Force Method Optimization

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Force Method Optimization

Author : R. A. Gellatly
Publisher :
ISBN 13 :
Total Pages : 102 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis Force Method Optimization by : R. A. Gellatly

Download or read book Force Method Optimization written by R. A. Gellatly and published by . This book was released on 1980 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: To overcome problems arising from the rigorous representation of stress constraints in structural optimization, the use of the force method is demonstrated. The force method of finite element analysis is used to transform a stress-constrained redundant structure into a stress and displacement constrained determinate structure for the purposes of optimization. The resulting problem is non-linear, but the use of a linear programming stage is effective in providing a rapid convergence on the optimum design in many cases. Problems which hitherto required many iterations to converge are now solvable in only one or two steps. The rate of constraint numbers versus numbers of variables is investigated analytically using a 22-bar truss problem as an example. The vital key in optimization technology is identified as the identification of active constraints. The incorporation of displacement constraints into the optimization program is also presented. Examples of problems solved by this approach are included. Discussion of difficulties encountered in the development work also provides indicators for future areas of research. (Author).

Force Method Optimization II.

Author : Batt J. R.
Publisher :
ISBN 13 :
Total Pages : 128 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Force Method Optimization II. by : Batt J. R.

Download or read book Force Method Optimization II. written by Batt J. R. and published by . This book was released on 1982 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: The program was developed to support the investigation of the utilization of the force method of finite element analysis for the automatic iterative design of aircraft structures with stress, displacements, maximum and minimum size and dynamic constraints. It develops a rapid reanalysis method based on the force method for damage assessment. Research has resulted in a computer code named OPTFORCE II an expansion of code OPTFORCE I. Multiple loading capabilities and four finite elements have been included. These are: membrane triangle, membrane quadrilateral, shear panel and bar (axial force). Examples of problems solved by the OPTFORCE II code are presented and compared to the optimization code OPTIM III for purposes of establishing the efficiency of the force method vs. the 'displacement' method of analysis. A technical discussion of the research conducted is presented wherein conclusions and recommendations for future research topics are given.

Force Method Optimization II. Volume II. User's Manual

Author :
Publisher :
ISBN 13 :
Total Pages : 232 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis Force Method Optimization II. Volume II. User's Manual by :

Download or read book Force Method Optimization II. Volume II. User's Manual written by and published by . This book was released on 1982 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: This technical paper describes the Table Computation Program (TCP) developed to facilitate the manipulation and presentation of tabular information for analysis and analysis reporting purposes. This document includes an overview of how the program functions and instructions on how to use it. In addition, technical information is provided for those who may wish to modify or expand the program to satisfy unique requirements.

Force Method Optimization II.

Author : Batt J. R.
Publisher :
ISBN 13 :
Total Pages : 230 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Force Method Optimization II. by : Batt J. R.

Download or read book Force Method Optimization II. written by Batt J. R. and published by . This book was released on 1982 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: This technical paper describes the Table Computation Program (TCP) developed to facilitate the manipulation and presentation of tabular information for analysis and analysis reporting purposes. This document includes an overview of how the program functions and instructions on how to use it. In addition, technical information is provided for those who may wish to modify or expand the program to satisfy unique requirements. The program was developed to support the investigation of the utilization of the force method of finite element analysis for the automatic iterative design of aircraft structures with stress, displacements, maximum and minimum size and dynamic constraints. It develops a rapid reanalysis method based on the force method for damage assessment. Research has resulted in a computer code named OPTFORCE II an expansion of code OPTFORCE I. Multiple loading capabilities and four finite elements have been included. These are: membrane triangle, membrane quadrilateral, shear panel and bar (axial force). Examples of problems solved by the OPTFORCE II code are presented and compared to the optimization code OPTIM III for purposes of establishing the efficiency of the force method vs. the 'displacement' method of analysis. A technical discussion of the research conducted is presented wherein conclusions and recommendations for future research topics are given.

Optimization Procedure Using Force Method

Author : Marjadi Dhiren
Publisher :
ISBN 13 :
Total Pages : 84 pages
Book Rating : 4.:/5 (142 download)

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Book Synopsis Optimization Procedure Using Force Method by : Marjadi Dhiren

Download or read book Optimization Procedure Using Force Method written by Marjadi Dhiren and published by . This book was released on 1986 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Force Method Optimization II. Volume I. Theoretical Development

Author : James R. Batt
Publisher :
ISBN 13 :
Total Pages : 126 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis Force Method Optimization II. Volume I. Theoretical Development by : James R. Batt

