Multi-degree-of-freedom stage-separation test device and test method

Abstract

The invention discloses a multi-degree-of-freedom stage-separation test device, and belongs to the field of carrier rocket stage-separation tests. The multi-degree-of-freedom stage-separation test device comprises a test rack car, a yaw rotating shaft, a U-shaped supporting frame, a first pitching support lug and a second pitching support lug. The U-shaped supporting frame comprises a cross beam and vertical beams, wherein the vertical beams are fixed to the two ends of the cross beam and parallel to each other. One end of the rotating shaft penetrates into the middle of the cross beam so that the U-shaped supporting frame can rotate relative to the yaw rotating shaft. The first pitching support lug and the second pitching support lug are oppositely fixed to the vertical beams of the U-shaped supporting frame, located in the same plane and used for supporting separating bodies. The invention further discloses a stage-separation test method using the multi-degree-of-freedom stage-separation test device. According to the multi-degree-of-freedom stage-separation test device and the multi-degree-of-freedom stage-separation test method, the stage-separating process can be simulated actually under the multi-degree-of-freedom condition.

Description

technical field [0001] The patent of the invention belongs to the field of stage separation test of launch vehicle, and specifically relates to a multi-degree-of-freedom stage separation test device and test method. Background technique [0002] During the flight of the launch vehicle into orbit, in order to reduce the negative mass, the unnecessary mass is usually thrown away by inter-stage separation after the work of each stage of the rocket is completed. Therefore, the separation between stages is a key sequence in the flight process of the launch vehicle, which directly affects the success or failure of the flight test. [0003] There are two methods of interstage separation, hot separation and cold separation, and generally consist of detonating devices and separation mechanisms required to realize various separation functions, wherein the separation mechanism includes separation unlocking devices and separation impulse devices. Under the action of the separation mech...

AI Technical Summary

Problems solved by technology

[0008] In view of the above defects or improvement needs of the prior art, the present invention provides a multi-degree-of-freedom inter-stage separation test device and test method. The yaw and pitch in the middle, so that the actual separation process can be simulated more realistically, and the defect that the traditional test device cannot simulate the movement of the separation body in the two directions of pitch and yaw is eliminated.

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