Parametric Optimisation of Torsional Vibration Dampers for Vehicle Power Transmission System Considering Damping Effect and Lightweight Design

To reduce the torsional vibration of vehicle power transmission system (VPTS), a torsional vibration model with multiple degrees of freedom (MDOF) of VPTS was established. The scheme of equipping torsional vibration dampers (TVDs) on the driveshaft was employed by the calculation of the forced vibration and the free vibration of the VPTS. The energy method was used to optimize the parameters of single-stage, two-stage parallel and two-stage series TVDs based on the principle that balances the damping effect and lightweight design. On the basis of this, the parameters of the models incorporating TVD and elastic couplings were optimized. Results showed that the proposed method can ensure the damping effects of TVD and realize the lightweight design.