Application of Digital Videometrics in the Vibration Test of Suspension Cable

Application of Digital Videometrics in the Vibration Test of Suspension Cable

This paper devotes to vibration test based on digital videometrics. The new non-contact measuring technology has good dynamic performance and high accuracy. It is applied to the suspension cable of an indoor scaled model of FAST telescope and successfully gets the identified modal parameters such as...

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Veröffentlicht in:Applied Mechanics and Materials 2013-07, Vol.333-335, p.2401-2406
Hauptverfasser: Fan, Sheng Hong, Wu, Ya Jun, Wang, Qiang, Qi, Xiao Tong, Li, Cong, Gou, Zhi Yang
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Qi, Xiao Tong
Li, Cong
Gou, Zhi Yang
description This paper devotes to vibration test based on digital videometrics. The new non-contact measuring technology has good dynamic performance and high accuracy. It is applied to the suspension cable of an indoor scaled model of FAST telescope and successfully gets the identified modal parameters such as natural frequency and damping ratio. Special focus is put on the principle of digital videometrics and the testlayout. Besides, the related signal processing before parameter identification is also discussed.
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