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Time-variant Reliability Analysis of Ship Grillage Structure

机译：船舶格栅结构的时变可靠性分析

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Material characteristics, environmental conditions and loading characteristics under the time domain features shall be taken into consideration so as to effectively evaluate the reliability of ship grillage structure. Moreover, the method of time-variant reliability serves as an effective approach to solve the problem. In the paper, based on the loading environmental features of ships during the enlistment, research has been conducted on the changing of material geometrical and mechanical characteristics with time under the corrosive action. Furthermore, on the basis of time-variant theory, the time-variant model of section modulus as well as bending strength concerning the ship grillage structure has been established, thus generating a time-variant reliability analysis method integrated with out-crossing rate and First Order Second Moment (FOSM) method. Besides, the paper analyzes the time consecutiveness of ship grillage structure reliability based on the time-variant reliability cases of certain ship grillage structure under the corrosion environment while the failure probability of the ship during the enlistment has been accurately predicted.
机译：应考虑在时域特征下的材料特性，环境条件和装载特性，以便有效地评估船舶毛坯结构的可靠性。此外，时间变量可靠性的方法用作解决问题的有效方法。本文基于入伍期间船舶的加载环境特征，在腐蚀动作下随时间的时间进行了改变的材料几何和机械特性。此外，在时变理论的基础上，已经建立了截面模量的截面模量的时变模型以及诸如船格式结构的弯曲强度，从而产生了与过交叉率的时变可靠性分析方法和第一订购第二矩（FOSM）方法。此外，本文根据腐蚀环境下的某些船舶格栅结构的时变可靠性案例分析了船舶格栅结构可靠性的时间，同时准确预测了船舶在船舶期间的故障概率。

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