Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Evin J. Cramer"'
Autor:
Evin J. Cramer, John T. Betts
Publikováno v:
Journal of Guidance, Control, and Dynamics. 18:151-159
One of the most effective numerical techniques for the solution of trajectory optimization and optimal control problems is the direct transcription method. This approach combines a nonlinear programming algorithm with a discretization of the trajecto
Publikováno v:
12th AIAA Aviation Technology, Integration, and Operations (ATIO) Conference and 14th AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference.
Solving multi-objective optimization problems that involve computationally expensive functions is a normal part of many engineering applications. Runtime issues are magnied when one moves from a single discipline to multiple disciplines in a multidis
Publikováno v:
SIAM Journal on Optimization. 4:754-776
This paper is about multidisciplinary (design) optimization, or MDO, the coupling of two or more analysis disciplines with numerical optimization.The paper has three goals. First, it is an expository introduction to MDO aimed at those who do research
Publikováno v:
Optimization and Engineering. 10
This paper presents several formulations and comparative test results for problems involving the general paradigm of coupled sets of components (CSoC). This paradigm is general enough to include systems of systems (SoS) under any of the various defin
Publikováno v:
15th AIAA International Space Planes and Hypersonic Systems and Technologies Conference.
Publikováno v:
48th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference.
An emerging need in industry is to do simulation based designs with several hundred design variables. Our current approach, as implemented in Design Explorer, is not practical for problems of this size. This paper explains these limitations and prese
Publikováno v:
SMC
The purpose of this paper is to formulate mathematical definitions for key concepts in the area of systems of systems, and to do this in a way that alternative formulations with associated algorithmic advantages might be revealed. The first step to a
Publikováno v:
44th AIAA Aerospace Sciences Meeting and Exhibit.
Autor:
J. M. Gablonsky, Evin J. Cramer
Publikováno v:
10th AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference.
Computer simulations are an integral part of many of today’s design processes. This paper describes a method for design exploration and optimization that is flrstly mathematically suitable for functions calculated with complex computer simulations
Autor:
Evin J. Cramer
Publikováno v:
7th AIAA/USAF/NASA/ISSMO Symposium on Multidisciplinary Analysis and Optimization.
Engineers and designers use complicated computer simulations to model physical phenomenon. They evaluate many designs as they search for the best design. Because the definition of "best" changes during the design process, they have to evaluate even m