 1968

Random Vibration Analysis System For Complex Structures Part 1 Engineering User S Guide written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1968 with categories.

A user's guide is presented for a computer program developed to aid in the design of sonic-fatigue-resistant aircraft structure. The program employs matrix methods to calculate statistical measurements of response (deflection and stress) for complex structure subjected to pressure loads random in both time and space. The program is in two phases. Finite-element methods are used in the first phase to determine structural characteristics such as flexibility, natural frequencies, and modes of vibration. In the second phase, a cross-power spectral density loading function, is generated and combined with structural characteristics to compute response. Either cross power spectral density or joint statistical moments, including second spectral moments useful in fatigue analysis, can be computed for response. The loading function models a decayed progressive wave typical of laboratory noise sources. Different loading functions can be supplied by the user, because the program is constructed in modular form. The program was written for the IBM 7094 computer primarily in FORTRAN IV language with a MAP language matrix manipulation module.

A Wave Component Approach To The Analysis Of Vibrations In Complex Structures

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Author : Eric C. N. Wester
language : en
Publisher:
Release Date : 2001

A Wave Component Approach To The Analysis Of Vibrations In Complex Structures written by Eric C. N. Wester and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with Sound-waves categories.

Sub Structure Coupling For Dynamic Analysis

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Author : Hector Jensen
language : en
Publisher: Springer
Release Date : 2019-03-26

Sub Structure Coupling For Dynamic Analysis written by Hector Jensen and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-03-26 with Science categories.

This book combines a model reduction technique with an efficient parametrization scheme for the purpose of solving a class of complex and computationally expensive simulation-based problems involving finite element models. These problems, which have a wide range of important applications in several engineering fields, include reliability analysis, structural dynamic simulation, sensitivity analysis, reliability-based design optimization, Bayesian model validation, uncertainty quantification and propagation, etc. The solution of this type of problems requires a large number of dynamic re-analyses. To cope with this difficulty, a model reduction technique known as substructure coupling for dynamic analysis is considered. While the use of reduced order models alleviates part of the computational effort, their repetitive generation during the simulation processes can be computational expensive due to the substantial computational overhead that arises at the substructure level. In this regard, an efficient finite element model parametrization scheme is considered. When the division of the structural model is guided by such a parametrization scheme, the generation of a small number of reduced order models is sufficient to run the large number of dynamic re-analyses. Thus, a drastic reduction in computational effort is achieved without compromising the accuracy of the results. The capabilities of the developed procedures are demonstrated in a number of simulation-based problems involving uncertainty.

Reanalysis Of Structures

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Author : Uri Kirsch
language : en
Publisher: Springer Science & Business Media
Release Date : 2008-02-24

Reanalysis Of Structures written by Uri Kirsch and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-02-24 with Technology & Engineering categories.

This book deals with various computational procedures for multiple repeated analyses (reanalysis) of structures, and presents them in a unified approach. It meets the need for a general text covering the basic concepts and methods as well as recent developments in this area. To clarify the presentation, many illustrative examples and numerical results are demonstrated. Previous books on structural analysis do not cover most of the material presented here.