Download or read book Force Method Optimization II. Volume I. Theoretical Development written by James R. Batt and published by . This book was released on 1982 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt: The document investigates the utilization of the force method of finite element analysis for the automatic iterative design of aircraft structures with stress, displacements, maximum and minimum size and dynamic constraints. It develops a rapid reanalysis method based on the force method for damage assessment. Research has resulted in a computer code named OPTFORCE II an expansion of code OPTFORCE I. Multiple loading capabilities and four finite elements have been included. These are: membrane triangle, membrane quadrilateral, shear panel and bar (axial force). Examples of problems solved by the OPTFORCE II code are presented and compared to the optimization code OPTIM III for purposes of establishing the efficiency of the force method vs. the 'displacement' method of analysis. A technical discussion of the research conducted is presented wherein conclusions and recommendations for future research topics are given.

Nature Inspired Cooperative Strategies for Optimization (NICSO 2007)

Author : Natalio Krasnogor
Publisher : Springer
ISBN 13 : 3540789871
Total Pages : 520 pages
Book Rating : 4.5/5 (47 download)

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Book Synopsis Nature Inspired Cooperative Strategies for Optimization (NICSO 2007) by : Natalio Krasnogor

Download or read book Nature Inspired Cooperative Strategies for Optimization (NICSO 2007) written by Natalio Krasnogor and published by Springer. This book was released on 2008-06-03 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biological and natural processes have been a continuous source of inspiration for the sciences and engineering. For instance, the work of Wiener in cybernetics was influenced by feedback control processes observable in biological systems; McCulloch and Pitts description of the artificial neuron was instigated by biological observations of neural mechanisms; the idea of survival of the fittest inspired the field of evolutionary algorithms and similarly, artificial immune systems, ant colony optimisation, automated self-assembling programming, membrane computing, etc. also have their roots in natural phenomena. The second International Workshop on Nature Inspired Cooperative Strategies for Optimization (NICSO), was held in Acireale, Italy, during November 8-10, 2007. The aim for NICSO 2007 was to provide a forum were the latest ideas and state of the art research related to cooperative strategies for problem solving arising from Nature could be discussed. The contributions collected in this book were strictly peer reviewed by at least three members of the international programme committee, to whom we are indebted for their support and assistance. The topics covered by the contributions include several well established nature inspired techniques like Genetic Algorithms, Ant Colonies, Artificial Immune Systems, Evolutionary Robotics, Evolvable Systems, Membrane Computing, Quantum Computing, Software Self Assembly, Swarm Intelligence, etc.

Structural Optimization Using Shuffled Shepherd Meta-Heuristic Algorithm

Author : Ali Kaveh
Publisher : Springer Nature
ISBN 13 : 3031255739
Total Pages : 288 pages
Book Rating : 4.0/5 (312 download)

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Book Synopsis Structural Optimization Using Shuffled Shepherd Meta-Heuristic Algorithm by : Ali Kaveh

Download or read book Structural Optimization Using Shuffled Shepherd Meta-Heuristic Algorithm written by Ali Kaveh and published by Springer Nature. This book was released on 2023-03-01 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the so-called Shuffled Shepherd Optimization Algorithm (SSOA), a recently developed meta-heuristic algorithm by authors. There is always limitations on the resources to be used in the construction. Some of the resources used in the buildings are also detrimental to the environment. For example, the cement utilized in making concrete emits carbon dioxide, which contributes to the global warming. Hence, the engineers should employ resources efficiently and avoid the waste. In the traditional optimal design methods, the number of trials and errors used by the designer is limited, so there is no guarantee that the optimal design can be found for structures. Hence, the deigning method should be changed, and the computational algorithms should be employed in the optimum design problems. The gradient-based method and meta-heuristic algorithms are the two different types of methods used to find the optimal solution. The gradient-based methods require gradient information. Also, these can easily be trapped in the local optima in the nonlinear and complex problems. Therefore, to overcome these issues, meta-heuristic algorithms are developed. These algorithms are simple and can get out of the local optimum by easy means. However, a single meta-heuristic algorithm cannot find the optimum results in all types of optimization problems. Thus, civil engineers develop different meta-heuristic algorithms for their optimization problems. Different applications of the SSOA are provided. The simplified and enhanced versions of the SSOA are also developed and efficiently applied to various optimization problems in structures. Another special feature of this book consists of the use of graph theoretical force method as analysis tool, in place of traditional displacement approach. This has reduced the computational time to a great extent, especially for those structures having smaller DSI compared to the DKI. New framework is also developed for reliability-based design of frame structures. The algorithms are clearly stated such that they can simply be implemented and utilized in practice and research.

