Bifurcation Analysis with Aerodynamic-Structure Uncertainties by the Nonintrusive PCE Method

Table 4

Statistics information of bifurcation velocity for three models.

	Bifurcation PDF; () ()	Bound variation; ()	Bifurcation PDF; () ()	Bound; variation; ()	Bifurcation velocity (deterministic)
Aerodynamic	(11.5 m/s, 12.1 m/s)	(−0.042, 0.008)	(10.8 m/s, 12.1 m/s)	(−0.100, 0.008)	12 m/s
Structure	(11.3 m/s, 12.3 m/s)	(−0.058, 0.025)	(10.8 m/s, 12.7 m/s)	(−0.100, 0.058)
Aerodynamic + Structure	(11 m/s, 12.3 m/s)	(−0.083, 0.025)	(9.8 m/s, 12.7 m/s)	(−0.183, 0.058)