A Vibration Reliability Analysis Method for the Uncertain Space Beam Structure

Table 2

Natural frequency intervals of GARTEUR model.

Frequencies	Sensitivity monotonicity method (Hz)	Optimization algorithm (Hz)
	[5.1252, 5.2395]	[5.1252, 5.2393]
	[5.1954, 5.2452]	[5.1955, 5.245]
	[24.2211, 24.2211]	[24.2211, 24.2211]
	[33.4799, 35.495]	[33.4799, 35.4919]
	[38.8969, 39.3312]	[38.8971, 39.3310]
	[41.1152, 42.6744]	[41.1160, 42.6744]