Adaptive analysis of polar bidirectional icebreaker ship's stern line characteristics

ObjectivesTo ensure the icebreaking navigation capability of polar bidirectional icebreaker ships, it is necessary to focus on the design of their stern line characteristics. MethodsThis paper surveys many polar ships in active service, summarizes the current standards, discusses the ice load modes...

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Main Authors: Meize KANG, Xiaojun LI, Zhenyang WANG
Format: Article
Language:English
Published: Editorial Office of Chinese Journal of Ship Research 2023-06-01
Series:Zhongguo Jianchuan Yanjiu
Subjects:
Online Access:http://www.ship-research.com/en/article/doi/10.19693/j.issn.1673-3185.02555
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author Meize KANG
Xiaojun LI
Zhenyang WANG
author_facet Meize KANG
Xiaojun LI
Zhenyang WANG
author_sort Meize KANG
collection DOAJ
description ObjectivesTo ensure the icebreaking navigation capability of polar bidirectional icebreaker ships, it is necessary to focus on the design of their stern line characteristics. MethodsThis paper surveys many polar ships in active service, summarizes the current standards, discusses the ice load modes of the pod propulsion units and ice breakage processes of ships, and analyzes the key design characteristic parameters and adaptability of the stern lines of pod-propelled polar ships.ResultsIt was found that the dip angle of the stern transom plate affects the horizontal and vertical forces on the sea ice by ships directly during the ice-breaking processes. This dip angle should be amplified properly to guide the bending fracture of sea ice effectively. The W type of stern plate transverse profile can resolve the contradiction between the optimization of wake field and the outflow efficiency of broken ice. The pod installation base could play a certain ice-breaking function, but it would affect the flow field of the pod. The tail fin would also affect the stern flow field and the outflow of broken ice obviously. Conclusions The reference for the adaptive optimization design of pod-propelled polar ship stern profile can be provided by the research results.
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spelling doaj.art-764ecc05aa944213b84e5d7a6b8a04a12023-07-07T03:47:55ZengEditorial Office of Chinese Journal of Ship ResearchZhongguo Jianchuan Yanjiu1673-31852023-06-01183263110.19693/j.issn.1673-3185.02555ZG2555Adaptive analysis of polar bidirectional icebreaker ship's stern line characteristicsMeize KANG0Xiaojun LI1Zhenyang WANG2China Ship Development and Design Center, Wuhan 430064, ChinaChina Ship Development and Design Center, Wuhan 430064, ChinaWuchang Shipbuilding Industry Group Co. Ltd., Wuhan 430064, ChinaObjectivesTo ensure the icebreaking navigation capability of polar bidirectional icebreaker ships, it is necessary to focus on the design of their stern line characteristics. MethodsThis paper surveys many polar ships in active service, summarizes the current standards, discusses the ice load modes of the pod propulsion units and ice breakage processes of ships, and analyzes the key design characteristic parameters and adaptability of the stern lines of pod-propelled polar ships.ResultsIt was found that the dip angle of the stern transom plate affects the horizontal and vertical forces on the sea ice by ships directly during the ice-breaking processes. This dip angle should be amplified properly to guide the bending fracture of sea ice effectively. The W type of stern plate transverse profile can resolve the contradiction between the optimization of wake field and the outflow efficiency of broken ice. The pod installation base could play a certain ice-breaking function, but it would affect the flow field of the pod. The tail fin would also affect the stern flow field and the outflow of broken ice obviously. Conclusions The reference for the adaptive optimization design of pod-propelled polar ship stern profile can be provided by the research results.http://www.ship-research.com/en/article/doi/10.19693/j.issn.1673-3185.02555podded propulsionpolar shipstern lineadaptive analysis
spellingShingle Meize KANG
Xiaojun LI
Zhenyang WANG
Adaptive analysis of polar bidirectional icebreaker ship's stern line characteristics
Zhongguo Jianchuan Yanjiu
podded propulsion
polar ship
stern line
adaptive analysis
title Adaptive analysis of polar bidirectional icebreaker ship's stern line characteristics
title_full Adaptive analysis of polar bidirectional icebreaker ship's stern line characteristics
title_fullStr Adaptive analysis of polar bidirectional icebreaker ship's stern line characteristics
title_full_unstemmed Adaptive analysis of polar bidirectional icebreaker ship's stern line characteristics
title_short Adaptive analysis of polar bidirectional icebreaker ship's stern line characteristics
title_sort adaptive analysis of polar bidirectional icebreaker ship s stern line characteristics
topic podded propulsion
polar ship
stern line
adaptive analysis
url http://www.ship-research.com/en/article/doi/10.19693/j.issn.1673-3185.02555
work_keys_str_mv AT meizekang adaptiveanalysisofpolarbidirectionalicebreakershipssternlinecharacteristics
AT xiaojunli adaptiveanalysisofpolarbidirectionalicebreakershipssternlinecharacteristics
AT zhenyangwang adaptiveanalysisofpolarbidirectionalicebreakershipssternlinecharacteristics