Modeling and Stochastic Model Updating of Bolt-Jointed Structure

Table 4

Experimental and updated results of plate 1.

Mode shape	Experimental frequencies (Hz)		Experimental damping (%)		Updated frequencies (Hz)		Updated damping (%)
	Mean	SD	Mean	SD	Mean	SD	Mean	SD
First bending	73.46	1.057	0.0522	0.0059	73.56	1.157	0.0500	0.0072
First torsion	166.77	2.506	0.0473	0.0078	166.50	2.700	0.0503	0.0083
Second bending	202.40	2.882	0.0488	0.0092	202.88	3.293	0.0501	0.0087
Second torsion	346.89	5.124	0.0502	0.0095	346.77	5.414	0.0512	0.0078
Third bending	399.03	5.726	0.0509	0.0101	400.08	6.762	0.0503	0.0083
Third torsion	545.87	7.135	0.0519	0.0111	546.53	8.263	0.0522	0.0091