Correction of Wave Surge Forces to Improve Surf-Riding/Broaching Vulnerability Criterion Check Accuracy

doi:10.1007/s12204-017-1874-9

上海交通大学学报（英文版） ›› 2017, Vol. 22 ›› Issue (5): 549-554.doi: 10.1007/s12204-017-1874-9

Correction of Wave Surge Forces to Improve Surf-Riding/Broaching Vulnerability Criterion Check Accuracy

FENG Peiyuan¹* (封培元), FAN Sheming¹(范佘明), MA Ning² (马宁)

(1. Shanghai Key Laboratory of Ship Engineering, Marine Design and Research Institute of China, Shanghai 200011, China; 2. State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, Shanghai 200240, China)

出版日期:2017-09-30 发布日期:2017-09-30
通讯作者: FENG Peiyuan(封培元) E-mail:pyfeng23@163.com

Correction of Wave Surge Forces to Improve Surf-Riding/Broaching Vulnerability Criterion Check Accuracy

FENG Peiyuan¹* (封培元), FAN Sheming¹ (范佘明), MA Ning² (马宁)

(1. Shanghai Key Laboratory of Ship Engineering, Marine Design and Research Institute of China, Shanghai 200011, China; 2. State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, Shanghai 200240, China)

Online:2017-09-30 Published:2017-09-30
Contact: FENG Peiyuan(封培元) E-mail:pyfeng23@163.com

摘要/Abstract

摘要： Surf-riding/broaching is one of the five stability failure modes to be included into the International Maritime Organization (IMO) second generation intact stability criteria (which are risk-based stability criteria) that can ensure the safety of ships in actual seaways more effectively. This study focuses on the influence of wave surge force prediction accuracy on surf-riding/broaching vulnerability criterion check result. Firstly, it is demonstrated that the wave surge force prediction method adopted in the current vulnerability criterion check procedure is not accurate and may lead to wrong conclusions. The experimental data from captive model test and the numerical result based on 3D panel method both indicate that the diffraction effect must be considered to correctly predict the wave surge forces. Besides, sophisticated methods are not suitable for Level 2 vulnerability criterion check due to their complexity. Therefore, an empirical formula for wave surge force correction based on sample ship calculation results is proposed. The proposed empirical correction formula can effectively improve the vulnerability criterion check accuracy and thus contribute to the design and safety of the ships which are vulnerable to this stability failure mode.

关键词: second generation intact stability criteria, surf-riding/broaching, wave surge force, panel method, empirical formula, diffraction effect correction

Abstract: Surf-riding/broaching is one of the five stability failure modes to be included into the International Maritime Organization (IMO) second generation intact stability criteria (which are risk-based stability criteria) that can ensure the safety of ships in actual seaways more effectively. This study focuses on the influence of wave surge force prediction accuracy on surf-riding/broaching vulnerability criterion check result. Firstly, it is demonstrated that the wave surge force prediction method adopted in the current vulnerability criterion check procedure is not accurate and may lead to wrong conclusions. The experimental data from captive model test and the numerical result based on 3D panel method both indicate that the diffraction effect must be considered to correctly predict the wave surge forces. Besides, sophisticated methods are not suitable for Level 2 vulnerability criterion check due to their complexity. Therefore, an empirical formula for wave surge force correction based on sample ship calculation results is proposed. The proposed empirical correction formula can effectively improve the vulnerability criterion check accuracy and thus contribute to the design and safety of the ships which are vulnerable to this stability failure mode.

Key words: second generation intact stability criteria, surf-riding/broaching, wave surge force, panel method, empirical formula, diffraction effect correction

中图分类号:

FENG Peiyuan1* (封培元), FAN Sheming1 (范佘明), MA Ning2 (马宁). Correction of Wave Surge Forces to Improve Surf-Riding/Broaching Vulnerability Criterion Check Accuracy[J]. 上海交通大学学报（英文版）, 2017, 22(5): 549-554.

FENG Peiyuan1* (封培元), FAN Sheming1 (范佘明), MA Ning2 (马宁). Correction of Wave Surge Forces to Improve Surf-Riding/Broaching Vulnerability Criterion Check Accuracy[J]. Journal of shanghai Jiaotong University (Science), 2017, 22(5): 549-554.

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Correction of Wave Surge Forces to Improve Surf-Riding/Broaching Vulnerability Criterion Check Accuracy

Correction of Wave Surge Forces to Improve Surf-Riding/Broaching Vulnerability Criterion Check Accuracy

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