Effect of U-Bolt Tightening to Avoid Earlier Leaf Spring Failures

Leaf Spring Failure Analysis: Springs are a limited life component. Spring is one of major suspension part of the heavy commercial vehicle (HCV). The objective of this analysis is to reduce, early leaf spring failure modes by preventive maintenance & servicing of the leaf spring system. The fatigue life study and importance of shoot peening process to increase the life of leaf springs. Regardless of how well a spring is maintained or how favorable the operating conditions are, all springs will eventually fail from fatigue caused by the repeated flexing of the spring. Once the spring life limit is reached a fatigue failure will or has occurred.