Trajectory capture test system for simultaneous separation simulation of double external stores

Abstract

The invention provides a trajectory capture test system for simultaneous separation simulation of double external stores, and belongs to the field of high-speed wind tunnel test technology and aircraft flight mechanics. The trajectory capture test system comprises a half-arm attack angle mechanism installed on a wind tunnel test section, and an aerial carrier model is fixedly connected with the half-arm attack angle mechanism through an aerial carrier supporting rod; a missile-loaded base is connected with the wall surface of the wind tunnel test section through a vertical movement mechanism, parallel bottom plates are connected with the missile-loaded base through rotating shafts, three-degree-of-freedom parallel mechanisms are installed on the parallel bottom plates respectively, the other ends of the three-degree-of-freedom parallel mechanisms are connected with a movable platform, and a rolling driving mechanism is arranged in the movable platform; and the movable platform is connected with missile-loaded balances and missile-loaded models through missile-loaded support rods. According to the invention, the two missile-loaded balances are used for respectively measuring the aerodynamic force and torque applied to the missile-loaded models, the motion modes of the two missile-loaded models are inversely solved, the motion of each driving device is controlled, the multi-degree-of-freedom position and attitude change of the two missile-loaded models is realized in a wind tunnel test section, and the simulation of the motion trajectory of the double-external store model is realized.

Description

Technical field[0001]The present invention relates to a trajectory capture test system that simultaneously separates the simulated two outer housing for aerospace, airlines, and trajectory of airborne and outer housing separation, belonging to high-speed wind tunnel test technology, aircraft flight Mechanical field.Background technique[0002]Separate, the launch of the aircraft, the launch of the aircraft flooded, and the submarente is throwing, and the shelling body and the sprout separation are separated, the separation body and the parent are in a complex mutual interference flow field, poor separation characteristics Not only affects the effect, but also leads to multiple collisions, but even endanger the safety of the mother. Therefore, it is necessary to understand the trajectory of the process and kinetic properties of the process and kinetic properties through the ground wind tuning test. "CAPTIVE TRACTORYSTEM-CTS) is also necessary.[0003]With the increase in the application ...

AI Technical Summary

Problems solved by technology

The existing CTS test technology in China can only realize the test simulation of one separation body, and the other separation body can only be fixed in position during the test. The deviation of the test results from the real situation is greater, and it is difficult to meet the test requirements.

[0004] The Russian T109 wind tunnel adopts a Cartesian coordinate structure, which can measure the separation characteristics of two external objects at the same time. However, because the separation body model is supported by a cantilever beam, the total length of the cantilever beam is about 4 to 5 times the length of the separation body model. Even longer, resulting in large elastic deformation during high-speed wind tunnel tests, and there are problems such as accumulation of errors among the structures that are difficult to eliminate. When the separation characteristics of two external objects are tested for this structure layout, there is a system blockage. Large size, poor rigidity, low test accuracy, etc., cannot meet the test requirements when doing hood deployment tests

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