DEVICE FOR MEASURING AERODYNAMIC FORCE AND TORQUE Russian patent published in 2019 - IPC G01M9/06 

FIELD: measuring equipment.

SUBSTANCE: invention relates to measurement equipment and is intended for measurement of components of vectors of aerodynamic force and torque acting on model of aircraft during research in wind tunnels (WT). Device comprises intramannel strain-gage weigher with a unit for attachment to the model, a belt suspension with one bow or tail and two central belts and an intermediate frame suspended in three points on the belts, wherein the intermediate frame is made of a closed shape with coverage of strain-gage weigher and an attachment assembly of strain-gage weigher to the model. Intermediate frame is supported by side pieces on central belts by means of rods. Connection of the intermediate frame with the bow or tail belt at the third support point is also performed by means of a rod. Connections of the intramannel strain-gage weigher with the model and the intermediate frame are made with using adapters, wherein the gaps between the model and the belt suspension, the intermediate frame and the adapter connecting the strain-gage weigher with the model, are greater than the maximum deformation of the weights and the frame under load.

EFFECT: technical result consists in reduction of measurement error, no need for methodological tests to determine resistance of belt suspension and reducing time for preparing tests.

3 cl, 1 dwg