Experimental Modal Test of the Laboratory Model of Steel Truss Structure

Civil and Environmental Engineering

Kortiš Ján¹  Škarupa Milan¹  Daniel Ľuboš¹  Ďuratný Maroš² 

[1] Department of Structural Mechanics and Applied Mathematics, Faculty of Civil Engineering, University of Žilina, Univerzitná 8215/1, 010 26 Žilina, Slovakia.;Research Centre of the University of Žilina, Univerzitná 8215/1, 010 08 Žilina, Slovakia;

关键词: experimental modal analysis;    mode shapes;    fourier transformation;    frequency response function;    natural frequencies;   

DOI  :  10.1515/cee-2016-0016

来源: DOAJ

【 摘 要 】

The experimental modal analysis is often used to validate the accuracy of dynamic numerical models. It is also a good tool to obtain valuable information about current condition of the structures that could help to determine residual lifetime. The quality of modal testing results is highly dependent on the proper estimation of the natural frequencies from the frequency response function. This article presents the experimental modal test of the laboratory steel structure in which the natural frequencies and mode shapes are determined.

【 授权许可】

Unknown