Author:
Publisher:
ISBN:
Category : Differential equations, Nonlinear
Languages : ru
Pages : 412

View

Book Description

Author: Antoni Gajewski
Publisher: Springer Science & Business Media
ISBN: 9400927541
Category : Science
Languages : en
Pages : 480

View

Book Description
The first optimal design problem for an elastic column subject to buckling was formulated by Lagrange over 200 years ago. However, rapid development of structural optimization under stability constraints occurred only in the last twenty years. In numerous optimal structural design problems the stability phenomenon becomes one of the most important factors, particularly for slender and thin-walled elements of aerospace structures, ships, precision machines, tall buildings etc. In engineering practice stability constraints appear more often than it might be expected; even when designing a simple beam of constant width and variable depth, the width - if regarded as a design variable - is finally determined by a stability constraint (lateral stability). Mathematically, optimal structural design under stability constraints usually leads to optimization with respect to eigenvalues, but some cases fall even beyond this type of problems. A total of over 70 books has been devoted to structural optimization as yet, but none of them has treated stability constraints in a sufficiently broad and comprehensive manner. The purpose of the present book is to fill this gap. The contents include a discussion of the basic structural stability and structural optimization problems and the pertinent solution methods, followed by a systematic review of solutions obtained for columns, arches, bar systems, plates, shells and thin-walled bars. A unified approach based on Pontryagin's maximum principle is employed inasmuch as possible, at least to problems of columns, arches and plates. Parametric optimization is discussed as well.

Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 888

View

Book Description

Author: Rózsa Péter
Publisher:
ISBN:
Category : Recursive functions
Languages : en
Pages : 308

View

Book Description

Author: Kurt Marti
Publisher: Springer
ISBN: 3662462141
Category : Business & Economics
Languages : en
Pages : 389

View

Book Description
This book examines optimization problems that in practice involve random model parameters. It details the computation of robust optimal solutions, i.e., optimal solutions that are insensitive with respect to random parameter variations, where appropriate deterministic substitute problems are needed. Based on the probability distribution of the random data and using decision theoretical concepts, optimization problems under stochastic uncertainty are converted into appropriate deterministic substitute problems. Due to the probabilities and expectations involved, the book also shows how to apply approximative solution techniques. Several deterministic and stochastic approximation methods are provided: Taylor expansion methods, regression and response surface methods (RSM), probability inequalities, multiple linearization of survival/failure domains, discretization methods, convex approximation/deterministic descent directions/efficient points, stochastic approximation and gradient procedures and differentiation formulas for probabilities and expectations. In the third edition, this book further develops stochastic optimization methods. In particular, it now shows how to apply stochastic optimization methods to the approximate solution of important concrete problems arising in engineering, economics and operations research.

Author: Junbo Jia
Publisher: CRC Press
ISBN: 1351646214
Category : Science
Languages : en
Pages : 421

View

Book Description
Engineering dynamics and vibrations has become an essential topic for ensuring structural integrity and operational functionality in different engineering areas. However, practical problems regarding dynamics and vibrations are in many cases handled without success despite large expenditures. This book covers a wide range of topics from the basics to advances in dynamics and vibrations; from relevant engineering challenges to the solutions; from engineering failures due to inappropriate accounting of dynamics to mitigation measures and utilization of dynamics. It lays emphasis on engineering applications utilizing state-of-the-art information.

Author: Joachim Steigenberger
Publisher: Walter de Gruyter
ISBN: 3486719874
Category : Technology & Engineering
Languages : en
Pages : 207

View

Book Description
The book in hand grew out of the authors' current research and their long-continued experience in teaching mathematics and mechanics. In a wide sense, it aims at mathematical modeling of mechanical objects and their exploitation. This is done in a bit unconventional way by concentrating on the special object class worm-like locomotion systems and in proceeding with no use of recent sophisticated mathematical tools which most likely cannot be handled by freshmen in engineering or mathematics. Nevertheless, this does not harm the stringent line the physical object to the analytical interpretation of the final mathematical model. The basic model spiked worm in a straight line enables the authors to come up with a fairly self-contained theory which then allows one to study effects of friction and control. The considered system class has its importance in practice (motion in narrow canals, e.g.), but this book is not with an orientation to design and application, the theory developed here should rather be seen as a contribution to bionics.

Author: Risto Arho
Publisher:
ISBN: 9789516660168
Category : Calculus of variations
Languages : en
Pages : 15

View

Book Description

Author: Charles A. Wilkie
Publisher: CRC Press
ISBN: 1040035256
Category : Law
Languages : en
Pages : 800

View

Book Description
The third edition of Fire Retardancy of Polymeric Materials provides a single source for all aspects of this highly challenging field of applied research. This authoritative book covers design and non-fire requirements that drive how these materials are fire protected. Detailed study and consideration of chemistry, physics, materials science, economic issues and fire safety science is necessary to address considerations of mechanical, thermal, environmental, and end-use requirements on top of fire protection means that the field requires. This thoroughly revised new edition continues to offer comprehensive coverage of the scientific approach for those developing fire safe materials. It covers new topics such as bio-based materials, regulatory issues, recycling, newer flame retardant chemical classes, and more details on how to flame retard materials for specific market applications. Written by a team of experts, this book covers the fundamentals of polymer burning and combustion and how to apply fire protection or flame-retardant chemistries to specific material classes and applications. The book is written for material scientists and fire safety scientists who seek to develop new fire safe materials or understand why materials burn in our modern environment. Features Connects fundamentals of material flammability to practical fire safety needs Covers current fire safety requirements and regulations affecting flame retardant selection Provides information on chemical structure-property relationships for flame retardancy Provides practical guidance on how to design fire safe materials for specific fire risk scenarios The new edition is expanded to 32 chapters and all chapters are updated and revised with the newest information

Author: Arthur Zajonc
Publisher: Oxford University Press, USA
ISBN: 9780195095753
Category : Body, Mind & Spirit
Languages : en
Pages : 408

View

Book Description
Examination of the fundamental nature of light in mankind's history, world, and life.