总纵弯曲下舰船上层建筑结构强度钢模试验

刘俊杰; 丁震; 马琳; 卞鑫; 李政杰

doi:10.19693/j.issn.1673-3185.02240

总纵弯曲下舰船上层建筑结构强度钢模试验

doi: 10.19693/j.issn.1673-3185.02240

1.
中国船舶科学研究中心，江苏无锡 214082
2.
中国舰船研究设计中心，上海 201108

基金项目: 高技术船舶科研资助项目（工信部联装函[2016]25号）

详细信息

作者简介:
刘俊杰，男，1978年生，博士，研究员

丁震，男，1983年生

马琳，男，1980年生，硕士，高级工程师

卞鑫，男，1989年生，硕士，工程师

李政杰，男，1986年生，硕士，高级工程师

通信作者:
刘俊杰

中图分类号: U661.43
计量
- 文章访问数: 472
- HTML全文浏览量: 219
- PDF下载量: 55
- 被引次数: 0
出版历程
- 收稿日期: 2020-12-24
- 修回日期: 2021-03-26
- 网络出版日期: 2022-04-01
- 刊出日期: 2022-04-20

Steel model test on structural strength of ship superstructure underoverall longitudinal bending

1.
China Ship Scientific Research Center, Wuxi 214082, China
2.
Shanghai Division, China Ship Development and Design Center, Shanghai 201108, China

总纵弯曲下舰船上层建筑结构强度钢模试验由刘俊杰，等创作，采用知识共享署名4.0国际许可协议进行许可。

摘要

摘要: 目的上层建筑会参与船体总纵弯曲，从而导致特殊部位的结构产生应力集中现象，对舰船结构安全造成威胁，而大尺度钢模试验则能较为真实地反映上层建筑的结构响应特征。方法为此，以某舰艏楼上层建筑为研究对象，通过对主船体进行结构等效简化，设计包含整个上层建筑和主船体在内的大尺度舱段缩比钢质模型，并开展中拱弯曲下的结构强度模型试验。结果试验结果和有限元计算结果的对比分析表明，在目标舰上层建筑舷侧开口群角隅，以及上层建筑侧壁与主船体连接的圆弧过渡段上，均存在明显的应力集中现象，上层建筑参与总纵弯曲的有效度为0.315。结论研究成果可为目标舰上层建筑局部结构加强或优化设计方案的制定提供参考，所建立的船体模型简化设计方法也可为舰船大尺度钢模试验模型的设计提供参考。
- 上层建筑 /
- 结构强度 /
- 应力集中 /
- 钢模试验 /
- 弯曲有效度
Abstract: Objectives The superstructure participates in the overall longitudinal bending of a ship, which leads to stress concentration in certain parts and threatens the safety of the ship's structure. The large-scale steel model test can truly reflect the structural response characteristics of superstructures. Methods This paper studies the structural strength of a certain ship's superstructure. Through the equivalent simplification of the main hull structure, a large-scale steel model including the superstructure and main body is designed, and structural strength model testing is carried out under hogging moment load. Results The test and finite element calculation results show obvious stress concentration phenomena in the corners of the side opening groups of the superstructure and the edges of the round transitions between the sidewall and main deck. The bending efficiency of the superstructure is 0.315. Conclusions The results of this study can provide references for the local structural strengthening and optimal superstructure design of target ships. The simplified design method of the ship hull model provided in this paper can also serve as a reference for the design of large-scale ship models.
- superstructure /
- structural strength /
- stress concentration /
- steel model test /
- bending efficiency

HTML全文

图 1 主船体等效简化前、后结构对比图

Figure 1. Comparison of main hull structure before and after equivalent simplification

下载: 全尺寸图片幻灯片

图 2 试验模型整体分布

Figure 2. The distribution of whole test model

下载: 全尺寸图片幻灯片

图 3 试验加载系统

Figure 3. Test loading system

下载: 全尺寸图片幻灯片

图 4 试验前的模型

Figure 4. Model state before test

下载: 全尺寸图片幻灯片

图 5 部分测点

Figure 5. Parts of the test points

下载: 全尺寸图片幻灯片

图 6 测点S12位置

Figure 6. Location of test point S12

下载: 全尺寸图片幻灯片

图 7 测点S12处von Mises等效应力随载荷变化图

Figure 7. Variation of von Mises equivalent stress with load at test point S12

下载: 全尺寸图片幻灯片

图 8 上层建筑侧壁开口群结构有限元计算结果

Figure 8. FE calculation results of superstructure sidewall openings

下载: 全尺寸图片幻灯片

图 9 上层建筑侧壁与主甲板连接圆弧过渡段测点等效应力变化曲线

Figure 9. Equivalent stress at test points of round transition structure between the superstructure sidewall and main deck

