低启动载荷超声速风洞启停运行方法
By using a model support system with normal degrees of freedom during the start-up and shutdown of a supersonic wind tunnel, the test model is offset to the offset position before the wind tunnel starts up, and then returned to the original position for testing after the flow field is established. This solves the problems of excessive load and high safety risks during the start-up and shutdown of a supersonic wind tunnel, and achieves wind tunnel operation with zero interference, high efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA AERODYNAMIC RES & DEV CENT EQUIP DESIGN & TESTING TECH INST
- Filing Date
- 2026-05-15
- Publication Date
- 2026-07-17
AI Technical Summary
During the start-up and shutdown process of existing supersonic wind tunnels, the test model is subjected to excessive starting load, resulting in high model vibration and safety risks. Furthermore, existing load reduction techniques suffer from severe interference, low efficiency, and poor safety.
A model support system with normal degree of freedom is adopted. Before the wind tunnel is started, the test model is moved to the offset position along the normal direction. After the flow field is established, it is moved back to the axis position for testing. After the test, it is offset again to stop the wind tunnel. The optimal offset position is determined by numerical calculation to reduce the load.
It achieves zero-interference, high-efficiency, and safe wind tunnel start-up and shutdown operation, significantly reduces the load on the test model during start-up and shutdown, improves the safety and efficiency of wind tunnel operation, and ensures the accuracy of test data.
Smart Images
Figure CN122192685B_ABST