Related Resources: spring material
Torsion Applied Spring Stiffness Constant Equations and Calculator
Machine Design and Engineering
Spring Design and Engineering
Vibration Engineering and Design
Torsion Applied Spring Stiffness Constant Equations and Calculator
kt = ( E d4 ) / ( 64 n D )
kt = Spring Stiffness (lb-in / rad)
d = Wire Diameter (in),
D = Mean Coil Diameter (in),
n = Number of Active Coils,
E = Young's Modulus (lb/in2)
Reference Harris, Shock and Vibration Handbook