Small asymmetrical reentry body aerodynamic force measuring device supported by air bearing

The invention provides a small asymmetrical reentry body aerodynamic force measuring device supported by an air bearing.The device achieves measuring through an inner and outer balance nest combination measuring method, a center ventilation rod type six-component balance assembly is selected in an inner balance, and a hollow spoke type structure is adopted in an outer balance, and the inner balance and the outer balance are connected through the air bearing with tiny rolling frictional damping.The small asymmetrical reentry body aerodynamic force measuring device comprises a tail fulcrum bar, an air bearing supporting device, a model back section and a model front section.The tail fulcrum bar is fixedly connected with the air bearing supporting device and a model mechanism.The air bearing supporting device is connected with the model back section, and the model back section and the model front section are connected through threads.The aerodynamic force measuring device is simple in structure, small in size and high in integral rigidity.Different measurement components are distributed on the inner balance and the outer balance according to measurement load characters and balance structure constraint conditions, the aerodynamic force measuring device is suitable for hypersonic speed wind tunnel tests of small asymmetrical reentry body aerodynamic force measuring and especially can control measurement interference of other large load components on small rolling moment, and the measuring precision is improved.