基于缺口应力法的船舶焊接结构疲劳强度分析

doi:10.16183/j.cnki.jsjtu.2023.307

上海交通大学学报 ›› 2025, Vol. 59 ›› Issue (4): 458-465.doi: 10.16183/j.cnki.jsjtu.2023.307

基于缺口应力法的船舶焊接结构疲劳强度分析

甄春博¹(), 刘世豪¹^,², 张爱锋¹, 邢世柱¹, 张润泽¹

1.大连海事大学船舶与海洋工程学院,辽宁大连 116026
2.上海航天电子技术研究所,上海 201109

收稿日期:2023-07-07 修回日期:2023-08-31 接受日期:2023-09-07 出版日期:2025-04-28 发布日期:2025-05-09
作者简介:甄春博(1982—),副教授,从事船舶结构疲劳强度研究;E-mail:zhenchunbo@163.com.
基金资助:
国家重点研发计划重点专项(2016YFC0301500);中央高校基本科研业务费专项资金(3132023516)

Fatigue Strength Analysis of Ship’s Welded Structures Based on Method of Notch Stress

ZHEN Chunbo¹(), LIU Shihao¹^,², ZHANG Aifeng¹, XING Shizhu¹, ZHANG Runze¹

1. Naval Architecture and Ocean Engineering College, Dalian Maritime University, Dalian 116026, Liaoning, China
2. Shanghai Aerospace Electronic Technology Institute, Shanghai 201109, China

Received:2023-07-07 Revised:2023-08-31 Accepted:2023-09-07 Online:2025-04-28 Published:2025-05-09

摘要/Abstract

摘要：

针对船舶结构疲劳强度问题,利用缺口应力法对典型结构节点的焊趾和焊根部位进行疲劳强度分析.首先,介绍缺口应力法和船舶结构缺口疲劳分析流程.然后,针对成品油船双层底结构设置6种典型节点型式,采用有限元子模型技术,进行疲劳热点部位的局部缺口应力分析,得到了焊趾和焊根部位的缺口应力集中系数.最后基于协调共同结构规范(HCSR)计算船舶结构疲劳载荷及工况,对6种典型节点型式进行疲劳分析.结果表明,相同工况下各热点部位焊趾处的缺口应力集中系数均小于焊根处,节点型式3具有较小的疲劳损伤值,该节点型式可提高船体的抗疲劳性能.

关键词: 船舶结构, 疲劳强度, 缺口应力, 子模型, 协调共同结构规范

Abstract:

To address the fatigue strength problem of ship structures, the notch stress method is applied to typical structural joints focusing on weld toe and weld root. First, the basic principles of notch stress method and the notch fatigue analysis process of ship structure are introduced. Then, six typical joint types are set up for the double bottom structure of a product oil tanker. The local notch stress analysis of the fatigue hot spot is conducted using the finite element sub-modeling technology, allowing the determination of the notch stress concentration factor at the weld toe and weld root. Finally, based on the harmonised common structural rules (HCSR), the fatigue load and load condition of the ship structure are calculated, and the fatigue analysis of six typical joint types is performed. The results show that under the same load conditions, the notch stress concentration factor at the weld toe of each hot spot is smaller than that at the weld root, and the joint type 3 has the lowest fatigue damage value among the joint types, which suggests this type can improve the fatigue resistance of the hull.

Key words: ship structure, fatigue strength, notch stress, sub-model method, harmonised common structural rules (HCSR)

中图分类号:

U661.43

甄春博, 刘世豪, 张爱锋, 邢世柱, 张润泽. 基于缺口应力法的船舶焊接结构疲劳强度分析[J]. 上海交通大学学报, 2025, 59(4): 458-465.

ZHEN Chunbo, LIU Shihao, ZHANG Aifeng, XING Shizhu, ZHANG Runze. Fatigue Strength Analysis of Ship’s Welded Structures Based on Method of Notch Stress[J]. Journal of Shanghai Jiao Tong University, 2025, 59(4): 458-465.