Computational Optimization, Methods and Algorithms

Author : Slawomir Koziel
Publisher : Springer Science & Business Media
ISBN 13 : 3642208584
Total Pages : 292 pages
Book Rating : 4.6/5 (422 download)

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Book Synopsis Computational Optimization, Methods and Algorithms by : Slawomir Koziel

Download or read book Computational Optimization, Methods and Algorithms written by Slawomir Koziel and published by Springer Science & Business Media. This book was released on 2011-06-17 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: Computational optimization is an important paradigm with a wide range of applications. In virtually all branches of engineering and industry, we almost always try to optimize something - whether to minimize the cost and energy consumption, or to maximize profits, outputs, performance and efficiency. In many cases, this search for optimality is challenging, either because of the high computational cost of evaluating objectives and constraints, or because of the nonlinearity, multimodality, discontinuity and uncertainty of the problem functions in the real-world systems. Another complication is that most problems are often NP-hard, that is, the solution time for finding the optimum increases exponentially with the problem size. The development of efficient algorithms and specialized techniques that address these difficulties is of primary importance for contemporary engineering, science and industry. This book consists of 12 self-contained chapters, contributed from worldwide experts who are working in these exciting areas. The book strives to review and discuss the latest developments concerning optimization and modelling with a focus on methods and algorithms for computational optimization. It also covers well-chosen, real-world applications in science, engineering and industry. Main topics include derivative-free optimization, multi-objective evolutionary algorithms, surrogate-based methods, maximum simulated likelihood estimation, support vector machines, and metaheuristic algorithms. Application case studies include aerodynamic shape optimization, microwave engineering, black-box optimization, classification, economics, inventory optimization and structural optimization. This graduate level book can serve as an excellent reference for lecturers, researchers and students in computational science, engineering and industry.

Optimality Criterion Methods in Structural Optimization

Author : N. S. Khot
Publisher :
ISBN 13 :
Total Pages : 170 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Optimality Criterion Methods in Structural Optimization by : N. S. Khot

Download or read book Optimality Criterion Methods in Structural Optimization written by N. S. Khot and published by . This book was released on 1982 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: Optimization algorithms based on an optimal criterion to design a minimum weight structure are presented. The algorithms are derived for the direct design variable and the reciprocal design variable, and their relationship is discussed. The use of different algorithms and their effect on the convergence behavior is illustrated with sample problems. The presentation is limited to structures which can be analyzed by the finite element method and which are subjected to the constraints on stresses, displacements, minimum and maximum sizes and system stability. (Author).

Structural Optimization and Sensitivity Analysis Using Finite Element Force Method

Author : Amandeep Singh
Publisher :
ISBN 13 : 9780494289440
Total Pages : 164 pages
Book Rating : 4.2/5 (894 download)

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Book Synopsis Structural Optimization and Sensitivity Analysis Using Finite Element Force Method by : Amandeep Singh

Download or read book Structural Optimization and Sensitivity Analysis Using Finite Element Force Method written by Amandeep Singh and published by . This book was released on 2007 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of the present research is to develop a computer aided environment for optimization of structures by integrating the structural and design sensitivity analysis using the finite element force method, and mathematical programming techniques. A reliable tool for sensitivity analysis is perquisite for performing interactive structural design, synthesis and optimization. The sensitivity analysis is used to provide the gradient information to the gradient-based optimization algorithm. The developed structural optimization methodology using the force method is used to optimize discrete structures subjected to stress, displacement and frequencies constraints, and results are compared with those generated from displacement method and those in literature. The improved accuracy and efficiency of the developed optimization algorithm using analytical sensitivity analysis is also demonstrated by comparing the results with those obtained from the numerical sensitivity analysis.

AI-Based Optimized Design of Structural Frames

Author : Won‐Kee Hong
Publisher : CRC Press
ISBN 13 : 1040130968
Total Pages : 607 pages
Book Rating : 4.0/5 (41 download)

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Book Synopsis AI-Based Optimized Design of Structural Frames by : Won‐Kee Hong

Download or read book AI-Based Optimized Design of Structural Frames written by Won‐Kee Hong and published by CRC Press. This book was released on 2024-10-16 with total page 607 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces an auto‐design‐based optimization for building frames using an artificial neural network (ANN)‐based Lagrange method and novel genetic algorithm (GA). The work of great mathematician Joseph‐Louis Lagrange and ANNs are merged to identify parameters that optimize structural frames of reinforced concrete, prestressed concrete, and steel frames subject to one or more design constraints. New features for enhancing conventional GA are also demonstrated to optimize structural frames. New features for optimizing multiple design targets of the building frames are highlighted, while design requirements imposed by codes are automatically satisfied. Chapters provide readers with an understanding of how both ANN‐based and novel GA‐based structural optimization can be implemented in holistically optimizing designated design targets for building structural frames, guiding readers toward more rational designs that is consistent with American Institute of Steel Construction (AISC) and American Concrete Institute (ACI) standards. ANN‐based holistic designs of multi‐story frames in general and reinforced concrete, prestressed concrete, and steel frames in particular, are introduced. This book suits structural engineers, architects, and graduate students in the field of building frame designs and is heavily illustrated with color figures and tables.

