STRUCTURAL SHAPE OPTIMIZATION BY ISOGEOMETRIC BOUNDARY ELEMENT METHOD
In Isogeometric boundary element method（IGA-BEM）, Non-Uniform Rational B-Splines（NURBS） which are used for describing the geometric boundary in a computer-aided geometric design（CAGD） are employed as shape functions of Boundary Element Method. IGA-BEM not only can accurately describe the geometric b...
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Editorial Office of Journal of Mechanical Strength
2019-01-01
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| Series: | Jixie qiangdu |
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| Online Access: | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2019.02.017 |
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| author | SUN ShaoHui YIN ShuoHui |
| author_facet | SUN ShaoHui YIN ShuoHui |
| author_sort | SUN ShaoHui |
| collection | DOAJ |
| description | In Isogeometric boundary element method（IGA-BEM）, Non-Uniform Rational B-Splines（NURBS） which are used for describing the geometric boundary in a computer-aided geometric design（CAGD） are employed as shape functions of Boundary Element Method. IGA-BEM not only can accurately describe the geometric boundary, but also unify the design model, analysis model and optimization model, so it can avoid the repeated meshing and mesh distortion problems in the optimization process and it also can improve the efficiency of the design, calculation and optimization. In this article IGA-BEM is combined with particle swarm optimization（PSO） to study the shape optimization of two-dimensional linear elastic structure. Compared with the gradient-based optimization algorithms, gradient-free PSO algorithm can avoid the complicated sensitivity analysis process and make the optimization process easier. The efficiency and accuracy of the combined isogeometric boundary element method-PSO are demonstrated through two shape optimization examples. |
| format | Article |
| id | doaj-art-1d0e64bc6c964b0f8703d974174ec863 |
| institution | Kabale University |
| issn | 1001-9669 |
| language | zho |
| publishDate | 2019-01-01 |
| publisher | Editorial Office of Journal of Mechanical Strength |
| record_format | Article |
| series | Jixie qiangdu |
| spelling | doaj-art-1d0e64bc6c964b0f8703d974174ec8632025-01-15T02:30:27ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692019-01-014136336830604589STRUCTURAL SHAPE OPTIMIZATION BY ISOGEOMETRIC BOUNDARY ELEMENT METHODSUN ShaoHuiYIN ShuoHuiIn Isogeometric boundary element method（IGA-BEM）, Non-Uniform Rational B-Splines（NURBS） which are used for describing the geometric boundary in a computer-aided geometric design（CAGD） are employed as shape functions of Boundary Element Method. IGA-BEM not only can accurately describe the geometric boundary, but also unify the design model, analysis model and optimization model, so it can avoid the repeated meshing and mesh distortion problems in the optimization process and it also can improve the efficiency of the design, calculation and optimization. In this article IGA-BEM is combined with particle swarm optimization（PSO） to study the shape optimization of two-dimensional linear elastic structure. Compared with the gradient-based optimization algorithms, gradient-free PSO algorithm can avoid the complicated sensitivity analysis process and make the optimization process easier. The efficiency and accuracy of the combined isogeometric boundary element method-PSO are demonstrated through two shape optimization examples.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2019.02.017Shape optimizationNon-uniform rational B-splines（NURBS）Isogeometric analysisBoundary element methodParticle swarm optimization algorithm |
| spellingShingle | SUN ShaoHui YIN ShuoHui STRUCTURAL SHAPE OPTIMIZATION BY ISOGEOMETRIC BOUNDARY ELEMENT METHOD Jixie qiangdu Shape optimization Non-uniform rational B-splines（NURBS） Isogeometric analysis Boundary element method Particle swarm optimization algorithm |
| title | STRUCTURAL SHAPE OPTIMIZATION BY ISOGEOMETRIC BOUNDARY ELEMENT METHOD |
| title_full | STRUCTURAL SHAPE OPTIMIZATION BY ISOGEOMETRIC BOUNDARY ELEMENT METHOD |
| title_fullStr | STRUCTURAL SHAPE OPTIMIZATION BY ISOGEOMETRIC BOUNDARY ELEMENT METHOD |
| title_full_unstemmed | STRUCTURAL SHAPE OPTIMIZATION BY ISOGEOMETRIC BOUNDARY ELEMENT METHOD |
| title_short | STRUCTURAL SHAPE OPTIMIZATION BY ISOGEOMETRIC BOUNDARY ELEMENT METHOD |
| title_sort | structural shape optimization by isogeometric boundary element method |
| topic | Shape optimization Non-uniform rational B-splines（NURBS） Isogeometric analysis Boundary element method Particle swarm optimization algorithm |
| url | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2019.02.017 |
| work_keys_str_mv | AT sunshaohui structuralshapeoptimizationbyisogeometricboundaryelementmethod AT yinshuohui structuralshapeoptimizationbyisogeometricboundaryelementmethod |