The Demonstrator of Helicopter Structural Health Monitoring Technique

Expanding interest to structural health monitoring (SHM) stimulates the development of those systems based on different physical methods and advanced tools. The introduction to this document explores trial applications of operational modal analysis (OMA) as one of the most promising approaches for structural integrity monitoring of operating facilities. This paper considers different aspects of practical realization of the SHM system of the operating helicopter, including sensor type selection and costs-weight parameter optimization. The operating demonstrator of the SHM system is built based on the co-axial helicopter Ka-26. The comprehensive and cost-effective measurement system that is able to provide vibrations measurements of both fixed and rotating helicopter structures is also considered. Brief information about finite element method (FEM) modeling of the entire demonstrator and the rotor blade is presented. The modeled modal properties of the demonstrator’s structures are discussed and specialties of global and local modes are considered for faults identifying purposes. Additionally, there are results of numerical experiments and estimation about the sensitivity of modal parameters to seeded faults. The capabilities of the SHM system for seeded faults detection are positive and can be put in a conclusive resume.

Language

  • English

Media Info

  • Media Type: Web
  • Features: References;
  • Pagination: pp 213-226
  • Monograph Title: Reliability and Statistics in Transportation and Communication: Selected Papers from the 20th International Conference on Reliability and Statistics in Transportation and Communication, RelStat2020, 14-17 October 2020, Riga, Latvia
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 01880953
  • Record Type: Publication
  • ISBN: 9783030684754
  • Files: TRIS
  • Created Date: Apr 24 2023 4:19PM