Shape And Layout Optimization Of Structural Systems And Optimality Criteria Methods

Author : G.I.N. Rozvany
Publisher : Springer
Page : 493 pages
File Size : 40,7 Mb
Release : 2014-05-04
Category : Technology & Engineering
ISBN : 9783709127889

Get Book

Shape and Layout Optimization of Structural Systems and Optimality Criteria Methods by G.I.N. Rozvany Pdf

Shape and layout optimization represent some of the most useful but also most difficult classes of problems in structural design, which have been investigated in detail only during the last few years. Shape optimization is concerned with the optimal shape of boundaries of continua or of interfaces between two materials in composites. Layout optimization deals with the simultaneous optimization of the topology, geometry and cross-sectional sizes of structural systems. In spite of its complextiy, layout optimization is a very rewarding task, because it results in much greater savings than the optimization of cross-sectional sizes only. Because of their important role in shape and layout optimization, the book also covers in detail new optimality criteria methods, which are capable of handling many thousand design variables and active design contraints. Shape and layout optimization is becoming an indispensable tool in the design of aeroplanes, space structures, cars, ships, building and civil engineering structures, power stations, chemical plants, artificial organs, sporting equipment, and all other solid systems where stresses and deformations play an important role.

Author : G. I. N. Rozvany
Publisher : Unknown
Page : 508 pages
File Size : 44,8 Mb
Release : 2014-09-01
Category : Electronic
ISBN : 3709127890

Get Book

Shape and Layout Optimization of Structural Systems and Optimality Criteria Methods by G. I. N. Rozvany Pdf

Author : G. I. N. Rozvany
Publisher : Springer Science & Business Media
Page : 594 pages
File Size : 45,9 Mb
Release : 1993
Category : Science
ISBN : 0792321294

Get Book

Optimization of Large Structural Systems by G. I. N. Rozvany Pdf

This is the second of two volumes which examine structural optimization of large structural systems. Topics covered in these volumes include optimality criteria and topology optimization, decomposition methods and approximation concepts, neural networks and parallel processing.

Author : Martin P. Bendsoe
Publisher : Springer Science & Business Media
Page : 278 pages
File Size : 48,5 Mb
Release : 2013-03-14
Category : Technology & Engineering
ISBN : 9783662031155

Get Book

Optimization of Structural Topology, Shape, and Material by Martin P. Bendsoe Pdf

In the past, the possibilities of structural optimization were restricted to an optimal choice of profiles and shape. Further improvement can be obtained by selecting appropriate advanced materials and by optimizing the topology, i.e. finding the best position and arrangement of structural elements within a construction. The optimization of structural topology permits the use of optimization algorithms at a very early stage of the design process. The method presented in this book has been developed by Martin Bendsoe in cooperation with other researchers and can be considered as one of the most effective approaches to the optimization of layout and material design.

Author : George I. N. Rozvany
Publisher : Springer Science & Business Media
Page : 488 pages
File Size : 41,6 Mb
Release : 2012-12-06
Category : Technology & Engineering
ISBN : 9789400911611

Get Book

Structural Design via Optimality Criteria by George I. N. Rozvany Pdf

"During the last two decades, research on structural optimization became increasingly concerned with two aspects: the application of general numeri cal methods of optimization to structural design of complex real structures, and the analytical derivation of necessary and sufficient conditions for the optimality of broad classes of comparatively simple and more or less ideal ized structures. Both kinds of research are important: the first for obvious reasons; the second, because it furnishes information that is useful in testing the validity, accuracy and convergence of numerical methods and in assess ing the efficiency of practical designs. {raquo} (Prager and Rozvany, 1977a) The unexpected death of William Prager in March 1980 marked, in a sense, the end of an era in structural mechanics, but his legacy of ideas will re main a source of inspiration for generations of researchers to come. Since his nominal retirement in the early seventies, Professor and Mrs. Prager lived in Savognin, an isolated alpine village and ski resort surrounded by some of Switzerland's highest mountains. It was there that the author's close as sociation with Prager developed through annual pilgrimages from Australia and lengthy discussions which pivoted on Prager's favourite topic of struc tural optimization. These exchanges took place in the picturesque setting of Graubunden, on the terrace of an alpine restaurant overlooking snow-capped peaks, on ski-lifts or mountain walks, or during evening meals in the cosy hotels of Savognin, Parsonz and Riom.

