Efficient Method for Calculating the Composite Stiffness of Parabolic Leaf Springs with Variable Stiffness for Vehicle Rear Suspension

Table 1

Geometric parameters of a triple-leaf spring.

	Front	Rear
Length of half-spring (mm)			Spring width (mm)	60
	Main spring		Auxiliary spring
	Front	Rear	Front	Rear
Length of parabolic portion (mm)
End thickness (mm)
Root thickness (mm)