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Author: H. L. Cox
Publisher: Elsevier
ISBN: 1483222586
Category : Technology & Engineering
Languages : en
Pages : 144
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Book Description
International Series of Monographs in Aeronautics and Astronautics, Division 1: Solid and Structural Mechanics, Volume 8: The Design of Structures of Least Weight focuses on the design of structures. This book reviews the considerations that determine the minimal structure weight and illustrates how these considerations may be expected to influence design. Topics discussed include the theory in design, structure loading coefficients and struts, wide struts, panels, and design of beams to transmit pure bending. The design of cantilevers, detail design of braced frames, basic theory of layout, and layout in practical design are also deliberated in this publication. This volume is recommended for design engineers and specialists intending to acquire knowledge of design structures of least weight.
Author: H. L. Cox
Publisher: Elsevier
ISBN: 1483222586
Category : Technology & Engineering
Languages : en
Pages : 144
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Book Description
International Series of Monographs in Aeronautics and Astronautics, Division 1: Solid and Structural Mechanics, Volume 8: The Design of Structures of Least Weight focuses on the design of structures. This book reviews the considerations that determine the minimal structure weight and illustrates how these considerations may be expected to influence design. Topics discussed include the theory in design, structure loading coefficients and struts, wide struts, panels, and design of beams to transmit pure bending. The design of cantilevers, detail design of braced frames, basic theory of layout, and layout in practical design are also deliberated in this publication. This volume is recommended for design engineers and specialists intending to acquire knowledge of design structures of least weight.
Author: Liang Xia
Publisher: Elsevier
ISBN: 0081011865
Category : Technology & Engineering
Languages : en
Pages : 186
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Book Description
Multiscale Structural Topology Optimization discusses the development of a multiscale design framework for topology optimization of multiscale nonlinear structures. With the intention to alleviate the heavy computational burden of the design framework, the authors present a POD-based adaptive surrogate model for the RVE solutions at the microscopic scale and make a step further towards the design of multiscale elastoviscoplastic structures. Various optimization methods for structural size, shape, and topology designs have been developed and widely employed in engineering applications. Topology optimization has been recognized as one of the most effective tools for least weight and performance design, especially in aeronautics and aerospace engineering. This book focuses on the simultaneous design of both macroscopic structure and microscopic materials. In this model, the material microstructures are optimized in response to the macroscopic solution, which results in the nonlinearity of the equilibrium problem of the interface of the two scales. The authors include a reduce database model from a set of numerical experiments in the space of effective strain. - Presents the first attempts towards topology optimization design of nonlinear highly heterogeneous structures - Helps with simultaneous design of the topologies of both macroscopic structure and microscopic materials - Helps with development of computer codes for the designs of nonlinear structures and of materials with extreme constitutive properties - Focuses on the simultaneous design of both macroscopic structure and microscopic materials - Includes a reduce database model from a set of numerical experiments in the space of effective strain
Author: Howard Davis
Publisher: Taylor & Francis
ISBN: 1000625095
Category : Architecture
Languages : en
Pages : 403
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Book Description
This book brings together key works of the noted architect and architectural theorist Christopher Alexander (1936–2022), many of which have not been published before. The book contains twenty-five essays and other works, many chosen from the newly organized Christopher Alexander archive, providing a window into the ideas and thought process of one of the most innovative architectural thinkers of the twentieth century. The items span Alexander’s fifty-year career, beginning with an early version of his PhD dissertation based on fieldwork in India, continuing to fifteen years in the development of A Pattern Language, one of the best-selling books in the history of architecture, and proceeding to the writing of The Nature of Order, Alexander’s four-volume masterwork, and beyond. The writings combine theory and descriptions of practice, and together support a blueprint for the development of a new, humane way of building, while also providing a window into the mind of an extraordinary thinker, teacher and professional.
Author: J. E. Gordon
Publisher: Da Capo Press
ISBN: 0786730358
Category : Technology & Engineering
Languages : en
Pages : 422
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Book Description
In a book that Business Insider noted as one of the "14 Books that inspired Elon Musk," J.E. Gordon strips engineering of its confusing technical terms, communicating its founding principles in accessible, witty prose. For anyone who has ever wondered why suspension bridges don't collapse under eight lanes of traffic, how dams hold back-or give way under-thousands of gallons of water, or what principles guide the design of a skyscraper or a kangaroo, this book will ease your anxiety and answer your questions. J. E. Gordon strips engineering of its confusing technical terms, communicating its founding principles in accessible, witty prose.
