1 GraSMech – Multibody 1 Computer-aided analysis of multibody dynamics (part 2) Multiphysics modelling of railway vehicle equipped with pneumatic suspension Nicolas Docquier (nicolas.docquier@uclouvain.be) GraSMech – Multibody 2 Contents Railway vehicle description Classical railway vehicle Secondary pneumatic suspension Modelling and numerical methods Multibody Pneumatic Co-simulation Application Delta Q/Q Curve entry GraSMech – Multibody 3 Contents Railway vehicle description Classical railway vehicle Secondary pneumatic suspension Modelling and numerical methods Multibody Pneumatic Co-simulation Application Delta Q/Q Curve entry