Commenced in January 2007
Frequency: Monthly
Edition: International
Paper Count: 31515
Development of Admire Longitudinal Quasi-Linear Model by using State Transformation Approach

Authors: Jianqiao. Yu, Jianbo. Wang, Xinzhen. He


This paper presents a longitudinal quasi-linear model for the ADMIRE model. The ADMIRE model is a nonlinear model of aircraft flying in the condition of high angle of attack. So it can-t be considered to be a linear system approximately. In this paper, for getting the longitudinal quasi-linear model of the ADMIRE, a state transformation based on differentiable functions of the nonscheduling states and control inputs is performed, with the goal of removing any nonlinear terms not dependent on the scheduling parameter. Since it needn-t linear approximation and can obtain the exact transformations of the nonlinear states, the above-mentioned approach is thought to be appropriate to establish the mathematical model of ADMIRE. To verify this conclusion, simulation experiments are done. And the result shows that this quasi-linear model is accurate enough.

Keywords: quasi-linear model, simulation, state transformation approach, the ADMIRE model.

Digital Object Identifier (DOI):

Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1228


[1] Forssell. L. S, Hovmark. G, Hyden. A, and Johansson. F, "The Aero-Data Model in a Research Environment ´╝êADMIRE´╝ë for Flight Control Robustness Evaluation," Technical Report. GARTUER/TP-119-7.2001.
[2] Shamma. J. S, and Cloutier. J. R, "Gain-scheduled missile autopilot design using linear parameter varying transformations," Journal of Guidance, Control and Dynamics .J., 1993, 16(2): 256-263..
[3] Xingfang. Qian, Ruixiong. Lin, Yanan. Zhao, Missile Flight Dynamics. Beijing, CA: Beijing Institute of Technology Press, 2000, pp.36-53
[4] Andres. Marcos, and Gary J. Balas, "Development of Linear-Parameter-Varying Models for Aircraft," Journal of Guidance, Control, and Dynamics. J., 2004, 27(2):218-228.
[5] Shin, J. Y., "Worst-Case Analysis and Linear Parameter-Varying Gain-Scheduled Control of Aerospace System," Ph.D. Dissertation, Dept. of Aerospace and Engineering Mechanics, Univ. of Minnesota, Minneapolis, Oct. 2000.
[6] Papageorgiou, G., and Glover, K., "Design, Analysis and Flight Testing of a Robust Gain Scheduling Controller for the VAAV Harrier," DERA, Tech. Rep. TR-CUED/F-INFENG/TR.368, Univ. of Cambridge, U.K., Feb. 2000.
[7] Tan, W., "Applications of Linear Parameter-Varying Control Theory," Master-s Thesis, Dept. of Mechanical Engineering, Univ. of California at Berkeley, May 1997.
[8] Papageorgiou, G., "Robust Control System Design H∞ Loop Shaping and Aerospace Application," Ph.D. Dissertation, Dept. of Engineering, Univ. of Cambridge, Cambridge, England, U.K., July. 1998.