Application of system-identification techniques to health monitoring of on-orbit satellite boom structures

Yingtao Liu, Seung Bum Kim, Aditi Chattopadhyay, Derek Doyle

Research output: Contribution to journalArticle

37 Citations (Scopus)

Abstract

The integration of composites into spacecraft is challenged by the risk of damage initiation and propagation during storage, launch, and service life. Elastically deployable composite booms are being developed for space utility. Matrix cracks are considered a primary form of damage caused by packaging before launch. However, while on orbit, most damages are induced by the environmental effects on the polymers. A well-developed structural health monitoring system will provide information for the dynamic control of the satellite and the condition of the deployable mechanisms on the space vehicle. A structural health monitoring methodology, based on the system-identification techniques, is proposed to identify the structural degradation in laminated composite booms. Nondestructive evaluation techniques, frequency-response analysis and autoregressive with exogenous input models are used to approximate the transfer functions between input and output sensing signals. Structural degradation is identified by examining the change of transfer functions at different storage states. A single-input/single-output approach is adopted in this paper. The proposed methodology is validated through experimentation in which matrix cracking is gradually induced by packaging the sample.

Original languageEnglish (US)
Pages (from-to)589-598
Number of pages10
JournalJournal of Spacecraft and Rockets
Volume48
Issue number4
DOIs
StatePublished - Jul 2011

Fingerprint

boom
health monitoring
satellite orbits
system identification
Structural health monitoring
health
Transfer functions
Identification (control systems)
Packaging
Orbits
structural health monitoring
Health
Satellites
damage
transfer function
packaging
Degradation
transfer functions
composite materials
Monitoring

ASJC Scopus subject areas

  • Aerospace Engineering
  • Space and Planetary Science

Cite this

Application of system-identification techniques to health monitoring of on-orbit satellite boom structures. / Liu, Yingtao; Kim, Seung Bum; Chattopadhyay, Aditi; Doyle, Derek.

In: Journal of Spacecraft and Rockets, Vol. 48, No. 4, 07.2011, p. 589-598.

Research output: Contribution to journalArticle

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