Download or read book Foundations of Aeroelastic Optimization and Some Applications to Continuous Systems written by Jean-Louis Armand and published by . This book was released on 1970 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: Various optimization problems will be presented here, applications of the general methods developed in optimum control theory (Refs. 3,10,11,12) and based on the Hamiltonian formulation of variational calculus for structural optimization with aeroelastic constraints. The problem, common for all the applications, may be stated in a general form: given a reference structure (cantilever beam or two-dimensional plate) with uniform structural properties and specified aeroelastic requirements (such as a given divergence speed or flutter speed), find the structure with minimal weight satisfying the same requirements. This report will be divided into two parts, the first one dealing with static, the second one with dynamic aeroelastic problems (and more precisely flutter problems). This division is not arbitrary, since two out of the three problems of Part A will be found to have a simple analytical solution confirmed by numerical methods, whereas we have to rely on numerical integration mainly in Part B, the torsional-flutter case being excepted. A very powerful numerical procedure, the transition-matrix algorithm, will be described in detail and applied wherever possible. Its limitations in the more complicated case of panel flutter are emphasized. (Author).
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Optimization in Structural Design written by A. Sawczuk and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 601 pages. Available in PDF, EPUB and Kindle. Book excerpt: Structural optimization, a broad interdisciplinary field, requires skillful combining of mathematical and mechanical knowledge with engineering. It is both intellectually attractive and technologically rewarding. The Symposium on Optimization in Structural Design was the second IUTAM Symposium in Poland. Fifteen years have elapsed since the Symposium on Nonhomogeneity in Elasticity and Plasticity, presided by Professor Olszak, was held in Warsaw. These fifteen years mean a lot for mechanics in Poland. Continuing the tradition of Professor Maksymilian Tytus Huber's research, considerable development of the mechanical sciences has been achieved in this country mostly due to the knowledge, vision and persistence of Professors Wit old Nowacki and Waclaw Olszak, eminent Members of our Academy. The Institute of Fundamental Technological Research was established, competent research groups grew, matured and contri buted to thermo-elasticity, plasticity, general theory of constitutive equations, and to structural mechanics-just to mention a few do mains. Mechanics is now penetrating into the technology of this country at an accelerating pace. The optimization in mechanics has a tradition in Poland. In 1936 Professor Zbigniew Wasiutynski formulated the optimality criterion for mean stiffness design using an elastic energy concept. Further work in this field has been done since, mostly in the last ten years. On behalf of the Committee for Mechanics of the Polish Academy of Sciences I wish to thank the IUTA1V[ Bureau for the decision to hold in Warsaw the Symposium the present volume contains the contribu tions to.
Download or read book Journal of Aircraft written by and published by . This book was released on 1999 with total page 636 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book RAIRO written by and published by . This book was released on 1978 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Problems and Methods of Optimal Structural Design written by Nikolai Vladimirovich Banichuk and published by Springer Science & Business Media. This book was released on 2013-03-13 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: The author offers a systematic and careful development of many aspects of structural optimization, particularly for beams and plates. Some of the results are new and some have appeared only in specialized Soviet journals, or as pro ceedings of conferences, and are not easily accessible to Western engineers and mathematicians. Some aspects of the theory presented here, such as optimiza tion of anisotropic properties of elastic structural elements, have not been con sidered to any extent by Western research engineers. The author's treatment is "classical", i.e., employing classical analysis. Classical calculus of variations, the complex variables approach, and the Kolosov Muskhelishvili theory are the basic techniques used. He derives many results that are of interest to practical structural engineers, such as optimum designs of structural elements submerged in a flowing fluid (which is of obvious interest in aircraft design, in ship building, in designing turbines, etc.). Optimization with incomplete information concerning the loads (which is the case in a great majority of practical design considerations) is treated thoroughly. For example, one can only estimate the weight of the traffic on a bridge, the wind load, the additional loads if a river floods, or possible earthquake loads.
Download or read book Optimal Structural Design under Stability Constraints written by Antoni Gajewski and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Fundamentals of Aeroelasticity written by Massimo Gennaretti and published by Springer Nature. This book was released on with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Structural Optimization Symposium written by Lucien André Schmit and published by . This book was released on 1974 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book AGARD Conference Proceedings written by North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development and published by . This book was released on 1973 with total page 1232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Unsteady Gas Dynamics Problems and Aeroelastic Applications Related to Flight Vehicles written by Stanford University. Department of Aeronautics and Astronautics and published by . This book was released on 1973 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aeronautical Engineering written by and published by . This book was released on 1989 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt: A selection of annotated references to unclassified reports and journal articles that were introduced into the NASA scientific and technical information system and announced in Scientific and technical aerospace reports (STAR) and International aerospace abstracts (IAA).
Download or read book A Collection of Technical Papers written by and published by . This book was released on 1981 with total page 1114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Stability written by Hans Ziegler and published by Waterloo, Ont.: Solid Mechanics Division, University of Waterloo. This book was released on 1972 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Structural Optimization written by Ovadia E. Lev and published by . This book was released on 1981 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Israel Journal of Technology written by and published by . This book was released on 1986 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes proceedings of various meetings and conferences.
Download or read book U S Government Research Development Reports written by and published by . This book was released on 1970 with total page 710 pages. Available in PDF, EPUB and Kindle. Book excerpt:
