In aeronautics, aircraft braking systems are considered critical because of their significant influence on the aircraft's dynamic behavior and safety during taxiing. They are multiphysical in nature, using hydraulic and electrical generations to develop mechanical braking friction.The development of virtual prototypes of these systems is essential, as they help both industry and scientists to validate experimental results and predict maintainability.In this context, the work aims to develop a cooperative physical-geometrical simulation (co-simulation) approach for multi-disciplinary systems. The implementation concerns the study of the hydromechanical mechanism that controls, reproduces and regulates aircraft braking pressure.