| 张光宇，张福光，程继红.基于Delphi-模糊Petri 网的航空发动机故障诊断[J].航空发动机,2020,46(6):1-5 |
| 基于Delphi-模糊Petri 网的航空发动机故障诊断 |
| Aeroengine Fault Diagnosis Based on Delphi-fuzzy Petri Net |
| |
| DOI： |
| 中文关键词: 故障诊断 Delphi- 模糊Petri 网 置信度 航空发动机 |
| 英文关键词:fault diagnosis Delphi-fuzzy Petri net confidence coefficient aeroengine |
| 基金项目: |
|
| 摘要点击次数: 1524 |
| 全文下载次数: 810 |
| 中文摘要: |
| 针对航空发动机故障诊断的实际问题，给出了模糊Petri 网的定义，同时在各类模糊式规则的基础上，建立了故障诊断
推理方法及故障原因判断准则。通过对航空发动机滑油系统最小滑油压力信号灯燃亮故障的实例分析，将Delphi 法与模糊Petri
网结合，综合2 种方法的优势，采用反向故障诊断，用Delphi 法计算出所有可能的故障原因的置信度，验证了Delphi- 模糊Petri
网在故障诊断方面的有效性与所建立模型的可行性，为航空发动机的故障定位与故障原因推理提供了1种可行方法。 |
| 英文摘要: |
| Aiming at the practical problem of aeroengine fault diagnosis，the definition of fuzzy Petri net was given，and on the basis of
various fuzzy rules, the reasoning method of fault diagnosis and the judgment criterion of fault cause were given. By analyzing light up fault
of minimum oil pressure signal lamp of aeroengine lubricating system，the Delphi method and the fuzzy Petri nets were combined.By
integrating the advantages of two methods using backward fault diagnosis, the confidence coefficients of all possible fault causes were
calculated by Delphi method.The results show that the Delphi - fuzzy Petri net is effective in fault diagnosis ，and the established model is
feasible for aeroengine fault location and fault cause reasoning. |
| 查看全文 查看/发表评论 下载PDF阅读器 |