Impact level evaluation test platform for wire type separation device

Abstract

The invention discloses an impact level evaluation test platform for a wire type separation device. The impact level evaluation test platform comprises a test platform body; a plate surface is arranged on the test platform body; a first-level test point is arranged on the plate surface; the top of the first-level test point is provided with a second-level test point; a third-level test point is arranged at the top of the second-level test point; a connecting end plate is arranged at one end of the plate surface; and a sensor is arranged on a cubic aluminum block. The device can cover data of anear field and a relative far field: the near field data is an impact source for impact, and the far field data is better in regularity, so that comparison and analysis are facilitated; two test results are subjected to mutual corroboration at the same point, so that the consistency of the test results is judged; and a basic law of distance-based impact wave attenuation is obtained. The impact test platform for the wire type separation device and a test method are established for the first time; a method of a flat plate test piece is adopted, so that the test cost is reduced; more than 50 pieces of test data of more than 20 design states are accumulated; and the preferred scheme obtains verification of a full-size test and has the same trend.

Description

technical field [0001] The invention belongs to the technical field of projectile body structure separation systems, and in particular relates to an impact level evaluation test platform for a line separation device. Background technique [0002] As the earliest separation device used, the wire separation device has been widely used in the structure of the projectile body, and has been developed in depth with the improvement of modern aerospace technology requirements, especially in recent years, it is more used for large diameter, high The payload of the bearer is separated functionally. The impact generated by the separation device affects the instruments and equipment near the separation surface. Therefore, the impact index of the product needs to be assessed during the product design process. The measurement and evaluation of impact is a complex system engineering. At present, the impact of products is generally measured on the real shell structure. This method has the ...

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the invention is that the existing impact test platform is only suitable for the impact test of the point-type separation device, and there is no platform applicable to the impact test of the line-type separation device. A test method is provided that is reasonable and the comparison results can be compared. Shock level evaluation test platform for linear separators with the same letter, trend and full size

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