1991-09-01

Preliminary Study of Algorithm for Real-Time Flutter Monitoring 912001

This paper describes an algorithm for real-time flutter monitoring. An auto-regressive (AR) model with time varying coefficients is used for continuous monitor of the nonstationary flutter parameters. AR coefficient change rates as well as AR coefficients can be obtained recursively by the Kalman filter implementation. Using these AR coefficients and change rates, the natural frequencies and damping values of vibration modes can be estimated, and these values at a few seconds ahead are also predicted.
This algorithm was tested on simulated data and wind tunnel test data, and showed desirable estimation performance.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 43% off list price.
Login to see discount.
Special Offer: With TechSelect, you decide what SAE Technical Papers you need, when you need them, and how much you want to pay.
X