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- Publisher Website: 10.1016/j.jobe.2021.103827
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Article: Simplified quadrilateral grid generation of complex free-form gridshells by surface fitting
| Title | Simplified quadrilateral grid generation of complex free-form gridshells by surface fitting |
|---|---|
| Authors | |
| Keywords | Chebyshev net Complex free-form surface Geodesics Non-uniform rational B-Splines Surface fitting |
| Issue Date | 1-May-2022 |
| Publisher | Elsevier |
| Citation | Journal of Building Engineering, 2022, v. 48 How to Cite? |
| Abstract | In this paper, a quadrilateral grid generation algorithm based on surface fitting is proposed for complex free-form surfaces. The ray-surface intersection and plane-surfce intersection methods are proposed to fit complex free-form surfaces into one free-form surface. Based on the fitted surface, quadrilateral grids were generated by using the geodesics or the Chebyshev algorithm. The grids were then smoothed by a physics-based algorithm. The grid quality was evaluated by fluency, shape quality and rod length indices. Compared with the conventional method in which grids are separately generated and manually modified, the fluency index and the standard deviation of the rod length index of the grids generated by the proposed methods reduce by up to 87% and 94% respectively. The results show that the grids generated by the proposed methods are more fluent and uniform compared with those by the conventional method. |
| Persistent Identifier | http://hdl.handle.net/10722/347211 |
| ISSN | 2023 Impact Factor: 6.7 2023 SCImago Journal Rankings: 1.397 |
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Chen, Lijie | - |
| dc.date.accessioned | 2024-09-20T00:30:38Z | - |
| dc.date.available | 2024-09-20T00:30:38Z | - |
| dc.date.issued | 2022-05-01 | - |
| dc.identifier.citation | Journal of Building Engineering, 2022, v. 48 | - |
| dc.identifier.issn | 2352-7102 | - |
| dc.identifier.uri | http://hdl.handle.net/10722/347211 | - |
| dc.description.abstract | <p>In this paper, a quadrilateral <a href="https://www.sciencedirect.com/topics/engineering/grid-generation" title="Learn more about grid generation from ScienceDirect's AI-generated Topic Pages">grid generation</a> algorithm based on surface fitting is proposed for complex free-form surfaces. The ray-surface intersection and plane-surfce intersection methods are proposed to fit complex free-form surfaces into one free-form surface. Based on the fitted surface, quadrilateral grids were generated by using the geodesics or the Chebyshev algorithm. The grids were then smoothed by a physics-based algorithm. The grid quality was evaluated by fluency, shape quality and rod length indices. Compared with the conventional method in which grids are separately generated and manually modified, the fluency index and the standard deviation of the rod length index of the grids generated by the proposed methods reduce by up to 87% and 94% respectively. The results show that the grids generated by the proposed methods are more fluent and uniform compared with those by the conventional method.<br></p> | - |
| dc.language | eng | - |
| dc.publisher | Elsevier | - |
| dc.relation.ispartof | Journal of Building Engineering | - |
| dc.rights | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. | - |
| dc.subject | Chebyshev net | - |
| dc.subject | Complex free-form surface | - |
| dc.subject | Geodesics | - |
| dc.subject | Non-uniform rational B-Splines | - |
| dc.subject | Surface fitting | - |
| dc.title | Simplified quadrilateral grid generation of complex free-form gridshells by surface fitting | - |
| dc.type | Article | - |
| dc.identifier.doi | 10.1016/j.jobe.2021.103827 | - |
| dc.identifier.scopus | eid_2-s2.0-85121612439 | - |
| dc.identifier.volume | 48 | - |
| dc.identifier.eissn | 2352-7102 | - |
| dc.identifier.issnl | 2352-7102 | - |