Wind tunnel model support with vibration detection balance and countervibration means

摘要

A support (11) for a wind tunnel model (10) has a sting (12) provided with a balance (16) carrying the model (10). On the basis of deformations of the balance (16), the wind forces acting on the model (10) can be measured. The balance (16) together with the model (10) forms a vibrating mass-spring system. For elimination of the vibrations, a counter vibration generator (15) is provided, arranged in serial arrangement with the balance (16).The counter vibration generator (15) is controlled, in dependence on signals of the balance (16) or other sensors describing the movements of the model (10), to cause counter vibrations for compensating the natural vibrations of the model (10).