Solving the problems of inspection planning under parametric uncertainty of underlying models

Nicholas A. Nechval, Konstantin N. Nechval, Maris Purgailis, Uldis Rozevskis, Vadim Danovich, Natalija Ribakova, Vladimir F. Strelchonok, Max Moldovan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Certain fatigued structures must be inspected in order to detect fatigue damages that would otherwise not be apparent. A technique for obtaining optimal inspection strategies is proposed for situations where it is difficult to quantify the costs associated with inspections and undetected failure. For fatigued structures for which failures (fatigue damages) are only detected at the time of inspection, it is important to be able to determine the optimal times of inspection. Fewer inspections will lead to lower fatigue reliability of the structure upon demand, and frequent inspection will lead to higher cost. When there is a fatigue reliability requirement, the problem is usually to develop an inspection strategy that meets the reliability requirements. It is assumed that only the functional form of the underlying invariant distribution of time-to-failure is specified, but some or all of its parameters are unspecified. The invariant embedding technique proposed in this paper allows one to construct an optimal inspection strategy under parametric uncertainty. This strategy represents a sequence of inspection times satisfying the specific criterion, which takes into account the predetermined value of the conditional fatigue reliability of the structure. The numerical examples are given.

Original languageEnglish
Title of host publication7th IFAC Conference on Manufacturing Modelling, Management, and Control, MIM 2013 - Proceedings
PublisherIFAC Secretariat
Pages489-494
Number of pages6
Volume46
Edition9
ISBN (Print)9783902823359
DOIs
Publication statusPublished - 1 Jan 2013
Externally publishedYes
Event7th IFAC Conference on Manufacturing Modelling, Management, and Control, MIM 2013 - Saint Petersburg, Russian Federation
Duration: 19 Jun 201321 Jun 2013

Other

Other7th IFAC Conference on Manufacturing Modelling, Management, and Control, MIM 2013
CountryRussian Federation
CitySaint Petersburg
Period19/06/1321/06/13

Keywords

  • Damage
  • Fatigued structure
  • Optimization
  • Risk
  • Uncertainty

ASJC Scopus subject areas

  • Control and Systems Engineering

Cite this

Nechval, N. A., Nechval, K. N., Purgailis, M., Rozevskis, U., Danovich, V., Ribakova, N., ... Moldovan, M. (2013). Solving the problems of inspection planning under parametric uncertainty of underlying models. In 7th IFAC Conference on Manufacturing Modelling, Management, and Control, MIM 2013 - Proceedings (9 ed., Vol. 46, pp. 489-494). IFAC Secretariat. https://doi.org/10.3182/20130619-3-RU-3018.00421