Towards fault-tolerant decision support systems for ship operator guidance

详细信息	查看全文 | 推荐本文 |

• 作者：Ulrik D. Nielsen^a ; ^{udn@mek.dtu.dk} ; Zoran Lajic^b ; Jø ; rgen J. Jensen^a
• 关键词：Fault diagnosis ; System models ; System reliability ; Transfer functions ; Fault-tolerant decision support systems ; Sea state estimation
• 刊名：Reliability Engineering and System Safety
• 出版年：2012
• 期刊代码：150_09518320
• 类别：et
• 出版时间：August, 2012
• 卷：104
• 期：Complete
• 页码：1-14
• 文件大小：1015 K

摘要

Fault detection and isolation are very important elements in the design of fault-tolerant decision support systems for ship operator guidance. This study outlines remedies that can be applied for fault diagnosis, when the ship responses are assumed to be linear in the wave excitation. A novel numerical procedure is described for the calculation of residuals using the ship's transfer functions which correlate the wave excitation and the ship responses. As tests, multiplicative faults have artificially been imposed to full-scale motion measurements and it is shown that the developed model is able to detect and isolate all faults.