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Reliability analysis of ultimate strength for ultra-large container ships based on UR S11A
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Xiangzhong Hu1, Longbing Liao2, Yongkun Lyu1, Xiaofei Wang1, Benqiang Lou2, *
Navigation of China | 2026, 49(4) : 136 - 142
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Navigation of China | 2026, 49(4): 136-142
• Marine Traffic Engineering •
Reliability analysis of ultimate strength for ultra-large container ships based on UR S11A
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Xiangzhong Hu1, Longbing Liao2, Yongkun Lyu1, Xiaofei Wang1, Benqiang Lou2, *
Affiliations
  • 1.COSCO SHIPPING Heavy Industry (Dalian) Co., Ltd., Dalian 116000, China
  • 2.School of Naval Architecture and Ocean Engineering, Jiangsu University of Science and Technology, Zhenjiang 212100, China
Published: 2026-08-25 doi: 10.3969/j.issn.1000-4653.2026.04.015
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This study analyzes the ultimate strength of an ultra-large container ship in accordance with the requirements of the International Association of Classification Societies (IACS) to assess the reliability of its hull structural ultimate strength.. A twin-island ultra-large container vessel is selected as the research object. Based on IACS UR S11A the ultimate strength of the ship is calculated, validated, and subjected to reliability analysis. Results indicate that ship may face a risk of insufficient strength under extreme operating conditions, and structural reinforcement is therefore required in accordance with UR S11A. By innovatively integrating the requirements of UR S11A with structural reliability theory, this study realizes a quantitative assessment of the ultimate strength for ultra-large container ships. The findings provide reference value for inspection and maintenance recommendations for aging vessels, as well as for route optimization.

ship engineering  /  container ship  /  UR S11A  /  reliability analysis  /  ultimate strength
胡向忠, 廖龙冰, 吕永坤, 王晓飞, 娄本强. 基于UR S11A规范的超大集装箱船极限强度可靠性研究. 中国航海, 2026 , 49 (4) : 136 -142 . DOI: 10.3969/j.issn.1000-4653.2026.04.015
Xiangzhong Hu, Longbing Liao, Yongkun Lyu, Xiaofei Wang, Benqiang Lou. Reliability analysis of ultimate strength for ultra-large container ships based on UR S11A[J]. Navigation of China, 2026 , 49 (4) : 136 -142 . DOI: 10.3969/j.issn.1000-4653.2026.04.015
Appendix
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Year 2026 volume 49 Issue 4
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Article Info
doi: 10.3969/j.issn.1000-4653.2026.04.015
  • Receive Date：2025-12-01
  • Online Date：2026-09-28
  • Published：2026-08-25
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  • Received：2025-12-01
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Affiliations
    1.COSCO SHIPPING Heavy Industry (Dalian) Co., Ltd., Dalian 116000, China
    2.School of Naval Architecture and Ocean Engineering, Jiangsu University of Science and Technology, Zhenjiang 212100, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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