论文信息 - A nonlinear indicial prediction tool for unsteady aerodynamic modeling

A nonlinear indicial prediction tool for unsteady aerodynamic modeling

The present paper describes a new tool kit which can be used to model the time-dependent response of nonlinear systems. The Indicial Prediction System (IPS) applies nonlinear indicial theory to solve complex unsteady problems, such as those associated with nonlinear aerodynamic phenomena during maneuver of aircraft. The functionality of this system and its capabilities are described through numerous examples. An important demonstration of the method is its application to the prediction of the aerodynamic loads on a 65-degree delta wing undergoing forced body-axis rolling motions at high angles of attack.

Patrick Reisenthel | Matthew Bettencourt | James Mayatt | Deborah Grismer

[1] Jerry E. Jenkins,et al. Body-axis rolling motion critical states of a 65-degree delta wing , 1993 .

[2] Gregory A. Addington,et al. Critical states and flow structure on a 65-deg delta wing , 1996 .

[3] Patrick Reisenthel,et al. Development of a nonlinear indicial model using response functions generated by a neural network , 1997 .

[4] Patrick Reisenthel,et al. Extraction of nonlinear indicial and critical state responses from experimental data , 1999 .

[5] L. B. Schiff,et al. Mathematical modeling of the aerodynamic characteristics in flight dynamics , 1984 .

[6] Deborah S. Grismer,et al. Critical-State Transients for a Rolling 65-Degree Delta Wing , 1996 .

[7] William E. Faller,et al. Real-time prediction and control of three-dimensional unsteady separated flow fields using neural networks , 1994 .

[8] Gary T. Chapman,et al. Nonlinear problems in flight dynamics involving aerodynamic bifurcations , 1985 .

[9] Patrick Reisenthel,et al. Development of a nonlinear indicial model for maneuvering fighter aircraft , 1996 .

[10] Patrick Reisenthel. Application of nonlinear indicial modeling to the prediction of a dynamically stalling wing , 1996 .

[11] David Nixon. Unsteady transonic aerodynamics , 1989 .

[12] J. Myatt. Modeling the rolling 65-degree delta wing with critical state encounters , 1997 .