Structural Dynamic Systems Computational Techniques And Optimization

Author : Cornelius T. Leondes
Publisher : CRC Press
Page : 284 pages
File Size : 55,9 Mb
Release : 1999-05-11
Category : Technology & Engineering
ISBN : 9056996584

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Structural Dynamic Systems Computational Techniques and Optimization by Cornelius T. Leondes Pdf

There are various techniques to optimize either structural parameters, or structural controllers, but there are not many techniques that can simultaneously optimize the structural parameters and controller. The advantage of integrating the structural and controller optimization problems is that structure and controller interaction is taken into account in the design process and a more efficient overall design (lower control force/lighter weight) can be achieved, and also multidisciplinary design optimization can be performed. The down side is that the combined optimization problem is more difficult to formulate and solve, and computations are increased. This volume is a comprehensive treatment of dynamic analysis and control techniques in structural dynamic systems and the wide variety of issues and techniques that fall within this broad area, including the interactions between structural control systems and structural system parameters.

Author : Cornelius T. Leondes
Publisher : CRC Press
Page : 346 pages
File Size : 47,5 Mb
Release : 1999-03-22
Category : Mathematics
ISBN : 9056996576

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Structural Dynamic Systems Computational Techniques and Optimization by Cornelius T. Leondes Pdf

Computational techniques for the analysis and design of structural dynamic systems using numerical methods have been the focus of an enormous amount of research for several decades. In general, the numerical methods utilized to solve these problems include two phases: (a) spatial discretization by either the finite element method (FEM) or the finite difference method (FDM), and (b) solution of systems of time dependent second-order ordinary differential equations. In addition, the significantly powerful advances in computer systems capabilities have put on the desks of structural systems designers enormous computing power either by means of increasingly effective computer workstations or else through PCs (personal computers), whose increasing power has succeeded in marginalizing the computational power differences between PCs and workstations in many cases. This volume is a comprehensive treatment of the issues involved in computational techniques in structural dynamic systems.

Author : Cornelius T. Leondes
Publisher : Elsevier
Page : 262 pages
File Size : 52,8 Mb
Release : 1999
Category : Computers
ISBN : 9056996568

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Structural Dynamic Systems Computational Techniques and Optimization by Cornelius T. Leondes Pdf

Conventional seismic design has been based on structural strength in the initial design of structures, resulting in lateral force resisting systems with sufficient strength to be able to absorb and dissipate the seismic. For important structures such as urban high speed road systems, high rise buildings, hospitals, airports and other essential structures which must be quite functional after an earthquake, modern seismic structural design techniques have been developed with a view toward eliminating or significantly reducing seismic damage to such structures. This volume is a comprehensive treatment of the issues involved in modern seismic design techniques for structure with a view to significantly enhancing their capability of surviving earthquakes to an adequate degree, i.e., enhancing the ability of structural systems to withstand high level earthquakes.

Author : Cornelius T. Leondes
Publisher : Taylor & Francis Group
Page : 0 pages
File Size : 43,7 Mb
Release : 1999
Category : Computers
ISBN : 9056996525

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Structural Dynamic Systems Computational Techniques and Optimization by Cornelius T. Leondes Pdf

Among the principal causes of failure in structural dynamic systems are exceedance of maximum structural systems design limit and structural fatigue failure. These processes are analyzed in this volume, and require sophisticated methods such as stochastic processes and their interactions with a structure as applied forces with stochastic description, finite element techniques, and other processes. Once these aspects are understood and applied, approaches to enhancing the reliability and damage tolerance of structural systems can be examined and applied to specific structural dynamic systems. This volume offers a comprehensive treatment of the issues and the sophisticated techniques involved and includes numerous illustrative examples.

Author : Cornelius T. Leondes
Publisher : CRC Press
Page : 284 pages
File Size : 54,9 Mb
Release : 1999-02-22
Category : Technology & Engineering
ISBN : 9056996444

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Structural Dynamic Systems Computational Techniques and Optimization by Cornelius T. Leondes Pdf

Formulation of an optimal dynamic structural system design problem requires identification of design variables that describe the structural system, a cost function that needs to be minimized, and performance and safety constraints for the system. The formulation of the problem depends upon the type of application and objectives to be achieved, i.e., the shape, the sizing, or topology design problem. Specific design variable definition, cost of function and constraints are dictated by the application. This volume is a comprehensive treatment of the general methods involved in this broadly fundamental problem and provides essential techniques in specific but pervasive structural dynamic systems elements and their optimization.

