Modelling and simulation of the dynamic behaviour of a ball screw system using transmission line modelling technique

This paper presents a new approach for the modelling of a screw shaft including the axial and torsional dynamics in the same model. The model includes the distributed parameter dynamics of the ball screw system and the effect of mass distribution. This is based on the flexibility of the Transmission Line Matrix Method (TLM) to develop lumped and distributed parameter systems. The procedure for the synchronisation of both axial and torsional effects is presented in detail.