Probabilistic Analysis for Structures with Hybrid Uncertain Parameters

Table 9

Distribution of the random variables for the wind turbine tower.

Name	Uncertain variables	Expectation	Standard deviation	Distribution type
X-direction force (KN)		[44.6, 51.5]	1.78	Normal
Y-direction force (KN)		[880, 960]	35	Normal
Z-direction force (KN)		[1864, 1960]	75	Normal
X-direction moment (KN·m)		[9247, 9500]	240	Normal
Y-direction moment (KN·m)		[112, 120]	4.5	Normal
Z-direction moment (KN·m)		[4281, 4490]	171	Normal
Density (kg/mm^3)			—	—
Elasticity modulus (Pa)	E		—	—
Poisson’s rate		0.2	—	—