Abstract
Relations between the inter-leaf frictional force of laminated springs and the sum of vertical forces acting on the extreme points of the leaves are investigated statistically.
As the frictional force seems to be in proportion to the vertical force, the regression lines with the 95% confidence limit lines are determined for the laminated springs and the stacked single leaf springs respectively.
Using those rerations, a method of estimating the frictional force from the vertical one is proposed, which may be useful in the dynamic designing of leaf springs.
