Aeroelastic instability stoppers for wind tunnel models

Details Aeroelastic instability stoppers for wind tunnel models Aeroelastic instability stoppers for wind tunnel models

1981-06-17

1983-02-08

Swisher, S. Clement

Measuring and testing

Wind tunnel: aerodynamic wing and propeller study

G01M 900

Patent

active

043721583

ABSTRACT:
A mechanism 10 for constraining models 20 or sections thereof being wind tunnel tested which is deployed at the onset of aeroelastic instability, to forestall destructive vibrations in the model. The mechanism includes a pair of arms 11a and 11b pivoted to the tunnel wall 30 and straddling the model. Rollers 12a and 12b on the ends of the arms contact the model, and are pulled together against the model by a spring 17 stretched between the arms. An actuator mechanism 18 swings the arms into place and back as desired.

REFERENCES:
patent: 2721476 (1955-10-01), Pindzola et al.
patent: 2788661 (1957-11-01), Post et al.
patent: 3068690 (1962-12-01), O'Dair et al.
patent: 3070998 (1963-01-01), Schreiber
patent: 3587306 (1971-06-01), Bryan
patent: 3903740 (1975-09-01), Baldwin

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