Author : Anonim
Publisher : Unknown
Page : 892 pages
File Size : 48,5 Mb
Release : 1977
Category : Mechanics, Applied
ISBN : UIUC:30112008993179

Get Book

Applied Mechanics Reviews by Anonim Pdf

Author : M. Save,W. Prager
Publisher : Springer Science & Business Media
Page : 340 pages
File Size : 55,5 Mb
Release : 2013-03-08
Category : Mathematics
ISBN : 9781461579212

Get Book

Structural Optimization by M. Save,W. Prager Pdf

After the IUTAM Symposium on Optimization in Structural Design held in Warsaw in 1973, it was clear to me that the time had come for organizing into a consistent body of thought the enormous quantity of results obtained in this domain, studied from so many different points of view, with so many different methods, and at so many levels of practical applicability. My colleague and friend Gianantonnio Sacchi from Milan and I met with Professor Prager in Savognin in July 1974, where I submitted to them my first ideas for a treatise on structural optimization: It should cover the whole domain from basic theory to practical applications, and deal with various materials, various types of structures, various functions required of the structures, and various types of cost . . Obviously, this was to be a team effort, to total three or four volumes, to be written in a balanced manner as textbooks and handbooks. Nothing similar existed at that time, and, indeed, nothing has been published to date. Professor Prager was immedi ately in favor of such a project. He agreed to write a first part on optimality criteria with me and to help me in the general organization of the series. Since Professor Sacchi was willing to write the text on variational methods, it remained to find authors for parts on the mathematical programming approach to structural optimization (and, more generally, on numerical methods) and on practical optimal design procedures in metal and concrete.

Author : Hans A. Eschenauer,Claus Mattheck,Niels Olhoff
Publisher : Springer Science & Business Media
Page : 358 pages
File Size : 46,8 Mb
Release : 2012-12-06
Category : Technology & Engineering
ISBN : 9783642843976

Get Book

Engineering Optimization in Design Processes by Hans A. Eschenauer,Claus Mattheck,Niels Olhoff Pdf

These proceedings contain the texts of 37 contributions presented at the International Conference on Engineering Optimization in an Industrial Environment, which took place on 3 - 4 September 1990 at the Karlsruhe Nuclear Hesearch Center, I~H Germany. The presentations consisted of oral and poster contributions arranged in five sessions: • Shape and layout optimization • Structural optimization with advanced materials • Optimal designs with special structural and material beha viour • Sensitivity analysis - Programme systems • Optimization with stability constraints - Special problems The editors wish to express their appreciation to all authors and invited speakers for their in teresting contributions. The proceedings cover a wide range of topics in structural optimization representing the present state of the art in the fields of research and in the industrial environment as well. The editors hope that this book will also contribute towards new ideas and concepts in a world of ever decreasing natural resources and ever increasing demands for lighter and yet stronger and safer technical components. I"inally, the editors wish to thank all colleagues who helped in the organisation of the conference, especially Mrs. E. Schroder anq Dr. K.llethge, as well as Mr. A. von lIagen and Mrs. E. Haufelder, Springer Publishing Company, Heidelberg for the good cooperation and help in the publication of these proceedings.

Author : Scott A. Burns
Publisher : ASCE Publications
Page : 396 pages
File Size : 50,6 Mb
Release : 2002-01-01
Category : Technology & Engineering
ISBN : 0784475245

Get Book

Recent Advances in Optimal Structural Design by Scott A. Burns Pdf

Sponsored by the Technical Committee on Structural Design of the Technical Administrative Committee on Analysis and Computation of the Technical Activities Division of the Structural Engineering Institute of ASCE. This report documents the dramatic new developments in the field of structural optimization over the last two decades. Changes in both computational techniques and applications can be seen by developments in computational methods and solution algorithms, the role of optimization during the various stages of structural design, and the stochastic nature of design in relation to structural optimization. Topics include: Ømethods for discrete variable structural optimization; Ødecomposition methods in structural optimization; Østate of the art on the use of genetic algorithms in design of steel structures; Øconceptual design optimization of engineering structures; Øtopology and geometry optimization of trusses and frames; Øevolutionary structural optimization; Ødesign and optimization of semi-rigid framed structures; Øoptimized performance-based design for buildings; Ømulti-objective optimum design of seismic-resistant structures; and Øreliability- and cost-oriented optimal bridge maintenance planning. The book concludes with an extensive bibliography of journal papers on structural optimization published between 1987 and 1999.

