Genetic crossover strategy using an approximation concept

2003 ◽  
Author(s):  
K.S. Anderson ◽  
YuHong Hsu
Keyword(s):  
Approximation Concept

On an outer approximation concept in global optimization

Optimization ◽  
1989 ◽  
Vol 20 (3) ◽  
pp. 255-264 ◽  
Author(s):  
R. Horst ◽  
Ng.V. Thoai ◽  
H. Tuy
Keyword(s):  
Global Optimization ◽  
Outer Approximation ◽  
Approximation Concept

Optimization of Multibody Systems Using Sequential Linear Programming

1994 ◽  
Author(s):  
L. F. P. Etman ◽  
E. J. R. W. Thijssen ◽  
A. J. G. Schoofs ◽  
D. H. van Campen
Keyword(s):  
Linear Programming ◽  
Structural Analysis ◽  
Design Optimization ◽  
Software Package ◽  
Multibody Systems ◽  
Sequential Linear Programming ◽  
Analysis Software ◽  
Design Problems ◽  
Linear Programming Problems ◽  
Approximation Concept

Abstract Design optimization is far less developed for multibody analysis than for structural analysis. However, multibody design problems can be solved by optimization strategies applied in structural analysis. To illustrate this, a design optimization tool has been developed for a multibody analysis software package. It is based on a linear approximation concept. An optimization process results that consists of a sequence of linear programming problems. The design optimization tool has been successfully tested for three multibody design examples.

scholarly journals The Fast Discrete Interaction Approximation Concept

2020 ◽  
Author(s):  
Vladislav Polnikov
Keyword(s):  
Numerical Calculation ◽  
World Wide ◽  
Wind Wave ◽  
Nonlinear Evolution ◽  
Wave Model ◽  
Discrete Interaction ◽  
Wave Models ◽  
Active Implementation ◽  
Interaction Approximation ◽  
Approximation Concept

Hasselmann and coauthors proposed the discrete interaction approximation (DIA) as the best tool replacing the nonlinear evolution term in a numerical wind-wave model. Much later, Polnikov and Farina radically improved the original DIA by means of location all the interacting four wave vectors, used in the DIA configuration, exactly at the nodes of the numerical frequency-angular grid. This provides nearly two-times enhancing the speed of numerical calculation for the nonlinear evolution term in a wind-wave model. For this reason, the proposed version of the DIA was called as the fast DIA (FDIA). In this paper we demonstrate all details of the FDIA concept for several frequency-angular numerical grids of high resolution, with the aim of active implementation the FDIA in modern versions of world-wide used wind-wave models.

scholarly journals The Fast Discrete Interaction Approximation Concept

Fluids ◽  
2020 ◽  
Vol 5 (4) ◽  
pp. 176
Author(s):  
Vladislav Polnikov
Keyword(s):  
Numerical Calculation ◽  
World Wide ◽  
Wind Wave ◽  
Nonlinear Evolution ◽  
Wave Model ◽  
Discrete Interaction ◽  
Wave Models ◽  
Active Implementation ◽  
Interaction Approximation ◽  
Approximation Concept

Hasselmann and coauthors proposed the discrete interaction approximation (DIA) as the best tool replacing the nonlinear evolution term in a numerical wind–wave model. Much later, Polnikov and Farina radically improved the original DIA by means of location all the interacting four wave vectors, used in the DIA configuration, exactly at the nodes of the numerical frequency–angular grid. This provides a nearly two-times enhancement of the speed of numerical calculation for the nonlinear evolution term in a wind–wave model. For this reason, the proposed version of the DIA was called as the fast DIA (FDIA). In this paper, we demonstrate all details of the FDIA concept for several frequency–angular numerical grids of high-resolution with the aim of active implementation of the FDIA in modern versions of world-wide used wind–wave models.

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