29. The method according to claim 26 , wherein analyzing the accuracy of each primary linear engine model and eliminating inaccurate primary linear engine models therefrom to provide a secondary set of linear engine models comprises preliminary linear engine model filtering by comparing, for a number of primary linear engine models, dynamic responses of primary linear engine models against dynamic responses of nonlinear engine computational models.
29. The method according to claim 26 , wherein analyzing the accuracy of each primary linear engine model and eliminating inaccurate primary linear engine models therefrom to provide a secondary set of linear engine models comprises preliminary linear engine model filtering by comparing, for a number of primary linear engine models, dynamic responses of primary linear engine models against dynamic responses of nonlinear engine computational models. 30. The method according to claim 29 , analyzing the accuracy of each primary linear engine model and eliminating inaccurate primary linear engine models therefrom to provide a secondary set of linear engine models further comprises generating metrics for each primary linear engine model and eliminating primary linear engine models exceeding predefmed conditions.