μ Tools for flight control robustness assessment

被引:6
|
作者
Döll, C
Ferreres, G
Magni, JF
机构
[1] Off Natl Etud & Rech Aerosp, DCT DCSD, Syst Control & Flight Dynam Dept, F-31055 Toulouse 04, France
[2] SUPAERO Ecole Natl Super Aeronaut Espace, F-31055 Toulouse 04, France
关键词
robustness; mu framework; flexible structures; phase and delay margins; non-linear analysis;
D O I
10.1016/S1270-9638(99)80041-8
中图分类号
V [航空、航天];
学科分类号
08 ; 0825 ;
摘要
The aim of this paper is to emphasize the usefulness of the CL framework for the analysis of the robustness properties of flight control systems. Model uncertainties may correspond, either to parametric uncertainties (e.g. in the aerodynamic model or in the value of the trim point) or to neglected high frequency dynamics (e.g. in the actuators or sensors). We especially show that several classical problems (computation of a phase or delay margin, non-linear analysis of a PIO effect, computation of a frequency domain overshoot) can be extended to an uncertain aircraft model. A flexible model of the aircraft can, moreover, be taken into account. (C) Elsevier, Paris.
引用
收藏
页码:177 / 189
页数:13
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