图/表 13

图1

图2

图3

表1

图4

图5

图6

图7

图8

图9

图10

图11

图12

参考文献 16

[1]	张爱青, 薛鸿祥, 唐文勇. 晃荡载荷作用下液化天然气船泵塔结构疲劳寿命分析方法[J]. 上海交通大学学报, 2012, 46(3): 363-367.
	ZHANG Aiqing, XUE Hongxiang, TANG Wen-yong. Fatigue life analysis method of pump tower structure of liquefied natural gas ship under sloshing load[J]. Journal of Shanghai Jiao Tong University, 2012, 46(3): 363-367.
[2]	余宏淦, 黄小平, 张永矿. 基于谱分析和裂纹扩展方法的舱口角隅疲劳寿命预报方法[J]. 上海交通大学学报, 2019, 53(2): 153-160. doi: 10.16183/j.cnki.jsjtu.2019.02.005
	YU Honggan, HUANG Xiaoping, ZHANG Yong-kuang. Fatigue life prediction method of hatch corner based on spectral analysis and crack propagation method[J]. Journal of Shanghai Jiao Tong University, 2019, 53(2): 153-160.
[3]	HOBBACHER A F. Recommendations for fatigue design of welded joints and components[M]. Cham, Switzerland: Springer, 2016.
[4]	FRICKE W. Round-robin study on stress analysis for the effective notch stress approach[J]. Welding in the World, 2007, 51(3): 68-79.
[5]	FISCHER C, FRICKE W, RIZZO C M. Fatigue assessment of web-stiffened corners in plated structures by local approaches[J]. Ship Technology Research, 2018, 65(2): 69-78.
[6]	NGUYEN K T, GARBATOV Y, SOARES C G. Fatigue damage assessment of a tanker structural detail based on the effective notch stress approach[C]// Maritime Technology and Engineering. London, UK: Taylor & Francis Group, 2012: 363-373.
[7]	FRICKE W, VAN A, PAETZOLD H. Fatigue strength investigations of welded details of stiffened plate structures in steel ships[J]. International Journal of Fatigue, 2012, 34(1): 17-26.
[8]	FRICKE W, PAETZOLD H. Full-scale fatigue tests of ship structures to validate the S-N approaches for fatigue strength assessment[J]. Marine Structures, 2010, 23(1): 115-130.
[9]	严仁军, 何丰, 谌伟. 基于缺口应力法的焊接接头疲劳强度评估[J]. 武汉理工大学学报(交通科学与工程版), 2017, 41(5): 766-769.
	YAN Renjun, HE Feng, CHEN Wei. Fatigue strength evaluation of welded joints based on notch stress method[J]. Journal of Wuhan University of Technology (Transportation Science and Engineering), 2017, 41(5): 766-769.
[10]	刘旭, 张开林, 姚远, 等. 基于缺口应力法的焊接接头疲劳分析[J]. 工程力学, 2016(6): 209-214.
	LIU Xu, ZHANG Kailin, YAO Yuan, et al. Fatigue analysis of welded joints based on notch stress method[J]. Engineering Mechanics, 2016(6): 209-214.
[11]	胡鑫, 李艳青, 黄进浩. HFMI处理的钢制焊接接头疲劳评估模型探讨[J]. 焊接学报, 2022, 43(3): 80-86. doi: 10.12073/j.hjxb.20210703003
	HU Xin, LI Yanqing, HUANG Jinhao. Discussion on fatigue assessment model of HFMI treated steel welded joints[J]. Welding Institution, 2022, 43(3): 80-86.
[12]	周张义, 王雨舟, 杨欣. 基于不同应力法的焊接构架纵向角接头疲劳累积损伤评估[J]. 焊接学报, 2018, 39(8): 18-22. doi: 10.12073/j.hjxb.2018390193
	ZHOU Zhangyi, WANG Yuzhou, YANG Xin. Fatigue cumulative damage assessment of longitudinal fillet joints of welded frame based on different stress methods[J]. Welding Institution, 2018, 39(8): 18-22.
[13]	姜朝勇, 赵鑫源, 魏苇, 等. 基于有效缺口应力的地铁构架疲劳损伤研究[J]. 机车电传动, 2022(2): 135-140.
	JIANG Chaoyong, ZHAO Xinyuan, WEI Wei, et al. Research on fatigue damage of subway frame based on effective notch stress[J]. Locomotive Electric Transmission, 2022(2): 135-140.
[14]	NEUBER H. Theorie der technischen Formzahl[J]. Forschung Im Ingenieurwesen, 1936(7): 271-274.
[15]	RADAJ D, LAZZARIN P, BERTO F. Generalized Neuber concept of fictitious notch rounding[J]. International Journal of Fatigue, 2013, 51(6): 105-115.
[16]	IACS. Harmonised commom structural rules: HCSR[S]. Beijing, China: International Association of Classification Societies, 2015.