Structural Optimization

Author : Uri Kirsch
Publisher : Springer Science & Business Media
ISBN 13 : 3642848451
Total Pages : 311 pages
Book Rating : 4.6/5 (428 download)

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Book Synopsis Structural Optimization by : Uri Kirsch

Download or read book Structural Optimization written by Uri Kirsch and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 311 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book was developed while teaching a graduate course at several universities in the United States. Europe and Israel. during the last two decades. The purpose of the book is to introduce the fundamentals and applications of optimum structural design. Much work has been done in this area recently and many studies have been published. The book is an attempt to collect together selected topics of this literature and to present them in a unified approach. It meets the need for an introductory text covering the basic concepts of modem structural optimization. A previous book by the author on this subject ("Optimum Structural Design". published by McGraw-Hill New York in 1981 and by Maruzen Tokyo in 1983). has been used extensively as a text in many universities throughout the world. The present book reflects the rapid progress and recent developments in this area. A major difficulty in studying structural optimization is that integration of concepts used in several areas. such as structural analysis. numerical optimization and engineering design. is necessary in order to solve a specific problem. To facilitate the study of these topics. the book discusses in detail alternative problem formulations. the fundamentals of different optimization methods and various considerations related to structural design. The advantages and the limitations of the presented approaches are illustrated by numerous examples.

Computational Structural Analysis and Finite Element Methods

Author : A. Kaveh
Publisher : Springer Science & Business Media
ISBN 13 : 3319029649
Total Pages : 445 pages
Book Rating : 4.3/5 (19 download)

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Book Synopsis Computational Structural Analysis and Finite Element Methods by : A. Kaveh

Download or read book Computational Structural Analysis and Finite Element Methods written by A. Kaveh and published by Springer Science & Business Media. This book was released on 2013-12-11 with total page 445 pages. Available in PDF, EPUB and Kindle. Book excerpt: Graph theory gained initial prominence in science and engineering through its strong links with matrix algebra and computer science. Moreover, the structure of the mathematics is well suited to that of engineering problems in analysis and design. The methods of analysis in this book employ matrix algebra, graph theory and meta-heuristic algorithms, which are ideally suited for modern computational mechanics. Efficient methods are presented that lead to highly sparse and banded structural matrices. The main features of the book include: application of graph theory for efficient analysis; extension of the force method to finite element analysis; application of meta-heuristic algorithms to ordering and decomposition (sparse matrix technology); efficient use of symmetry and regularity in the force method; and simultaneous analysis and design of structures.

Design and Analysis of Algorithms

Author : Sandeep Sen
Publisher : Cambridge University Press
ISBN 13 : 1108496822
Total Pages : 395 pages
Book Rating : 4.1/5 (84 download)

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Book Synopsis Design and Analysis of Algorithms by : Sandeep Sen

Download or read book Design and Analysis of Algorithms written by Sandeep Sen and published by Cambridge University Press. This book was released on 2019-05-23 with total page 395 pages. Available in PDF, EPUB and Kindle. Book excerpt: Focuses on the interplay between algorithm design and the underlying computational models.

Force Methods of Structural Analyses for Optimization

Author : Dhiren Marjadi
Publisher :
ISBN 13 :
Total Pages : 388 pages
Book Rating : 4.:/5 (211 download)

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Book Synopsis Force Methods of Structural Analyses for Optimization by : Dhiren Marjadi

Download or read book Force Methods of Structural Analyses for Optimization written by Dhiren Marjadi and published by . This book was released on 1988 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Metaheuristic Applications in Structures and Infrastructures

Author : Siamak Talatahari
Publisher : Elsevier Inc. Chapters
ISBN 13 : 0128066318
Total Pages : 47 pages
Book Rating : 4.1/5 (28 download)

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Book Synopsis Metaheuristic Applications in Structures and Infrastructures by : Siamak Talatahari

Download or read book Metaheuristic Applications in Structures and Infrastructures written by Siamak Talatahari and published by Elsevier Inc. Chapters. This book was released on 2013-01-31 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt: