期刊论文

Zhong, Yudong;Du, Wenliao;Feng, Shizhe

英文

Engineering Analysis with Boundary Elements

0955-7997

2020

118

54-59

10.1016/j.enganabound.2020.05.015

This work was partly supported by the National Natural Science Foundation of China (11602229, 11902141 and U1804141), and partly supported by key scientific and technological project of Henan Province (192102210227), partly by the Scientific and Technological Innovation Team of Colleges and Universities in Henan Province in 2020 (20IRTSTHN015), and partly by the Key Discipline Laboratory Foundation of Noise and Vibration Control of Ship Equipment at Shanghai Jiao Tong University (VSN201903).

本校为其他机构

This paper focuses on near singularity in weakly singular integrals of three-dimensional boundary element method. In traditional methods, only one directional transformation is introduced to remove the weak singularity. However, near singularity is still existed. Thus in our paper, serval methods for removal of weak singularity are introduced firstly. Then, angular and sigmoidal transformations are introduced to remove the near singularity in the circumferential direction combined with polar transformation. Generalized Duffy transformation is i...