Author : Cornelius T. Leondes
Publisher : Gordon & Breach Science Publishers
Page : 0 pages
File Size : 48,8 Mb
Release : 1999
Category : Bridges
ISBN : 905699655X

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Structural Dynamic Systems Computational Techniques and Optimization by Cornelius T. Leondes Pdf

Many high-rise buildings have been constructed in recent decades, particularly in Western Pacific Rim countries. Some to be completed soon and in future include: (1) Grand Gateway at XI Hul, Shanghai; (2) Tomorrow Square, Shanghai; (3) Xiamen Post and Telecommunications Buildings, Xiamen, China; (4) Petronas Twin Towers, Kaula Lumpur, Malaysia; and (5) Shanghai World Financial Center, Petronas Twin Towers and the Shanghai World Financial Center are 1,483 ft. and 1,509 ft. in height, respectively. While these represent the ultimate challenges in structural aspects of buildings, there are challenges for structural aspects of buildings of various heights. This book is a comprehensive treatment of the issues and advanced techniques involved in building and bridge structures. Numerous illustrative examples are included.

Author : Cornelius T. Leondes
Publisher : CRC Press
Page : 352 pages
File Size : 53,9 Mb
Release : 1999-05-11
Category : Technology & Engineering
ISBN : 9056996592

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Structural Dynamic Systems Computational Techniques and Optimization by Cornelius T. Leondes Pdf

Nonlinear structural dynamic systems which are multi-degree of freedom systems involve, for instance, matrix dynamic equilibrium equations, which can be of various order up to very high order. In these equations, the nonlinear quantities can be dependent on time and other terms, such as scalar variables, which are dependent on time. Frequency response and response time derivatives would also, of course, be involved. Nonlinear terms can account for dissipative phenomena and can be due to other physical phenomena. In fact, many engineering structures involve time-dependent properties such as, stiffness elements of specific structural components which can change according to the stress level. Other examples of dynamic elements of nonlinear structural systems can include system mass and damping distribution elements which evolve with time, such as railway or highway bridges and other structures, which interact with external agencies generating the system motion (for example, trains, a queue of vehicles, or other external agencies.) This volume is a rather comprehensive treatment of many of the techniques and methods which are utilized for the analysis of nonlinear structural dynamic systems.

Author : Cornelius T. Leondes
Publisher : Routledge
Page : 338 pages
File Size : 51,7 Mb
Release : 2021-09-02
Category : Mathematics
ISBN : 9781351413237

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Structural Dynamic Systems Computational Techniques and Optimization by Cornelius T. Leondes Pdf

The finite element, an approximation method for solving differential equations of mathematical physics, is a highly effective technique in the analysis and design, or synthesis, of structural dynamic systems. Starting from the system differential equations and its boundary conditions, what is referred to as a weak form of the problem (elaborated in the text) is developed in a variational sense. This variational statement is used to define elemental properties that may be written as matrices and vectors as well as to identify primary and secondary boundaries and all possible boundary conditions. Specific equilibrium problems are also solved. This book clearly reveals the effectiveness and great significance of the finite element method available and the essential role it will play in the future as further development occurs.

Author : Cornelius T. Leondes
Publisher : CRC Press
Page : 274 pages
File Size : 46,8 Mb
Release : 1999-01-27
Category : Computers
ISBN : 9056996428

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Structural Dynamic Systems Com by Cornelius T. Leondes Pdf

The availability of powerful computers along with highly effective computational techniques have allowed computer-aided design and engineering of structural dynamics systems to achieve a high level of capability and importance. This volume clearly reveals the great significance of these techniques and the essential role they will play in the future as further development occurs. This will be a significant and unique reference for students, research workers, practitioners, computer scientists and others for years to come.

Author : L. Meirovitch
Publisher : Springer Science & Business Media
Page : 462 pages
File Size : 45,7 Mb
Release : 1980-10-31
Category : Mathematics
ISBN : 9028605800

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Computational Methods in Structural Dynamics by L. Meirovitch Pdf

Author : C.T. Leonides
Publisher : Elsevier
Page : 272 pages
File Size : 42,8 Mb
Release : 2012-12-02
Category : Technology & Engineering
ISBN : 9780323162371

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Control and Dynamic Systems V30: Advances in Algorithms and Computational Techniques in Dynamic System Control Part 3 of 3 by C.T. Leonides Pdf

Control and Dynamic Systems: Advances in Theory in Applications, Volume 30: Advances in Algorithms and Computational Techniques in Dynamic Systems Control, Part 3 of 3 discusses developments in algorithms and computational techniques for control and dynamic systems. This volume begins with the issue of decision making or optimal control in the natural environment. It then discusses large-scale systems composed of multiple sensors; algorithms for systems with multiplicative noise; stochastic differential games; Markovian targets; low-cost microcomputer and true digital control systems; and algorithms for the design of teleoperated systems. This book is an important reference for practitioners in the field who want a comprehensive source of techniques with significant applied implications.

