This example models an elevator system in Simscape™ Multibody™. The system is comprised of belt-cable pulley circuits which control the movement of the elevator and the door mechanism. The cable is approximated to be extensible by using high stiffness springs between the belt cable ends and the elevator. The motor pulley is motion actuated based on the necessary elevator kinematics computed from the Floor Number inputs. Effects of people entering and leaving the elevator are modeled using general variable mass blocks.
Plot the elevator height, velocity, and acceleration.
Analyze the effects of cable stiffness on elevator dynamics .
 Vladic, J.; Dokic, R.; Kljajin, M.; Karakasic, M.(2011). Modelling and simulations of elevator dynamic behaviour