Application of Accelerometers for Measuring Aerodynamic Forces in Short-Term Facilities

Abstract
Methods for restoring aerodynamic forces based on the use of measurement data by balance elements and an accelerometer have been expanded. A signal processing method has been developed that makes it possible to correct the measurement data of balance elements using additional data on the acceleration of support elements. Examples of the application of the proposed method under the conditions of a pulsed wind tunnel in experiments on massive models, both with constant and decreasing flow parameters during the test, are given. An increase in the measurement accuracy of single-component force-measuring sensors is shown.

Keywords
accelerometer, balance element, aerodynamic forces, oscillations, aerodynamic experiment, impulsive change in flow parameters
Funding
The research was carried out within the state assignment of Ministry of Science and Higher Education of the Russian Federation (project No 121030500162-7). The study was conducted at the Equipment Sharing Center «Mechanics» of ITAM SB RAS.
УДК 534.1, 533.6.07

Application of Accelerometers for Measuring Aerodynamic Forces in Short-Term Facilities