Vol.124, No.2, 2020, pp.627-642, doi:10.32604/cmes.2020.010341
OPEN ACCESS
ARTICLE
A High-Accuracy Single Patch Representation of Multi-Patch Geometries with Applications to Isogeometric Analysis
  • Jinlan Xu*, Ningning Sun, Gang Xu
School of Computer Science and Technology, Hangzhou Dianzi University, Hangzhou, 310018, China
* Corresponding Author: Jinlan Xu. Email: jlxu@hdu.edu.cn
(This article belongs to this Special Issue: Recent Developments of Isogeometric Analysis and its Applications in Structural Optimization)
Received 27 February 2020; Accepted 08 May 2020; Issue published 20 July 2020
Abstract
This paper presents a novel approximating method to construct highprecision single-patch representation of B-spline surface from a multi-patch representation for isogeometric applications. In isogeometric analysis, multi-patch structure is not easy to achieve high continuity between neighboring patches which will reduce the advantage of isogeometric analysis in a sense. The proposed method can achieve high continuity at surface stitching region with low geometric error, and this technique exploits constructing the approximate surface with several control points are from original surfaces, which guarantees the local feature of the surface can be well-preserved with high precision. With the proposed approximating method, isogeometric analysis results using the new single-patch can be obtained efficiently compared with the original multi-patch structure. Several examples are presented to illustrate the effectiveness, accuracy and efficiency of the proposed method.
Keywords
Isogeometric analysis; patch merging; multi-patch structure; computational efficiency
Cite This Article
Xu, J., Sun, N., Xu, G. (2020). A High-Accuracy Single Patch Representation of Multi-Patch Geometries with Applications to Isogeometric Analysis. CMES-Computer Modeling in Engineering & Sciences, 124(2), 627–642.
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