| 孔祥兴1，潘燕2，武通海2.考虑多监测指标不确定性的滑油状态综合评估方法[J].航空发动机,2020,46(4):71-77 |
| 考虑多监测指标不确定性的滑油状态综合评估方法 |
| Comprehensive Assessment Method of Oil Status Considering Uncertainty of MultipleMonitoring Index |
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| DOI： |
| 中文关键词: 滑油监测 状态评估 健康管理 模糊证据理论 航空发动机 |
| 英文关键词:oil monitoring status assessment health management Fuzzy Evidential Reasoning aeroengine |
| 基金项目:航空动力基础研究项目资助 |
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| 中文摘要: |
| 针对不同油液指标信息的多样性导致油液状态评估结果存在不确定性的问题，基于模糊证据理论方法提出了1 种考虑
油液特征不确定的综合状态评估方法。应用模糊证据理论对油液多指标信息推理导致的不确定性结论进行多指标融合，进而应用
模糊推理算法实现油液状态量化表征，建立了滑油衰变趋势分析模型，并通过实验室环境下的滑油监测数据进行油液状态评估以
验证方法的有效性。结果表明：该方法对监测指标变化趋势矛盾的滑油状态评估有较好的效果，准确性和一致性均高于90%。 |
| 英文摘要: |
| In view of the uncertainty of oil status assessment results caused by the diversity of different oil index information，a
comprehensive status assessment method considering the uncertainty of oil characteristics was proposed based on Fuzzy Evidential
Reasoning（FER）method. The FER method was applied to the multi-index fusion of the uncertain conclusions caused by the oil multi-index
information inference，and then the Fuzzy Inference System （FIS）was applied to realize the quantitative characterization of oil status. The
analysis model of oil decay trend was established，and the oil status was evaluated by oil monitoring data in laboratory environment to verify
the effectiveness of the method. The results show that the method has a good effect on the assessment of oil status with contradictory trend of
monitoring index，and the accuracy and consistency are higher than 90%. |
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