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Citation:
　Ning Xu,QianjinYue,Shuai Yuan,et al.Classification Criteria of Narrow/Wide Ice-Resistant Conical Structures Based on Direct Measurements[J].Journal of Marine Science and Application,2016,(4):376-381.[doi:10.1007/s11804-016-1381-7]
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Classification Criteria of Narrow/Wide Ice-Resistant Conical Structures Based on Direct Measurements

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Title:
Classification Criteria of Narrow/Wide Ice-Resistant Conical Structures Based on Direct Measurements
Author(s):
Ning Xu1;  QianjinYue2;  Shuai Yuan1;  Xueqin Liu1;  Wenqi Shi1
Affilations:
Author(s):
Ning Xu1;  QianjinYue2;  Shuai Yuan1;  Xueqin Liu1;  Wenqi Shi1
1. Marine Dynamics Department, National Marine Environmental Monitoring Center, Dalian 116023, China;
2. School of Ocean Science and Technology, Panjin Campus, Dalian University of Technology, Panjin 124221, China
Keywords:
narrow/wide structure|broken ice clearing mode|complete clearing|complete unloading|dynamic ice force|conical structure|classification criteria
分类号:
-
DOI:
10.1007/s11804-016-1381-7
Abstract:
Ice-induced structural vibration generally decreases with an increase in structural width at the waterline. Definitions of wide/narrow ice-resistant conical structures, according to ice-induced vibration, are directly related to structure width, sea ice parameters, and clearing modes of broken ice. This paper proposes three clearing modes for broken ice acting on conical structures: complete clearing, temporary ice pile up, and ice pile up. In this paper, sea ice clearing modes and the formation requirements of dynamic ice force are analyzed to explore criteria determining wide/narrow ice-resistant conical structures. According to the direct measurement data of typical prototype structures, quantitative criteria of the ratio of a cone width at waterline (D) to sea ice thickness (h) is proposed. If the ratio is less than 30 (narrow conical structure), broken ice is completely cleared and a dynamic ice force is produced; however, if the ratio is larger than 50 (wide conical structure), the front stacking of broken ice or dynamic ice force will not occur.

References:

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Memo

Memo:
Received date:2016-5-16;Accepted date:2016-7-18。
Foundation item:Supported by the National Natural Science Foundation of China (Grant No. 41306087), Public Science and Technology Research Funds Projects of Ocean (Grant No. 201505019)
Corresponding author:Ning Xu
Last Update: 2016-11-24