Experimental investigation and modeling of dynamic performance of wave springs

摘要

This paper investigates vibration suppression potentials for a novel frictional system - a wave spring.udTwo different types of wave springs, crest-to-crest and nested ones, were used in this work. Compared withudnested wave springs, crest-to-crest wave springs have lower damping and a larger range for the linear stiffnessuddue to a reduced level of contact. Dynamic compressive tests, subject to different static compression levels,udare carried out to investigate the force-displacement hysteresis of individual wave springs. The stiffness isudshown to increase up to 800% when the static compression is at 40%. The crest-to-crest wave spring is shownudto provide loss factors up to 0.12 while nested ones as high as 0.80. Testing also showed that performance didudnot degrade between room temperature and 100°C. The effect of different spring materials, inner diameter andudflat spring width are also evaluated.