UM Loco  /  Pneumatic suspension

Pneumatic suspension

The UM Pneumatic Systems module is used for simulation of pneumatic suspensions of coaches. The module allows including the main elements of pneumatic suspension into a multibody model of a vehicle for dynamic modeling. The following pneumatic elements are used in the suspensions:

  • air springs
  • auxiliary chamber
  • reservoir with compressed air
  • compressor
  • leveling valve
  • pneumatic lines

In particular, the user can model a process of a leveling valve operation for supporting the desired suspension height when the coach load is changed.


Example of pneumatic system for a coach bogie


Pneumatic suspension with leveling valve