Dynamic stability of centrifugal pendulum vibration absorbers allowing a rotational mobility

Centrifugal pendulum vibration absorbers (CPVA) are used in the automobile industry to reduce vibrations of transmission system. These passive devices made several masses oscillating along a given trajectory relative rotor. In this paper, dynamic stability new class CPVA is investigated. The particularity that now admit significant rotation motion rotor, addition traditional translation motion. efficiency such optimal for perfect synchronous masses. However, unison can be broken benefit energy localisation on absorber, leading loss mitigation performances. To assess devices, dynamical model based an analytic perturbation method established. aim predict analytically and jumps response. validity confirmed through comparison with both numerical resolution system’s dynamics experimental study.