LAUSR

Airframe/propulsion integrated aerodynamic performance evaluation is one of the key technologies for hypersonic development. Hypersonic aircraft has the characteristics of high flatness ratio which its internal space is fully limited. If the force measurement balance takes up a lot of space when installed, it will make it difficult to install the engine and develop the wind tunnel test. Regarding the issue above, the force measurement and support integrated device is designed. First, the analysis of strength and modal are carried out to verify the response characteristics of the strength and frequency for the proposed device. Second, the integrated device was statically calibrated. The calibration result showed that the device has good linearity, sensitivity, and inter-channel interference. Finally, the aerodynamic load measurement tests under the Ma5.5, Ma6.0, Ma6.5 condition were conducted for a 2 m aircraft model in the $\Phi 600$ pulse combustion wind tunnel. The maximum measurement error is 6.45%, which is the lift force output result in the Ma5.5. It has good consistency with the existing mature box balance. Therefore, the proposed device can meet the force test requirements of the hypersonic wind tunnel test.