Author : Manolis Papadrakakis,Dimos C. Charmpis,Yannis Tsompanakis,Nikos D. Lagaros
Publisher : CRC Press
Page : 672 pages
File Size : 48,5 Mb
Release : 2008-12-04
Category : Technology & Engineering
ISBN : 9780203881637

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Computational Structural Dynamics and Earthquake Engineering by Manolis Papadrakakis,Dimos C. Charmpis,Yannis Tsompanakis,Nikos D. Lagaros Pdf

The increasing necessity to solve complex problems in Structural Dynamics and Earthquake Engineering requires the development of new ideas, innovative methods and numerical tools for providing accurate numerical solutions in affordable computing times. This book presents the latest scientific developments in Computational Dynamics, Stochastic Dynam

Author : Jasbir Arora
Publisher : Academic Press
Page : 898 pages
File Size : 55,5 Mb
Release : 2011-08-17
Category : Mathematics
ISBN : 9780123813756

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Introduction to Optimum Design by Jasbir Arora Pdf

Introduction to Optimum Design is the most widely used textbook in engineering optimization and optimum design courses. It is intended for use in a first course on engineering design and optimization at the undergraduate or graduate level within engineering departments of all disciplines, but primarily within mechanical, aerospace and civil engineering. The basic approach of the text is to describe an organized approach to engineering design optimization in a rigorous yet simplified manner, illustrate various concepts and procedures with simple examples, and demonstrate their applicability to engineering design problems. Formulation of a design problem as an optimization problem is emphasized and illustrated throughout the text. Excel and MATLAB are featured throughout as learning and teaching aids. The 3rd edition has been reorganized and enhanced with new material, making the book even more appealing to instructors regardless of the level they teach the course. Examples include moving the introductory chapter on Excel and MATLAB closer to the front of the book and adding an early chapter on practical design examples for the more introductory course, and including a final chapter on advanced topics for the purely graduate level course. Basic concepts of optimality conditions and numerical methods are described with simple and practical examples, making the material highly teachable and learnable. Applications of the methods for structural, mechanical, aerospace and industrial engineering problems. Introduction to MATLAB Optimization Toolbox. Optimum design with Excel Solver has been expanded into a full chapter. Practical design examples introduce students to usage of optimization methods early in the book. New material on several advanced optimum design topics serves the needs of instructors teaching more advanced courses.

Author : Jasbir Singh Arora
Publisher : Elsevier
Page : 1121 pages
File Size : 47,7 Mb
Release : 2024-03-18
Category : Technology & Engineering
ISBN : 9780128183212

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Introduction to Optimum Design by Jasbir Singh Arora Pdf

Arora’s Introduction to Optimum Design is the most widely used textbook in engineering optimization and optimum design courses. It is intended for use in a first course on engineering design and optimization at the undergraduate or graduate level within engineering departments of all disciplines, but primarily within mechanical, aerospace and civil engineering. The basic approach of the text is to describe an organized approach to engineering design optimization in a rigorous yet simplified manner, illustrate various concepts and procedures with simple examples, and demonstrate their applicability to engineering design problems. Formulation of a design problem as an optimization problem is emphasized and illustrated throughout the text. Excel and MATLAB are featured as learning and teaching aids. The fifth edition has been enhanced with new or expanded content in such areas as reliability-based optimization, life-cycle optimization of structures, metamodeling, shape and topology optimization, and combinatorial problems. Describes basic concepts of optimality conditions and numerical methods with simple and practical examples, making the material highly teachable and learnable Includes applications of optimization methods for structural, mechanical, aerospace, and industrial engineering problems Covers practical design examples and introduces students to the use of optimization methods Serves the needs of instructors who teach more advanced courses Features new or expanded content in such areas as reliability-based optimization, life-cycle optimization of structures, metamodeling, shape and topology optimization

Author : Plevris, Vagelis
Publisher : IGI Global
Page : 456 pages
File Size : 47,6 Mb
Release : 2012-05-31
Category : Technology & Engineering
ISBN : 9781466616417

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Structural Seismic Design Optimization and Earthquake Engineering: Formulations and Applications by Plevris, Vagelis Pdf

Throughout the past few years, there has been extensive research done on structural design in terms of optimization methods or problem formulation. But, much of this attention has been on the linear elastic structural behavior, under static loading condition. Such a focus has left researchers scratching their heads as it has led to vulnerable structural configurations. What researchers have left out of the equation is the element of seismic loading. It is essential for researchers to take this into account in order to develop earthquake resistant real-world structures. Structural Seismic Design Optimization and Earthquake Engineering: Formulations and Applications focuses on the research around earthquake engineering, in particular, the field of implementation of optimization algorithms in earthquake engineering problems. Topics discussed within this book include, but are not limited to, simulation issues for the accurate prediction of the seismic response of structures, design optimization procedures, soft computing applications, and other important advancements in seismic analysis and design where optimization algorithms can be implemented. Readers will discover that this book provides relevant theoretical frameworks in order to enhance their learning on earthquake engineering as it deals with the latest research findings and their practical implementations, as well as new formulations and solutions.