A​bstract

Nacelle thrust reverser unit design requires assessment of the operational and limit loads in order to size its actuation system. Numerical simulation is a key contributor to the verification and validation (V&V) process for system performance as well as failure cases impact analysis (slider jamming, actuator malfunction, etc.). Simulation of such a system encompasses several domains such as hydraulics (actuation), controls, kinematics, structure interaction and aerodynamic loads. While the system simulation help model hydraulic network, kinematics and controls, finite element model (FEM) and computational fluid dynamics (CFD) feed the model with structure flexibility and aero loads respectively. Traditional method [1], [2] of coupling system with multi-body solver (cosimulation) is replaced with a standalone state of the art approach. The ability to perform multi-Physics simulation under a single platform avoids the intrinsic issues in co-simulation and eases the hydro-mechanical frequency coupling that often diverges. Standalone model has the advantage to be fast to run and eases the Model Based System Engineering (MBSE) approach thus allowing cost saving and lead time reduction.