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http://dx.doi.org/10.26748/KSOE.2019.001

Pseudo Mapping Method for Singular Integral of Curved Panels  

Lee, Ik-Jae (Department of Naval Architecture and Ocean Engineering, PNU)
Kwon, Sun-Hong (Department of Naval Architecture and Ocean Engineering, PNU)
Publication Information
Journal of Ocean Engineering and Technology / v.33, no.1, 2019 , pp. 17-25 More about this Journal
Abstract
A numerical method is suggested for evaluating the singular integral of curved panels in the higher-order boundary element method. Two-step mapping procedures that are significantly related to the physical properties of singular behaviors were developed and illustrated. As a result, the singular behaviors were significantly alleviated, and the efficiency and robustness of the present method for tangentially and axially deformed elements were proven. However, inaccuracies and numerical instabilities of twisted elements were discovered as a result of nonlinearities.
Keywords
Singular integral; Pseudo mapping method; Higher-order boundary element method;
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