摘要
半潜平台气隙性能的好坏关系着平台生产作业及平台人员的安全,在结构设计中具有重要的意义。对于许多老型平台,由于早期的分析手段有限,在设计时并没有考虑由于负气隙带来的砰击对底部结构的损伤,而采用现有手段进行重新评估时需要对老平台进行改造,成本较高。本文通过采用DNVGL-OTG13中的气隙分析方法,对一平台的气隙性能进行分析,并通过在某海域选取一系列的环境条件,给出保证平台正气隙前提下的波高-周期的包络线,从而在不改造结构的前提下选取合适的海域进行作业。
The air gap performance of the semi-submersible platform is closely related to the safety of the production and personnel,which has significant meaning in the structural design.For many old platforms,the damage from slamming caused by the negative air gap did not considered in the structural design due to the limited means of the analysis in the early stage.However,the old platforms need to be reconstruction when using the existing methods for reevaluation,which is of high cost.The method in DNVGL-OTG13 is adopted to analyze the air gap performance of an old platform.By selecting a series of environmental conditions in a sea area,the envelope curve of wave height to period under the positive air gap is given,so as to ensure that the working area can be selected without transforming the structure.
作者
位巍
刘成名
梁园华
Wei Wei;Liang Yuan-hua(Offshore Engineering Technology Center of CCS,Tianjin 300457,China;Offshore Engineering Technology Center of CCS,Beijing 100007,China)
出处
《海洋工程装备与技术》
2019年第S01期18-21,共4页
Ocean Engineering Equipment and Technology
基金
“深水半潜式支持平台研发”(MC-201620-H01)
