Stochastic fatigue models for efficient planning inspections in service of aircraft structures

被引：0

作者：

Nechval, Nicholas ^{[1
]}

Nechval, Konstantin ^{[2
]}

Berzinsh, Gundars ^{[1
]}

Purgailis, Maris ^{[1
]}

Rozevskis, Uldis ^{[1
]}

机构：

[1] Latvian State Univ, Dept Math Stat, Raina Blvd 19, LV-1050 Riga, Latvia

[2] Transport & Telecommun Inst, Dept Math Appl, LV-1019 Riga, Latvia

来源：

ANALYTICAL AND STOCHASTIC MODELING TECHNIQUES AND APPLICATIONS, PROCEEDINGS | 2008年 / 5055卷

关键词：

aircraft; fatigue crack; inspection interval;

D O I：

暂无

中图分类号：

TP301 [理论、方法];

学科分类号：

081202 ;

摘要：

For important fatigue-sensitive structures of aircraft whose breakdowns cause serious accidents, it is required to keep their reliability extremely high. In this paper, we discuss inspection strategies for such important structures against fatigue failure. The focus is on the case when there are fatigue-cracks unexpectedly detected in a fleet of aircraft within a warranty period (prior to the first inspection). The paper examines this case and proposes stochastic models for prediction of fatigue-crack growth to determine appropriate inspections intervals. We also do not assume known parameters of the underlying distributions, and the estimation of that is incorporated into the analysis and decision-making. Numerical example is provided to illustrate the procedure.

引用

页码：114 / +

页数：2