Mechanical characteristic and analytical model of novel air spring for ergonomic mattress

Open Access

Table 1

Information of material and specimen.

Item	Name	Structure	Parameters
Material	TPU & fabric composite	Thin film layer	Film thickness: 0.5 mm
Material	TPU & fabric composite	Fabric layer	Fabric density: 840 D
Sspecimen	Air spring	One chamber	h: assembly height
		Two chambers	R: radius of effective area
		Three chambers	h₀: height of single air chamber inflated fully

Notice: The radius of the plate is described as R₀ when the air spring does not expend.

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