| 建立海洋平台管节点P-S-N曲线的模糊统计方法 |
| |
| 引用本文： | 薛鸿祥,唐文勇,张圣坤.建立海洋平台管节点P-S-N曲线的模糊统计方法[J].上海交通大学学报,2006,40(8):1339-1342,1347. |
| |
| 作者姓名： | 薛鸿祥 唐文勇 张圣坤 |
| |
| 作者单位： | 上海交通大学,海洋工程国家重点实验室,上海,200030 |
| |
| 基金项目： | 国家自然科学基金;上海市科委资助项目 |
| |
| 摘 要： | 基于马氏距离的隶属函数,给出了模糊统计特征值的计算公式,采用模糊统计方法对海洋平台管节点疲劳试验的结果进行统计分析,建立了P-S-N曲线.计算结果表明,模糊方差和模糊变异系数比常规统计方法所得出的方差和变异系数小.该方法优于传统的统计方法,尤其适合处理分散性较大的小子样疲劳试验数据.
|
| 关 键 词： | P-S-N曲线 模糊统计方法 海洋平台 管节点 疲劳试验 |
| 文章编号： | 1006-2467（2006）08-1339-04 |
| 收稿时间： | 2005-08-08 |
| 修稿时间： | 2005-08-08 |
Fuzzy Statistical Method for Establishing P- S- N Curves of Tubular Joints of Offshore Platform |
| |
| XUE Hong-xiang,TANG Wen-yong,ZHANG Sheng-kun.Fuzzy Statistical Method for Establishing P- S- N Curves of Tubular Joints of Offshore Platform[J].Journal of Shanghai Jiaotong University,2006,40(8):1339-1342,1347. |
| |
| Authors: | XUE Hong-xiang TANG Wen-yong ZHANG Sheng-kun |
| |
| Institution: | State Key Lab. of Ocean Eng. , Shanghai Jiaotong Univ. , Shanghai 200030, China |
| |
| Abstract: | According to the membership function based on the Mahalanobis distance,the equations of fuzzy eigenvalue were presented.P-S-N curves of tubular joints were established based on the analysis of a typical fatigue data set of joints with fuzzy statistical method.The result indicates that the fuzzy method is better than the classical stochastic method because its variance and coefficient of variation are both less than the results obtained by the traditional method.The fuzzy statistical method is especially feasible for the(analysis) of small samples with large variance. |
| |
| Keywords: | P-S-N curve fuzzy statistical method offshore platform tubular joints fatigue test |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
