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Gradientless shape optimization using artificial neural networks

delete2009-11-12
delete11
PRE
AI
K
K. K. Pathak *
D
D. K. Sehgal
DOI:10.1007/s00158-009-0448-3delete
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Abstract

Abstract

En 中文
In this paper a new zero order method of structural shape optimization, in which material shrinks or grows perpendicular to the design boundary, has been proposed in order to satisfy fully stressed design criteria. To avoid mesh distortion that results in undesirable shape, design element concept and for nodal movement and convergence checking, fuzzy set theory have been used. To accelerate the convergence, artificial neural networks are employed. The proposed approach, named as GSN technique, has been incorporated in a FORTRAN software GSOANN. Using this software shape optimization of four structures are carried out. It is demonstrated that proposed technique overcomes most of the shortcomings of mundane zero order methods.
Keywords:
Shape optimization
Finite element
Neural network
Fuzzy set
Design element
Zero order method

Journal

Structural and Multidisciplinary Optimization cover
Structural and Multidisciplinary Optimization
IF:
4
Papers:
4.9K
Citations:
1.7W

Organization

C
council of scientific & industrial research (csir) - india
Scholars:
4.7W
Papers: 3.9W
Citations: 37
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