Sub-domain optimization of multi-domain structure constructed by reduced system based on the primary degrees of freedom

Kim, Hyungi; Cho, Maenghyo

doi:10.1016/j.finel.2007.06.012

Cited by 12 publications

(3 citation statements)

References 15 publications

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“…[18,19], which proposed a subdomain method of assembling a reduced system based on the PDOFs of each subdomain. The previous subdomain scheme alleviated the problem of a single domain reduction method.…”

Section: Resultsmentioning

confidence: 99%

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Efficient construction of a reduced system in multi-domain system with free subdomains

Kim

Cho

Kim

et al. 2011

Finite Elements in Analysis and Design

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Section: Resultsmentioning

confidence: 99%

“…In addition, this reduction method based on the subdomain has been used for a non-matching interface problem and structural optimization problem [19].…”

Section: Introductionmentioning

confidence: 99%

Efficient construction of a reduced system in multi-domain system with free subdomains

Kim

Cho

Kim

et al. 2011

Finite Elements in Analysis and Design

Self Cite

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“…Optimization based on approximate or reduced models has received a lot of attention (Kim and Cho 2007, Forrester and Keane 2009, Wang et al 2011) and the purpose of these approaches is to obtain a high-fidelity model optimization result without high computational cost. In this article, the reduction of structural nodal DoFs is carried out using the localized base vectors, which remain nearly constant as the design changes.…”

Section: Introductionmentioning

confidence: 99%

Fast dynamic performance optimization of complicated beam-type structures based on two new reduced physical models

Wang

Cheng

2013

Engineering Optimization

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In this article, two new model reduction methods for fast dynamic performance optimization of complicated beam-type structures are presented. In the new model reduction methods the projection of structural nodal degrees of freedom is carried out using the localized base vectors, which are obtained by physical hypothesis. The first new model reduction method constructs the base vectors based on the assumption of block-wise rigid body motion modified by minimizing the displacement error measured in strain energy. The second new model reduction method is based on the plane cross-section assumption, and the crosssectional warp deformation is also taken into consideration. Then, two reduced optimization models based on each method and design variable decomposition are formulated and solved. Both reduced optimization models are compared with the response surface method-based structural optimization approach. Some examples are presented to demonstrate the feasibility and effectiveness of the proposed methods.

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Effective structural optimization based on equivalent static loads combined with system reduction method

Kim

Baek

et al. 2014

Struct Multidisc Optim

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Sub-domain optimization of multi-domain structure constructed by reduced system based on the primary degrees of freedom

Cited by 12 publications

References 15 publications

Efficient construction of a reduced system in multi-domain system with free subdomains

Efficient construction of a reduced system in multi-domain system with free subdomains

Fast dynamic performance optimization of complicated beam-type structures based on two new reduced physical models

Effective structural optimization based on equivalent static loads combined with system reduction method

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