| 液舱晃荡载荷计算与强度校核系统研究 |
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| 引用本文： | 赵吉,许一敏,程成,冷文浩.液舱晃荡载荷计算与强度校核系统研究[J].海洋工程,2015,33(5):1-9. |
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| 作者姓名： | 赵吉 许一敏 程成 冷文浩 |
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| 作者单位： | 1. 无锡环境科学与工程研究中心，江苏无锡 214000；3. 江南大学 物联网工程学院，江苏无锡214122;中国船舶科学研究中心，无锡 214082;中国船舶科学研究中心，无锡 214082;中国船舶科学研究中心，无锡 214082 |
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| 基金项目： | 国家自然科学基金资助项目(61300149)；江苏省青蓝工程资助项目(2012 16)；无锡市教育科学“十二五”规划J/D/2014/019；无锡环境科学与工程研究中心科研启动项目 |
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| 摘 要： | 随着薄膜型LNG运输船的需求量不断增加,晃荡载荷已成为船舶安全性研究的重要内容之一。本文结合中国船级社规范所推荐的公式,对薄膜型LNG船晃荡水平的载荷进行研究,提出载荷计算方法和流程,在MSC.patran的基础上结合二次开发语言PCL,设计了一套晃荡载荷计算与校核系统。该系统对有限元模型进行前后处理,设计了舱室识别算法来搜索晃荡载荷的作用域,实现薄膜型LNG船晃荡载荷的自动计算与施加,完成屈服强度评估。通过算例测试证明本系统自动计算结果的有效性和准确性,可以为工程设计人员大大节约工作量,大幅度提高工作效率。
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| 关 键 词： | 船舶 有限元分析 舱室识别 晃荡载荷 PCL 屈服强度 |
Study on a load calculation and strength assessment system for sloshing in liquid tank |
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| ZHAO Ji,XU Yimin,CHENG Cheng and LENG Wenhao.Study on a load calculation and strength assessment system for sloshing in liquid tank[J].Ocean Engineering,2015,33(5):1-9. |
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| Authors: | ZHAO Ji XU Yimin CHENG Cheng and LENG Wenhao |
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| Institution: | 1. Research Centre of Environment Science & Engineering, Wuxi 214063, China; 3. School of IoT Engineering, Jiangnan University, Wuxi 214122, China;China Ship Scientific Research Center, Wuxi 214082, China;China Ship Scientific Research Center, Wuxi 214082, China;China Ship Scientific Research Center, Wuxi 214082, China |
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| Abstract: | With the increasing demand for LNG carriers, sloshing loads have become an important part of safety research for the ship. The authors have studied the sloshing level loads of membrane LNG, sorted out the loads calculation method and process with the calculation formulas used in the article, and designed a calculation and Check system of sloshing loads based on the secondary development of PCL in MSC.patran, which realized the finite element model (FEM) pre-postprocessor, searched the sloshing loads fields by cabin recognition, calculation and applying of the sloshing loads of membrane LNG, and achieved yield strength assessment. The numerical example tests prove that this system is effective and accurate for automatic calculation, which can greatly save the workload for engineering design and greatly improve the work efficiency. |
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| Keywords: | ship FEM analysis cabin recognition sloshing loads PCL yield strength |
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