Discrete source distributed impact test device and method

Abstract

The invention belongs to the field of impact dynamics tests, and particularly relates to a discrete source distributed impact test device and method. The device comprises a gas tank, multiple gas guns, discrete sources, a to-be-tested piece and a multi-target velocimeter. The gas guns are connected with the gas tank through gas guide pipes, controllable air valves are arranged on the gas guns, and the controllable air valves are connected with the controller; the discrete sources are arranged in the gas guns; and the to-be-tested piece is located at the position matched with openings in the rear ends of the gas guns, and the to-be-tested piece is installed on a posture adjusting mechanism capable of achieving six-degree-of-freedom adjustment. The multi-target velocimeter is located between the gas guns and the to-be-tested piece. According to the invention, the impact test of multiple impact sources can be carried out at the same time, the multiple impact sources can be synchronously launched or asynchronously launched in time, and the impact points of multiple discrete sources can be adjusted in space, so that the spatial distribution of the impact of the discrete sources is realized, and the spatial attitude of an impacted test piece can be adjusted, so that flexible adjustment can be carried out according to the test purpose.

Description

technical field [0001] The application belongs to the field of impact dynamics test, in particular to a discrete source distributed impact test device and method. Background technique [0002] The important structural components of the aircraft, such as skin, windshield, radomes, etc., are often hit by birds, hail, etc., resulting in structural failure and damage, which seriously threatens the flight safety of the aircraft. Generally, the impact-sensitive surface of the aircraft needs to be verified by the ground simulation impact test. The air cannon is a commonly used ground simulation impact test device. Simulate the impact of foreign objects on important structural components of the aircraft. [0003] The existing ground simulation impact test method has a single impact source, and cannot simulate the continuous impact scene of birds in the air or multiple hailstones; in addition, the test pieces of the existing air cannon device are generally fixed, and different clips...

AI Technical Summary

Problems solved by technology

[0003] The existing ground simulation impact test method has a single impact source, and cannot simulate the continuous impact scene of birds in the air or multiple hailstones; in addition, the test pieces of the existing air cannon device are generally fixed, a

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