CAJ | 학술논문

在给定测量参数基础上,通过非线性估计得到对应离散时刻的部件性能参数,利用数据插值方法扩充测量参数.利用主元分析方法对这些测量参数进行分解,提取反映性能衰退的成分,以此构造反映性能变化的统计量,假定该统计量服从F分布,对性能衰退情况做进一步分析,得到在10000时间点附近性能衰退最为严重,已超过阈值,与前面参数估计结果相符.用部件性能衰退分析方法对发动机性能状况监控,为及时采取维护措施提供了一定的指导作用.
재급정측량삼수기출상,통과비선성고계득도대응리산시각적부건성능삼수,이용수거삽치방법확충측량삼수.이용주원분석방법대저사측량삼수진행분해,제취반영성능쇠퇴적성분,이차구조반영성능변화적통계량,가정해통계량복종F분포,대성능쇠퇴정황주진일보분석,득도재10000시간점부근성능쇠퇴최위엄중,이초과역치,여전면삼수고계결과상부.용부건성능쇠퇴분석방법대발동궤성능상황감공,위급시채취유호조시제공료일정적지도작용.
@@@@Component performance parameter of corresponding discrete time was gained by non-nonlinear parame?ter estimation on basis of given measurement. Measurement was added by interplotation. Measurement was decom?posed by PCA and component that expresses performance deterioration was extracted. Statistics of performance variation was established by this, assuming the statistic submit F distribution, furtherly analyzing performance de?terioration, and the performance deterioration near 10000th was most severe, even exceeding valve value. It was?correspond with estimated result afore-mentioned. Analysis method of component performance deterioration provid?ed a reference to monitoring engine performance and adopting maintenance timely.