A STUDY OF ENGINE SIMULATION METHODS FOR OPERATIONAL FLIGHT TRAINERS (PHASE ⅠREPORT)

摘要

The first phase of an investigation to determine optimum equations to be used in engine simulators for operational flight trainers has shown that current methods of designing such simulators do not use theoretical equations, but instead use empirical equations which result from the application of various curve-fitting techniques to known engine performance data. A program to develop suitable theoretical equations has been started. Existing methods of simulating engines on analog computing equipment have been examined and analyzed in terms of complexity, flexibility, and accuracy. The methods considered include not only those in use by OFT (Operational Flight Trainer) manufacturers but also others proposed by or in use by various research and development organizations. Several methods of generating functions of two variables have been thoroughly examined, and design formulas applicable for specified error tolerance have been developed.