OH-58 tailboom damage detection study

Stephen C. Conlon, Samuel S. Evans, Edward C. Smith, Peter Q. Romano, Andrew R. Barnard

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

2 Scopus citations

Abstract

This study focused on the development and performance assessment of structural damage detection technology. The targeted application was the OH-58D Kiowa Warrior tailboom. The OH-58 tailboom structure has been experiencing fatigue cracking requiring burdensome scheduled inspections. Newly developed structural health monitoring technologies are desired which could be applied to the OH-58 to eliminate some or all of the manual tailboom inspections. A survey of available OH-58 tailboom documented damage showed fatigue cracking at many locations, implying that any new detection system would need to cover the entire tailboom structure, as opposed to more simplistic hot spot monitoring. In this work nonlinear vibration spectroscopy based damage detection techniques were developed and applied to relevant laboratory test structures including an actual OH-58D tailboom. The results showed the nonlinear techniques are capable of detecting small fatigue cracks, with minimal required sensor-actuators to cover the entire tailboom structure, and offer sensitivity benefits over traditional sensor-actuator intensive linear ultrasonic techniques. An aircraft integration study was also performed, establishing weight and power estimates for several potential operational scenarios.

Original languageEnglish (US)
Title of host publication68th American Helicopter Society International Annual Forum 2012
Pages2542-2555
Number of pages14
StatePublished - Aug 17 2012
Event68th American Helicopter Society International Annual Forum 2012 - Fort Worth, TX, United States
Duration: May 1 2012May 3 2012

Publication series

NameAnnual Forum Proceedings - AHS International
Volume4
ISSN (Print)1552-2938

Other

Other68th American Helicopter Society International Annual Forum 2012
Country/TerritoryUnited States
CityFort Worth, TX
Period5/1/125/3/12

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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