Author: Ronald A. Gellatly
Publisher:
ISBN:
Category : Numerical analysis
Languages : en
Pages : 84
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Book Description
The report considers the state of the art in methods of structural optimization. Mathematical programming based methods, while extremely successful with problems of moderate size tend to become prohibitively costly when applied to large scale structures. A novel approach to the weight optimization of indeterminate structures under multiple loading conditions with strength and displacement constraints has been developed and is presented herein. Using this method significant improvements in computational time have been achieved over direct numerical search methods. In some cases the numbers of iterations required to determine the least weight have been reduced by factors of over 20. The rate of convergence is independent of problem size permitting application to large scale structures. Examples of application of the new approach to a number of problems are included.
Author: Tomasz Lewiński
Publisher: Springer
ISBN: 3319951807
Category : Science
Languages : en
Pages : 582
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Book Description
The book covers the theory of Michell structures being the lightest and fully stressed systems of bars, designed within a given domain, possibly within the whole space, transmitting a given load towards a given support. Discovered already in 1904 by A.G.M. Michell, the structures named after him have attracted constant attention due to their peculiar feature of disclosing the optimal streams of stresses equilibrating a given load and thus determining the optimal layout of bars. The optimal layouts emerge from among all possible structural topologies, thus constituting unique designs being simultaneously light and stiff. The optimal structures turn out to be embedded in optimal vector fields covering the whole feasible domain. Key features include: a variationally consistent theory of bar systems, thin plates in bending and membrane shells; recapitulation of the theory of optimum design of trusses of minimum weight or of minimal compliance; the basis of 2D Michell theory for a single load case; kinematic and static approaches; 2D benchmark constructions including Hemp’s structures and optimal cantilevers; L-shape domain problems, three forces problem in 2D, bridge problems; revisiting the old - and delivering new - 3D benchmark solutions; extension to multiple load conditions; Prager-Rozvany grillages; the theory of funiculars and archgrids; the methods of optimum design of shape and material inspired by the theory of Michell structures, industrial applications. The book can be useful for graduate students, professional engineers and researchers specializing in the Optimum Design and in Topology Optimization in general.
Author: Aurélie Deschuyteneer
Publisher: Presses universitaires de Louvain
ISBN: 2875588923
Category : Science
Languages : en
Pages : 214
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Book Description
This thesis develops a new type of approach to structural robustness, working on geometrical considerations only. It allows the integration of constitutive dimensions of structural robustness at the earliest steps of the design process. Based on graphic statics and strut-and-tie modelling, the method develops a visual robustness indicator...
Author:
Publisher:
ISBN:
Category : Mechanics, Applied
Languages : en
Pages : 592
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Book Description
Author: B.H. Topping
Publisher: Springer Science & Business Media
ISBN: 9401724903
Category : Technology & Engineering
Languages : en
Pages : 656
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Book Description
This volume and its companion volume includes the edited versions of the principal lectures and selected papers presented at the NATO Advanced Study Institute on Optimization and Decision Support Systems in Civil Engineering. The Institute was held in the Department of Civil Engineering at Heriot-Watt University, Edinburgh from June 25th to July 6th 1989 and was attended by eighty participants from Universities and Research Institutes around the world. A number of practising civil and structural engineers also attended. The lectures and papers have been divided into two volumes to reflect the dual themes of the Institute namely Optimization and Decision Support Systems in Civil Engineering. Planning for this ASI commenced in late 1986 when Andrew Templeman and I discussed developments in the use of the systems approach in civil engineering. A little later it became clear that much of this approach could be realised through the use of knowledge-based systems and artificial intelligence techniques. Both Don Grierson and John Gero indicated at an early stage how important it would be to include knowledge-based systems within the scope of the Institute. The title of the Institute could have been: 'Civil Engineering Systems' as this would have reflected the range of systems applications to civil engineering problems considered by the Institute. These volumes therefore reflect the full range of these problems including: structural analysis and design; water resources engineering; geotechnical engineering; transportation and environmental engineering.
Author: G. A. R. Parke
Publisher: Thomas Telford
ISBN: 9780727719683
Category : Technology & Engineering
Languages : en
Pages : 1030
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Book Description
The diversity of constructions included in this publication on space structures ranges from anten reflectors and masts positioned in space, to equally exciting terrestrial structures, notably large-span domes, barrel vaults, multi-layered grids, cable and membrane systems, and pneumatic structures. This collection of more than two hundred and twenty papers, presented in to volumes, is the work of leading international experts for presentation at the Fourth International Conference on Space Structures. These two volumes contain a prodigious amount of original and innovative information on space structures that will be of especial interest to engineers, architects and other professionals engaged in the planning, design, fabrication and erection of novel constructions.
