Encapsulation Based Method for Natural Frequency Identification of Deployable Solar Arrays with Multiple Plates

Table 6

Main material parameters of the ground verification test system.

Material	Main parameters
Acrylic plate	EX (MPa)	EY (MPa)	GXY (MPa)	GXZ (MPa)	GYZ (MPa)	Poisson’s ratio	Density (kg·t^−1)
	3522	3730	1282	19300	19900	0.3	1.12e − 9
Aluminium alloy	E (MPa)					Poisson’s ratio	Density (kg·t^−1)
	68000					0.3	2.7e − 9