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  • Open Daily: 10am - 10pm
    Alley-side Pickup: 10am - 7pm

    3038 Hennepin Ave Minneapolis, MN
    612-822-4611

Open Daily: 10am - 10pm | Alley-side Pickup: 10am - 7pm
3038 Hennepin Ave Minneapolis, MN
612-822-4611
Exploratory Studies in Generalized Predictive Control for Active Gust Load Alleviation

Exploratory Studies in Generalized Predictive Control for Active Gust Load Alleviation

Kvaternik, Raymond G.
Nasa Technical Reports Server (Ntrs)
Et Al

Paperback

General Political Science

ISBN10: 1287260063
ISBN13: 9781287260066
Publisher: Bibliogov
Published: Jul 30 2013
Pages: 110
Weight: 0.47
Height: 0.23 Width: 7.44 Depth: 9.69
Language: English
The results of numerical simulations aimed at assessing the efficacy of Generalized Predictive Control (GPC) for active gust load alleviation using trailing- and leading-edge control surfaces are presented. The equations underlying the method are presented and discussed, including system identification, calculation of control law matrices, and calculation of commands applied to the control effectors. Both embedded and explicit feedforward paths for inclusion of disturbance effects are addressed. Results from two types of simulations are shown. The first used a 3-DOF math model of a mass-spring-dashpot system subject to user-defined external disturbances. The second used open-loop data from a wind-tunnel test in which a wing model was excited by sinusoidal vertical gusts; closed-loop behavior was simulated in post-test calculations. Results obtained from these simulations have been decidedly positive. In particular, results of closed-loop simulations for the wing model showed reductions in root moments by factors as high as 1000, depending on whether the excitation is from a constant- or variable-frequency gust and on the direction of the response.

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