### Research on Development Algorithm for Doubly Curvature Hull Plates

CHEN Xingbu1,2;HU Yong1,2;HUANG Chaoyan1,2;WANG Yao3;WANG Jian3

1. 1.Key Laboratory of High Performance Ship Technology of Ministry of Education，Wuhan University of Technology，Wuhan，430063
2.School of Transportation,Wuhan University of Technology,Wuhan，430063
3.Jiangnan Shipyard(Group) Co.,Ltd.,Shanghai，201913
• Online:2020-04-25 Published:2020-06-11

### 复杂曲度船体外板展开算法研究

1. 1.武汉理工大学高性能船舶技术教育部重点实验室，武汉，430063
2.武汉理工大学交通学院，武汉，430063
3.江南造船（集团）有限责任公司，上海，201913
• 基金资助:
国家自然科学基金资助项目（51779200）；
国防基础科研重点资助项目（JCKY2019206B001）

Abstract: In order to develop hull plates with doubly curvature, a geometric development algorithm was improved considering the characteristics of line-heating processes and large thickness of ship hull plates. Using the idea of finite element, the surfaces were segmented into strips firstly, and then the strips were separated into triangle planes for devolopment and splicing. In view of the characteristics of large thickness of ship hull plates, the developing surfaces were shifted from the profile surfaces to the neutral layers before development; in view of the characteristics of line-heating processes, the overlapping parts between the strips were eliminated and the gap parts were reserved during the splicing of the strips, so that the expansion areas were increased to compensate for the shrinkage of line-heating processes. In order to realize the automatic development of ship hull plates, the software was developed. And the development accuracy of the software was tested and verified by comparion with the results of TRIBON software. The results show that the errors of all test boards are between 1.0 mm and 1.8 mm, and the maximum error is not more than 2 mm, which may meet the actual production requirements.

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