Modal Test on an External Prestressed Steel Beam

Jun Zhang; Zi Wen Zhou; Xiao Lu Ni; Hao Chen; Peng Cheng Zhu

doi:10.4028/www.scientific.net/AMR.446-449.3123

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 446-449Modal Test on an External Prestressed Steel Beam

Modal Test on an External Prestressed Steel Beam

Abstract:

Modal experiments are present to study dynamic behaviors of an external prestressed steel beam. The impact testing is introduced, when the input is fixed and FRFs are measured for multiple outs. Modal results indicate that the modal shape will increase when external prestressed load exists; the first order frequency of external prestressed load on the beam is higher than that of no load, but the amount of loads have little influence on the value of damping coefficients and the first order frequency; and there are denser frequencies with lager external prestressed load.

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Periodical:

Advanced Materials Research (Volumes 446-449)

Pages:

3123-3127

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.446-449.3123

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Online since:

January 2012

Authors:

Jun Zhang, Zi Wen Zhou, Xiao Lu Ni, Hao Chen, Peng Cheng Zhu

Keywords:

External Prestressed Structure, Frequency Response Function, Impact Testing, Modal Test, Steel Beam

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