摘要
目的提出船舶模型中趾端结构的CAE理想化方法,提高船舶有限元前处理中趾端简化的效率。方法采用三维八叉树搜索算法,建立三维趾端与相邻空间船舶结构的空间位置关系,筛选需要简化的趾端结构,根据趾端简化规则进行处理。结果基于NX11.0平台,开发出趾端结构理想化功能,实现趾端结构CAE理想化处理的自动化过程,并使用实际船型测试,处理结果满足有限元网格划分质量要求。结论该方法能准确、高效地实现趾端结构自动理想化处理。
The paper aims to propose a CAE idealization method for ship bracket toe structure to improve the efficiency of bracket toe simplification in finite element pre-processing of ship. The 3 D octree search algorithm was applied to establish the spatial relationship between 3 D bracket toe and nearby ship structures within its surrounding space, and the bracket toes that need to be simplified were filtered and simplified according to the rule of bracket toe simplification. Based on the NX11.0 platform, the program of bracket toe idealization was developed, which can automatically complete idealization of bracket toe structure. It was tested with real ship models and the result met the quality requirement of finite element meshing.The method proposed in this paper can complete automatic idealization of bracket toe structure with high accuracy and high efficiency.
作者
陈泽
陈有芳
王丽荣
章志兵
柳玉起
闫卫京
CHEN Ze;CHEN You-fang;WANG Li-rong;ZHANG Zhi-bing;LIU Yu-qi;YAN Wei-jing(School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China;Technology R & D Center of China Classification Society, Beijing 100007, China;The 722th Research Institute of CSIC, Wuhan 430079, China)
出处
《精密成形工程》
2019年第3期150-154,共5页
Journal of Netshape Forming Engineering
基金
国家自然科学基金(51609089)
关键词
NX
船舶设计
趾端
模型理想化
有限元建模
NX
ship design
bracket toe
model idealization
finite element modeling
