CONTROL DESIGN WITH TRANSFER FUNCTIONS: AN APPLICATION ILLUSTRATION.

A transfer function design theory for multivariable control design has been previously explained and applied to model data for the J-85 engine at sea level, 100% speed condition, and for the F100 engine at sea level, 67 degree power lever condition. Two basic relationships were highlighted: a synthesis equation and a design equation. In this paper, study of the J-85 model data is extended to include considerations of sensitivity with respect to model data. It is shown that the same synthesis equation is available for th extended design study, but that an additional design equation is implied by the use of a sensitivity specification. The method has the advantage of being straightforward, easy to understand, and easy to apply.