编辑推荐 0

Metrics

阅读次数

全文

516

HTML			PDF

最新录用	在线预览	正式出版	最新录用	在线预览	正式出版
0	0	2	204	0	310

来源	本网站	其他网站

次数	56	460
比例	11%	89%

摘要

1228

最新录用	在线预览	正式出版

106	0	1122

来源	本网站	其他网站

次数	60	1169
比例	5%	95%

位置	(D_x, D_y, D_z)/m		(R_x, R_y, R_z)/(°)
位置	海水动压力	船体梁载荷	海水动压力	船体梁载荷
左侧截断面	(0, 0, 0)	(0, 0, 0)	(-, 0, 0)	(0, 0, 0)
右侧截断面	(0, 0, 0)	(0, 0, 0)	(-, 0, 0)	(0, 0, 0)
后端截断面	(0, -, -)	(0, -, -)	(-, 0, 0)	(-, 0, 0)
前端截断面	(0, -, -)	(0.001, -, -)	(-, 0, 0)	(-, 0, 0)

基于缺口应力法的船舶焊接结构疲劳强度分析

Fatigue Strength Analysis of Ship’s Welded Structures Based on Method of Notch Stress

RichHTML

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

图/表 13

参考文献 16

相关文章 9

编辑推荐 0

Metrics

本文评价

[1]	李红涛, 杨林林, 曲晓奇, 孙涛. 海上浮式风电装备关键技术工程探索与实践[J]. 海洋工程装备与技术, 2023, 10(2): 79-88.
[2]	段红燕, 唐国鑫, 盛捷, 曹孟杰, 裴磊, 田宏伟. 一种新型的疲劳强度预测模型[J]. 上海交通大学学报, 2022, 56(6): 801-808.
[3]	陈松坤，王德禹. 基于神经网络的蒙特卡罗可靠性分析方法[J]. 上海交通大学学报（自然版）, 2018, 52(6): 687-692.
[4]	马网扣, 刘军. 新型立柱式生产储油平台桁架管节点疲劳分析[J]. 海洋工程装备与技术, 2018, 5(4): 252-258.
[5]	杜现斌，赵又群，肖振，林棻. 基于刷子模型的悬链式非充气车轮外倾侧偏特性分析[J]. 上海交通大学学报（自然版）, 2018, 52(3): 305-311.
[6]	胡新明,王德禹. 基于迭代均值组合近似模型和序贯优化与可靠性评估法的船舶结构优化设计[J]. 上海交通大学学报（自然版）, 2017, 51(2): 150-.
[7]	熊志鑫. 船体结构有限元建模与分析[J]. 海洋工程装备与技术, 2015, 2(5): 331-331.
[8]	. 《船舶结构设计》简介[J]. 海洋工程装备与技术, 2014, 1(2): 110-110.
[9]	何小二,王德禹,夏利娟. 基于粒子群算法的多用途船结构优化[J]. 上海交通大学学报（自然版）, 2013, 47(06): 928-931.