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Output-only Modal Identification of Tensegrity Structures

Autor(en):


Medium: Fachartikel
Sprache(n): Englisch
Veröffentlicht in: Engineering Structures and Technologies, , n. 2, v. 8
Seite(n): 52-64
DOI: 10.3846/2029882x.2016.1175323
Abstrakt:

Tensegrity systems are a special class of spatial reticulated structures that are composed of struts in compression and cables in tension. In this paper, the performance of stochastic subspace algorithms for modal identification of complex tensegrity systems is investigated. A sub-class algorithm of the Stochastic Subspace Identification family: the Balanced Realization Algorithm is investigated for modal identification of a tripod simplex structure and a Geiger dome. The presented algorithm is combined with a stabilization diagram with combined criteria (frequency, damping and mode shapes). It is shown that although the studied structures present closely spaced modes, the Balanced Realization Algorithm performs well and guarantees separation between closely-spaced natural frequencies. Modal identification results are validated through comparisons of the correlations (empirical vs. model based) showing effectiveness of the proposed methodology.

Structurae kann Ihnen derzeit diese Veröffentlichung nicht im Volltext zur Verfügung stellen. Der Volltext ist beim Verlag erhältlich über die DOI: 10.3846/2029882x.2016.1175323.
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  • Reference-ID
    10325963
  • Veröffentlicht am:
    21.07.2019
  • Geändert am:
    21.07.2019