Advanced IGA Mesh Generation and Application to Structural Vibrations

Elizaveta Wobbes, Yuri Bazilevs, Takashi Kuraishi, Yuto Otoguro, Kenji Takizawa, Tayfun E. Tezduyar

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

5 Citations (Scopus)

Abstract

In this chapter, we present a workflow for Isogeometric Analysis (IGA) that incorporates an advanced mesh generation method Otoguro et al. (Comput Fluids 158:189–200, 2017). The process is flexible and can be easily adjusted to accommodate challenging applications in computational mechanics. In addition, IGA is compared to the finite element (FE) method in terms of accuracy per degree-of-freedom in structural vibrations. The results obtained demonstrate that the use of NURBS meshes leads to faster convergence and higher accuracy compared to linear and quadratic FE meshes. A clearly defined workflow for mesh generation and significant advantages of IGA over FE in terms of per-degree-of-freedom accuracy make IGA more accessible, reliable, and attractive in applications of both academic and industrial interest. We note that the accuracy of a structural mechanics discretization, which may be assessed through eigenfrequency analysis, plays an important role in the overall accuracy of fluid–structure interaction computations.

Original languageEnglish
Title of host publicationModeling and Simulation in Science, Engineering and Technology
PublisherBirkhauser
Pages513-531
Number of pages19
DOIs
Publication statusPublished - 2023

Publication series

NameModeling and Simulation in Science, Engineering and Technology
VolumePart F1665
ISSN (Print)2164-3679
ISSN (Electronic)2164-3725

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