【作者】 李刚； 刘翔； 岳前进； 于学兵；

【Author】 LI Gang, LIU Xiang, YUE Qian-Jin, YU Xue-Bing( State Key Laboratory of Structural Analysis of lndustrial Equipment, Dalian University of’Technology, Dalian, 116023 Department of Power Engineering, Dalian University of Technology, Dalian. 116023)

【机构】 大连理工大学工业装备结构分析国家重点实验室,工程力学系； 大连理工大学动力工程系；

【摘要】 将基于功能的设计思想应用于抗冰平台优化改计中,考虑平台的安全、正常生产和人员舒适度等功能要求,结合设计规范,以海洋平台导管架构件的外径和壁厚为设计变量,导管架部分总重量为目标函数,考虑构件强度、刚度、稳定性、平台甲板位移和加速度等约束条件,建立了基于功能的海洋平台抗冰动力优化模型,并对渤海导管架平台JZ20-2MUQ进行了基于动力谐分析和瞬态分析的抗冰优化。结果表明,JZ20-2MUQ平台满足规范的要求,而且具有很大的安全储备。更多还原

【Abstract】 In the present paper, the concept of performance based design is used to the ice-resistant optimum design of the offshore platforms, and the performance requirements of structural safety, equipment serviceability and personnel comfort are considered. Based on the current design codes, the dynamic optimum design formulations are established, in which the diameter and thickness of the pipes of the platform is taken as the design variables, the weight of the pipes is the objective function, and the constraints of strength. stiffness. stability of the pipe member and the acceleration and displacement of the deck are treated. The platform JZ20-2MUQ in Bohai is optimized using harmonic dynamic analysis and time history analysis. The results show that the platform JZ20-2MUQ fully satisfies the requirements of the design codes with enough extra capacity.更多还原