12/24.2021
This paper is to introduce the latest rule change proposal on improving the global elastic buckling requirements of Common Structural Rules for Bulk Carriers and Oil Tankers(CSR January 2020) of International Association of Classification Societies(IACS), which are carried out by IACS PT PH43. Based on general elastic orthotropic plate buckling theory, a set of new formulae regarding global elastic buckling capacity is proposed to replace the corresponding ones based on one-dimensional beam theory in CSR January 2020. Since the second order effect item of the stiffener bending moment is highly dependent on the new global elastic buckling capacity formula, the set of general stiffened panel ultimate capacity interactive formulae in CSR is recalibrated considering the effects due to Poisson correction, lateral pressure etc. Finally, a series of typical ship stiffened panels and some specially selected panels with slender stiffeners are calculated and compared with corresponding NLFEM results, which gives good agreement and verifies the correctness of the proposal. The rule change proposal has been incorporated in CSR January 2021 which takes into effect on July 1 2021.
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08/29.2016
移动平台结构全生命周期管理系统,是一个基于结构模型数据库为基础的为移动平台井位作业能力分析、应急响应以及现场检验提供服务的、以保证海上移动平台结构安全为目的的大型管理信息系统(简称MSER系统,Model, Survey, Emergency Response)。它通过建立有限元模型数据库,结合设计原始图纸数据及生命期中的动态数据输入(如改造、检测),应用有限元计算及理论分析,给出结构安全评价结论,为检验机构现场检验、平台日常维护和保养提供指导,并当平台改变作业环境条件需要井位作业能力分析以及出现意外事故需进行应急响应时,为船东快速决策提供技术支持。
08/24.2015
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07/18.2020
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05/29.2023
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07/25.2022
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