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Erschienen in:
2011 | OriginalPaper | Buchkapitel
Experimental Modal Analysis of an Inflatable, Selfrigidizing Toroidal Satellite Component
verfasst von : M. Danesh Pazhooh, M. A. Dokainish, S. Ziada
Erschienen in: Experimental and Applied Mechanics, Volume 6
Verlag: Springer New York
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Modal testing of an extremely flexible self-rigidizing inflatable torus with regular pattern of hexagonal domes was carried out. For the first time the feasibility of using a non-contact in-house fabricated electromagnetic excitation in modal testing of such an ultra-flexible inflatable structure was investigated. Non-contact transducers, laser displacement sensors, were used in this study. Non-contact excitation and measurement technique were used to avoid frequency shift problems due to inertial loading on the structure. Within the frequency bandwidth of 1-25 Hz, four in-plane and four out of plane modes’ damped natural frequencies were extracted and compared with prior studies.