抗冰海洋平台的全寿命优化设计I-理论与模型  

Life-cycle cost-effective optimum design of ice-resistant offshore platforms I-theory and model

作　　者：李刚[1] 张大勇[1] 岳前进[1] 

机构地区：[1]大连理工大学工业装备结构分析国家重点实验室,辽宁大连116023

出　　处：《船舶力学》2008年第4期599-606,共8页Journal of Ship Mechanics

基　　金：863计划资助(2001AA602015);国家自然科学基金项目(10421002,50578028);教育部新世纪优秀人才支持计划资助

摘　　要：文章基于投资—效益准则,建立了抗冰平台全寿命总费用最小的优化设计模型;考虑了多种类型的性能要求(结构、设备、人员),并建立了相关判据;提出了包括结构的初始费用、维修费用和期望损失费用的冰区海洋平台全寿命总费用评估模型;提出了平台结构主要功能的确定及描述方法、相应的功能失效损失值估计模型。The optimum design model to minimize the expected life-cycle cost for ice-resistant platforms based on cost-effectiveness criterion is proposed in this study. Multiple performance demands under static and dynamic ice loads, such as structure, facilities and crew members, are treated. The related failure evaluation criteria, costs of construction, consequences of structural failure modes are formulated, in which the damage loss, repair cost, death and injury loss as well as discounting cost over time are considered.

关 键 词：全寿命总费用 结构可靠度 最优设计 破坏评估 海洋平台 冰荷载 

分 类 号：U674.381[交通运输工程—船舶及航道工程]