Multidisciplinary real-time simulation system of commercial aircraft hydraulic system based on AMESim and Veristand

摘要

Hydraulic system, one of the most important system in commercial aircraft, needs thorough testing procedures to validate security and economy requirements. Real-time simulation technology which is one of the most important procedures for testing and validation for hydraulic system designs can meet this demand. This paper establishes the realtime simulation platform of the hydraulic system of large commercial aircraft with the AMESim and VeriStand. The hydraulic system model built in AMESim, which is encapsulated into a dynamic link library file, will be downloaded to the Real Time (RT) operating system when joins the connection interface with VeriStand. The RT hydraulic system model can contact to aircraft control system with VMIC reflective memory network then it can check the flight safety on ground. The RT model transmits all the system state to a supervisor computer which is monitored by the developed graphics user interface. At the same time the supervisor computer sends command to the RT model to change system state which can be used as failure or damage cases. This platform has advantages in high flexible and high accuracy which has a great potential in aircraft hydraulic system design and validation. Three simulation tests are carried out to illustrate the effectiveness of the platform.