Author : Santiago Hernández,C. A. Brebbia
Publisher : Computational Mechanics
Page : 700 pages
File Size : 52,7 Mb
Release : 1991
Category : Computers
ISBN : UOM:39015024980016

Get Book

Optimization of Structural Systems and Industrial Applications by Santiago Hernández,C. A. Brebbia Pdf

Author : P. Pedersen
Publisher : Elsevier
Page : 528 pages
File Size : 45,9 Mb
Release : 2012-12-02
Category : Technology & Engineering
ISBN : 9780444600301

Get Book

Optimal Design with Advanced Materials by P. Pedersen Pdf

Optimal design with advanced materials is becoming a very progressive and challenging domain within applied mechanics. The increasing use of advanced materials, such as anisotropic fiber composites and ceramics, is instigating new developments to be made within constitutive modelling and the computational methods of analysis, sensitivity analysis and optimization. A new dimension of optimal design is being realised by the direct tailoring and building of new materials. Research in this area is accelerating rapidly with the results already being applied to high technology industries. Two vital high technology research areas covered in this volume include homogenization and smart materials/structures. The 31 papers will prove an indispensable reference source for all those involved in the interdisciplinary research and development aspects of mechanics, materials and mathematics in the design of advanced materials.

Author : H. Adeli
Publisher : CRC Press
Page : 590 pages
File Size : 41,8 Mb
Release : 2002-09-11
Category : Architecture
ISBN : 9780203038642

Get Book

Advances in Design Optimization by H. Adeli Pdf

This book summarizes advances in a number of fundamental areas of optimization with application in engineering design. The selection of the 'best' or 'optimum' design has long been a major concern of designers and in recent years interest has grown in applying mathematical optimization techniques to design of large engineering and industrial systems, and in using the computer-aided design packages with optimization capabilities which are now available.

Author : Martin P. Bendsøe,Carlos A. Mota Soares
Publisher : Springer Science & Business Media
Page : 564 pages
File Size : 41,7 Mb
Release : 2012-12-06
Category : Mathematics
ISBN : 9789401118040

Get Book

Topology Design of Structures by Martin P. Bendsøe,Carlos A. Mota Soares Pdf

Proceedings of the NATO Advanced Research Workshop, Sesimbra, Portugal, June 20-26, 1992

Author : William R. Spillers,Keith M. MacBain
Publisher : Springer Science & Business Media
Page : 304 pages
File Size : 49,9 Mb
Release : 2009-06-10
Category : Technology & Engineering
ISBN : 9780387958651

Get Book

Structural Optimization by William R. Spillers,Keith M. MacBain Pdf

Structural Optimization is intended to supplement the engineer’s box of analysis and design tools making optimization as commonplace as the finite element method in the engineering workplace. It begins with an introduction to structural optimization and the methods of nonlinear programming such as Lagrange multipliers, Kuhn-Tucker conditions, and calculus of variations. It then discusses solution methods for optimization problems such as the classic method of linear programming which leads to the method of sequential linear programming. It then proposes using sequential linear programming together with the incremental equations of structures as a general method for structural optimization. It is furthermore intended to give the engineer an overview of the field of structural optimization.

Author : George I. N. Rozvany,Tomasz Lewinski
Publisher : Springer Science & Business Media
Page : 471 pages
File Size : 46,7 Mb
Release : 2013-09-20
Category : Science
ISBN : 9783709116432

Get Book

Topology Optimization in Structural and Continuum Mechanics by George I. N. Rozvany,Tomasz Lewinski Pdf

The book covers new developments in structural topology optimization. Basic features and limitations of Michell’s truss theory, its extension to a broader class of support conditions, generalizations of truss topology optimization, and Michell continua are reviewed. For elastic bodies, the layout problems in linear elasticity are discussed and the method of relaxation by homogenization is outlined. The classical problem of free material design is shown to be reducible to a locking material problem, even in the multiload case. For structures subjected to dynamic loads, it is explained how they can be designed so that the structural eigenfrequencies of vibration are as far away as possible from a prescribed external excitation frequency (or a band of excitation frequencies) in order to avoid resonance phenomena with high vibration and noise levels. For diffusive and convective transport processes and multiphysics problems, applications of the density method are discussed. In order to take uncertainty in material parameters, geometry, and operating conditions into account, techniques of reliability-based design optimization are introduced and reviewed for their applicability to topology optimization.