Proceedings of the Institution of Mechanical Engineers Part G Journal of Aerospace Engineering · 2011 · 16 citations · 3 references
EngineeringAerospace EngineeringMechanical EngineeringAerospace StructuresSemiconductor DevicesStructural DynamicsStability DerivativesStrain MeasurementStrain SensorsVibration MeasurementWind-tunnel TestingDamping MeasurementExperimental Damping MeasurementMach NumberMoment MeasurementSemiconductor Strain GaugesStrain Gauge MeasurementStrain Gauge SensorsWind Tunnel Measurement Of Stability Derivatives
The occurrence of small amplitudes of output signals from force and moment sensors used in the measurements of stability derivatives is a known problem. This article presents a solution to this problem by applying semiconductor strain gauges. Forced oscillation technique is used for the measurement of stability derivatives applied in the T-38 wind tunnel. The roll- and pitch-damping derivative measurements of the Modified Basic Finner Model at Mach numbers 0.6 and 1.75 were done using the semiconductor five-component strain gauge balance. The T-38 wind tunnel data are compared with the wind tunnel data of the Arnold Engineering Development Center-von Karman (AEDC, USA). Very good agreement is obtained between the data from these two wind tunnels.
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