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Date of Publication:2022-10-04

Journal:Harbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering University

Affiliation of Author(s):运载工程与力学学部

Volume:42

Issue:2

Page Number:193-199

ISSN No.:1006-7043

Abstract:To address the problem of positioning floating nuclear power platform in icy areas, considering the platform functions and marine environmental conditions, in this study, we designed an overall scheme, mooring system, and connecting mechanism for the separated nuclear power platform in icy areas. The mooring system and connecting mechanism were optimized based on the results of the numerical simulation. Based on the discrete element theory, we constructed a model for discrete elements of sea ice and investigated the interaction between sea ice and the floating nuclear power platform. Based on the potential theory and numerical calculation method for the boundary-element, we also studied the forces and motion of the floating nuclear power platform in waves. Based on the offshore dynamics, we analyzed the coupled dynamic responses of the nuclear power platform under the combined action of wind and waves and of wind and ice in the time domain. On this basis, the influence of various parameters on the positioning system was analyzed, and optimal designs for the mooring system and connecting mechanism were identified. The results of this research show that: 1) increasing the number of mooring cables can reduce the extent of platform displacement and the maximum cable tension; 2) the tension amplitude of the four-point mooring system is less than that of the uniformly distributed mooring system; 3) the mechanically separated connection mechanism is superior to a spring damping connection. Copyright ©2021 Journal of Harbin Engineering University.

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