Scheduling Turbofan Engine Control Set Points by Semi-Infinite Optimization

It is shown that modern Semi-Infinite Optimization Methods provide a powerful method for determining the operating schedules of control set points for advanced turbofan engines. It is shown that these methods give the engineer considerable design freedom and shows how these methods can be used to develop engine schedules which optimize complex performance objectives and explicitly satisfy performance requirements on engine variables. This approach is also shown to provide insights as to the limits of engine performances and the control requirements of the engine. These methods are illustrated by determining portions of the steady state and transient operating schedules of a state-of-the-art single bypass turbofan engine.