Springs are fundamental mechanical components
found in many mechanical systems. Developments in material, design
procedures and manufacturing processes permit springs to be made with
longer fatigue life, reduced complexity, and higher production rate.
Most springs are linear which means the resisting force is linearly
proportional to its displacement. Linear springs obey the Hooke's Law, F
= k × Dx Where F is the resisting force, k is the spring constant, and
Dx is the displacement. The most commonly used springs are Compression,
Tension, and Torsion.