Makoto Ohsaki's Books

Optimization And Anti-optimization Of Structures Under Uncertainty

By: Isaac E Elishakoff,Makoto Ohsaki

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Optimization And Anti-optimization Of Structures Under Uncertainty

By: Isaac E Elishakoff,Makoto Ohsaki

The volume presents a collaboration between internationally recognized experts on anti-optimization and structural optimization, and summarizes various novel ideas, methodologies and results studied over 20 years. The book vividly demonstrates how the concept of uncertainty should be incorporated in a rigorous manner during the process of designing real-world structures. The necessity of anti-optimization approach is first demonstrated, then the anti-optimization techniques are applied to static, dynamic and buckling problems, thus covering the broadest possible set of applications. Finally, anti-optimization is fully utilized by a combination of structural optimization to produce the optimal design considering the worst-case scenario. This is currently the only book that covers the combination of optimization and anti-optimization. It shows how various optimization techniques are used in the novel anti-optimization technique, and how the structural optimization can be exponentially enhanced by incorporating the concept of worst-case scenario, thereby increasing the safety of the structures designed in various fields of engineering./a

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Page Count

425

Publisher

World Scientific

Published Date

ISBN 10

190897818X

ISBN 13

9781908978189

Stability and Optimization of Structures

Generalized Sensitivity Analysis

By: Makoto Ohsaki,Kiyohiro Ikeda

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Stability and Optimization of Structures

Generalized Sensitivity Analysis

By: Makoto Ohsaki,Kiyohiro Ikeda

This book focuses on the optimization of a geometrically-nonlinear structure under stability constraint. It presents a deep insight into optimization-based and computer-assisted stability design of discrete structures. Coverage combines design sensitivity analysis developed in structural optimization and imperfection-sensitivity analysis developed in stability analysis.

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Page Count

276

Publisher

Springer Science & Business Media

Published Date

ISBN 10

0387681841

ISBN 13

9780387681849

Stochastic Structural Optimization

By: Makoto Yamakawa,Makoto Ohsaki

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Stochastic Structural Optimization

By: Makoto Yamakawa,Makoto Ohsaki

Stochastic Structural Optimization presents a comprehensive picture of robust design optimization of structures, focused on nonparametric stochastic-based methodologies. Good practical structural design accounts for uncertainty, for which reliability-based design offers a standard approach, usually incorporating assumptions on probability functions which are often unknown. By comparison, a worst-case approach with bounded support used as a robust design offers simplicity and a lower level of sensitivity. Linking structural optimization with these two approaches by a unified framework of non-parametric stochastic methodologies provides a rigorous theoretical background and high level of practicality. This text shows how to use this theoretical framework in civil and mechanical engineering practice to design a safe structure which accounts for uncertainty. Connects theory with practice in the robust design optimization of structures Advanced enough to support sound practical designs This book provides comprehensive coverage for engineers and graduate students in civil and mechanical engineering. Makoto Yamakawa is a Professor at Tokyo University of Science, and a member of the Advisory Board of the 2020 Asian Congress of Structural and Multidisciplinary Optimization. Makoto Ohsaki is a Professor at Kyoto University, Japan, treasurer of the International Association for Shell & Spatial Structures and former President of the Asian Society for Structural and Multidisciplinary Optimization.

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Page Count

267

Publisher

CRC Press

Published Date

ISBN 10

1000912701

ISBN 13

9781000912708

Tensegrity Structures

Form, Stability, and Symmetry

By: Jing Yao Zhang,Makoto Ohsaki

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Tensegrity Structures

Form, Stability, and Symmetry

By: Jing Yao Zhang,Makoto Ohsaki

To facilitate a deeper understanding of tensegrity structures, this book focuses on their two key design problems: self-equilibrium analysis and stability investigation. In particular, high symmetry properties of the structures are extensively utilized. Conditions for self-equilibrium as well as super-stability of tensegrity structures are presented in detail. An analytical method and an efficient numerical method are given for self-equilibrium analysis of tensegrity structures: the analytical method deals with symmetric structures and the numerical method guarantees super-stability. Utilizing group representation theory, the text further provides analytical super-stability conditions for the structures that are of dihedral as well as tetrahedral symmetry. This book not only serves as a reference for engineers and scientists but is also a useful source for upper-level undergraduate and graduate students. Keeping this objective in mind, the presentation of the book is self-contained and detailed, with an abundance of figures and examples.

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Page Count

307

Publisher

Springer

Published Date

ISBN 10

4431548130

ISBN 13

9784431548133

Optimization of Finite Dimensional Structures

By: Makoto Ohsaki

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Optimization of Finite Dimensional Structures

By: Makoto Ohsaki

Originally developed for mechanical and aeronautical engineering, structural optimization is not so easily applied to civil and architectural engineering, as structures in these fields are not mass products, but more often unique structures planned in accordance with specific design requirements. The shape and geometry of such structures are determ

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