{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T02:53:13Z","timestamp":1760237593672,"version":"build-2065373602"},"reference-count":24,"publisher":"MDPI AG","issue":"6","license":[{"start":{"date-parts":[[2020,6,9]],"date-time":"2020-06-09T00:00:00Z","timestamp":1591660800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["11602082"],"award-info":[{"award-number":["11602082"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"name":"the Research and Development Planning Projects in Key Areas of Hunan Province,China","award":["2019SK2174"],"award-info":[{"award-number":["2019SK2174"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Symmetry"],"abstract":"<jats:p>This paper is devoted to developing a new computational method for nearly singular integral computation in the application of the boundary element method for the analysis of thin-shell-like structures in mechanical engineering. Based on the traditional distance transformation method, a sigmoidal transformation method is introduced to further cluster the integral points around the source point with respect to the circumferential direction. The combined method provides accurate results without employing a large quantity of integral points. Numerical examples demonstrate that the computational accuracy and efficiency of the proposed method is significantly higher than that of the traditional single distance transformation method, especially in the case of the asymmetric integral patch.<\/jats:p>","DOI":"10.3390\/sym12060983","type":"journal-article","created":{"date-parts":[[2020,6,9]],"date-time":"2020-06-09T06:34:16Z","timestamp":1591684456000},"page":"983","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["A Sigmoidal and Distance Combined Transformation Method for Nearly Singular Integral on Asymmetric Patch"],"prefix":"10.3390","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7096-2614","authenticated-orcid":false,"given":"Jianghong","family":"Yu","sequence":"first","affiliation":[{"name":"MOE Key Laboratory of Highway Engineering, Changsha University of Science and Technology, Changsha 410004, China"},{"name":"School of Mechanical Engineering, Hunan University of Technology, Zhuzhou 412007, China"}]},{"given":"Zhengbao","family":"Lei","sequence":"additional","affiliation":[{"name":"MOE Key Laboratory of Highway Engineering, Changsha University of Science and Technology, Changsha 410004, China"}]},{"given":"Qishui","family":"Yao","sequence":"additional","affiliation":[{"name":"School of Mechanical Engineering, Hunan University of Technology, Zhuzhou 412007, China"}]},{"given":"Fenglin","family":"Zhou","sequence":"additional","affiliation":[{"name":"School of Mechanical Engineering, Hunan University of Technology, Zhuzhou 412007, China"}]}],"member":"1968","published-online":{"date-parts":[[2020,6,9]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1247","DOI":"10.1121\/1.427158","article-title":"A unified boundary element method for the analysis of sound and shell-like structure interactions. 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