Design Sensitivity Analysis of Structural Systems

Design Sensitivity Analysis of Structural Systems PDF Author: Vadim Komkov
Publisher: Academic Press
ISBN: 0080960006
Category : Technology & Engineering
Languages : en
Pages : 399

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Book Description
The book is organized into four chapters. The first three treat distinct types of design variables, and the fourth presents a built-up structure formulation that combines the other three. The first chapter treats finite-dimensional problems, in which the state variable is a finite-dimensional vector of structure displacements and the design parameters. The structual state equations are matrix equations for static response, vibration, and buckling of structures and matrix differential equations for transient dynamic response of structures, which design variables appearing in the coefficient matrices.

Finite Element Computation of Structural Design Sensitivity Analysis

Finite Element Computation of Structural Design Sensitivity Analysis PDF Author: Ren-Jye Yang
Publisher:
ISBN:
Category : Finite element method
Languages : en
Pages : 402

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Book Description


Design Sensitivity Analysis of Structural Systems

Design Sensitivity Analysis of Structural Systems PDF Author: Vadim Komkov
Publisher: Academic Press
ISBN: 0080960006
Category : Technology & Engineering
Languages : en
Pages : 399

Get Book Here

Book Description
The book is organized into four chapters. The first three treat distinct types of design variables, and the fourth presents a built-up structure formulation that combines the other three. The first chapter treats finite-dimensional problems, in which the state variable is a finite-dimensional vector of structure displacements and the design parameters. The structual state equations are matrix equations for static response, vibration, and buckling of structures and matrix differential equations for transient dynamic response of structures, which design variables appearing in the coefficient matrices.

Shape Design Sensitivity Analysis and Optimization Using the Boundary Element Method

Shape Design Sensitivity Analysis and Optimization Using the Boundary Element Method PDF Author: Zhiye Zhao
Publisher: Springer Science & Business Media
ISBN: 3642843824
Category : Technology & Engineering
Languages : en
Pages : 203

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Book Description
This book investigates the various aspects of shape optimization of two dimensional continuum structures, including shape design sensitivity analysis, structural analysis using the boundary element method (BEM), and shape optimization implementation. The book begins by reviewing the developments of shape optimization, followed by the presentation of the mathematical programming methods for solving optimization problems. The basic theory of the BEM is presented which will be employed later on as the numerical tool to provide the structural responses and the shape design sensitivities. The key issue of shape optimization, the shape design sensitivity analy sis, is fully investigated. A general formulation of stress sensitivity using the continuum approach is presented. The difficulty of the modelling of the ad joint problem is studied, and two approaches are presented for the modelling of the adjoint problem. The first approach uses distributed loads to smooth the concentrated adjoint loads, and the second approach employs the singu larity subtraction method to remove the singular boundary displacements and tractions from the BEM equation. A novel finite difference based approach to shape design sensitivity is pre sented, which overcomes the two drawbacks of the conventional finite difference method. This approach has the advantage of being simple in concept, and eas ier implementation. A shape optimization program for two-dimensional continuum structures is developed, including structural analysis using the BEM, shape design sensitiv ity analysis, mathematical programming, and the design boundary modelling.

Structural Sensitivity Analysis and Optimization 1

Structural Sensitivity Analysis and Optimization 1 PDF Author: Kyung K. Choi
Publisher: Springer Science & Business Media
ISBN: 0387271694
Category : Science
Languages : en
Pages : 457

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Book Description
Extensive numerical methods for computing design sensitivity are included in the text for practical application and software development. The numerical method allows integration of CAD-FEA-DSA software tools, so that design optimization can be carried out using CAD geometric models instead of FEA models. This capability allows integration of CAD-CAE-CAM so that optimized designs can be manufactured effectively.

The Optimum Shape

The Optimum Shape PDF Author: James Bennett
Publisher: Springer Science & Business Media
ISBN: 1461594839
Category : Technology & Engineering
Languages : en
Pages : 404

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Book Description
This book contains the papers presented at the International Symposium, "The Optimum Shape: Automated Structural Design," held at the General Motors Research Laboratories on September 3D-October 1, 1985. This was the 30th symposium in a series which the Research Laboratories began sponsoring in 1957. Each symposium has focused on a topic that is both under active study at the Research Laboratories and is also of interest to the larger technical community. While attempts to produce a structure which performs a certain task with the minimum amount of resources probably predates recorded civilization, the idea of coupling formal optimization techniques with computer-based structural analysis techniques was first proposed in the early 1960s. Although it was recognized at this time that the most fundamental description of the problem would be in terms of the shape or contours of the structure, much of the early work described the problem in terms of structural sizing parameters instead of geometrical descriptions. Within the past few years, several research groups have started to explore this more fundamental area of shape design. Initial research has raised many new questions about appropriate selection of design variables, methods of calculating derivatives, and generation of the underlying analysis problem.

Structural Sensitivity Analysis and Optimization 2

Structural Sensitivity Analysis and Optimization 2 PDF Author: K. K. Choi
Publisher: Springer Science & Business Media
ISBN: 0387273069
Category : Science
Languages : en
Pages : 336

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Book Description
Extensive numerical methods for computing design sensitivity are included in the text for practical application and software development. The numerical method allows integration of CAD-FEA-DSA software tools, so that design optimization can be carried out using CAD geometric models instead of FEA models. This capability allows integration of CAD-CAE-CAM so that optimized designs can be manufactured effectively.

Parameter Sensitivity in Nonlinear Mechanics

Parameter Sensitivity in Nonlinear Mechanics PDF Author: Michael Kleiber
Publisher:
ISBN:
Category : Mathematics
Languages : en
Pages : 432

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Book Description
There are various methods for the analysis and design of bodies subject to static and dynamic loadings in structural and solid mechanics. Sensitivity analysis is concerned with the relationship between parameters, describing the structure under consideration and the function describing the response of that structure under loading conditions. This book addresses the finite element computational techniques typical of sensitivity analysis for solid mechanics systems with any nonlinearity. It is an attempt to combine theoretical modelling techniques with effective computer implementation: besides the theory many suitable finite element codes have been developed by the authors and used for computing examples discussed in the text.

Design Sensitivity Analysis of Finite Element Discretized Structures

Design Sensitivity Analysis of Finite Element Discretized Structures PDF Author: Erik Lund
Publisher:
ISBN:
Category :
Languages : da
Pages : 31

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Book Description


Implementation of Structural Response Sensitivity Calculations in a Large-scale Finite-element Analysis System

Implementation of Structural Response Sensitivity Calculations in a Large-scale Finite-element Analysis System PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 18

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Book Description


Structural Analysis with Finite Elements

Structural Analysis with Finite Elements PDF Author: Friedel Hartmann
Publisher: Springer Science & Business Media
ISBN: 366205423X
Category : Science
Languages : en
Pages : 492

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Book Description
This book provides a solid introduction to the foundation and the application of the finite element method in structural analysis. It offers new theoretical insight and practical advice. This second edition contains additional sections on sensitivity analysis, on retrofitting structures, on the Generalized FEM (X-FEM) and on model adaptivity. An additional chapter treats the boundary element method, and related software is available at www.winfem.de.