下载: 全尺寸图片幻灯片

图 10 上层建筑与主甲板连接圆弧过渡段有限元计算结果

Figure 10. FE calculation results of round transition structure between the superstructure sidewall and main deck

下载: 全尺寸图片幻灯片

参考文献(10)

[1]	杨代盛. 船体强度与结构设计[M]. 北京: 国防工业出版社, 1986: 40-68. YANG D S. Hull strength and structural design[M]. Beijing: National Defense Industry Press, 1986: 40-68 (in Chinese).
[2]	孙聪. 内河船舶上层建筑对总纵强度的影响研究[D]. 哈尔滨: 哈尔滨工程大学, 2013. SUN C. Research on the effects of superstructure in longitudinal strength of inland ship[D]. Harbin: Harbin Engineering University, 2013 (in Chinese).
[3]	PEI Z Y, MA Z Y, ZHU B, et al. Research on the bending efficiency of superstructure to hull girder strength of inland passenger ship[J]. Ocean Engineering, 2020, 195: 106762. doi: 10.1016/j.oceaneng.2019.106762
[4]	钱仍勣. 船体上层建筑有效性分析的简化模型[J]. 上海交通大学学报, 1996, 30(10): 99–103. QIAN R J. A simplified model of ship superstructure for its effectiveness analysis[J]. Journal of Shanghai Jiao Tong University, 1996, 30(10): 99–103 (in Chinese).
[5]	何祖平, 王福花, 王德禹. 舰船上层建筑端部及舷侧大开口应力集中分析和光弹性实验[J]. 中国造船, 2006, 47(1): 84–89. doi: 10.3969/j.issn.1000-4882.2006.01.013 HE Z P, WANG F H, WANG D Y. Analysis and photoelastic test on the stress concentration of superstructure end and broadside with large opening[J]. Shipbuilding of China, 2006, 47(1): 84–89 (in Chinese). doi: 10.3969/j.issn.1000-4882.2006.01.013
[6]	杨龙, 张少雄. 船体结构上层建筑设计计算中边界条件的处理[J]. 船海工程, 2004(1): 18–20. doi: 10.3963/j.issn.1671-7953.2004.01.008 YANG L, ZHANG S X. On the boundary conditions for FE analysis of the ship's superstructures[J]. Ship & Ocean Engineering, 2004(1): 18–20 (in Chinese). doi: 10.3963/j.issn.1671-7953.2004.01.008
[7]	叶宝珠, 叶灼梅. 上层建筑有效度分析在某船强度计算中的应用[J]. 广东造船, 2005(4): 12–14. YE B Z, YE Z M. The application of superstructure validity analysis on the strength calculation of some ship[J]. Guangdong Shipbuilding, 2005(4): 12–14 (in Chinese).
[8]	张延昌, 王自力, 罗广恩. 船舶上层建筑整体吊装强度有限元分析[J]. 船舶工程, 2006, 28(3): 62–65. doi: 10.3969/j.issn.1000-6982.2006.03.016 ZHANG Y C, WANG Z L, LUO G E. FE analysis of the complete lifting and mounting strength of ship superstructure[J]. Ship Engineering, 2006, 28(3): 62–65 (in Chinese). doi: 10.3969/j.issn.1000-6982.2006.03.016
[9]	李永宽. 复合材料上层建筑力学性能分析与典型模型试验验证方法研究[D]. 哈尔滨: 哈尔滨工程大学, 2018. LI Y K. Research on mechanical properties of composite superstructure and test method of typical model[D]. Harbin: Harbin Engineering University, 2018.
[10]	中国人民解放军总装备部. 水面舰艇结构设计计算方法: GJB/Z 119-99[S]. 北京: 中国人民解放军总装备部, 1999. PLA General Equipment Department. Method for structural design and strength calculation of naval surface ships: GJB/Z 119-99[S]. Beijing: PLA General Equipment Department, 1999 (in Chinese).