摘要
基于杆件有限单元法和海洋导管架平台的结构特点 ,提出了一种导管架平台灵敏度分析的简化解析方法 ,给出了灵敏度分析的解析公式。指出可以在结构有限元分析的同时采用此解析方法进行灵敏度分析 ,相对有限差分法和半解析方法能够在很大程度上提高计算精度 ,减少结构重分析的次数。利用编制的灵敏度分析计算程序 ,对渤海BZ2 8- 1油田储油平台进行了灵敏度验算 ,证明了该方法的有效性和可行性。
Based on the characteristics of beam′s finite element analysis and ocean jacket platform structures, a simplified analytical method of sensitivity analysis is presented in this paper. It is also pointed out that sensitivity analysis can be done at the same time of structure′s finite element anaysis. The computational precision can be improved and the times of repeated analyses can be decreased greatly, compared with the finite difference methods and semi-analytical methods. With the sensitivity analysis program made by the author, sensitivity analysis is carried out for Bohai BZ28-1 storage platform and the result shows its efficiency and feasibility.
出处
《海洋工程》
CSCD
北大核心
2001年第3期20-24,共5页
The Ocean Engineering
基金
国家自然科学基金重大项目资助课题 ( 5 9895 410 )
