Puncture test device and method

Abstract

The invention discloses a puncture test device and a puncture test method. The device comprises a rack fixedly mounted on one side of a pit, and a winding machine; a sandpit used for placing an experimental device is formed in the pit; a lifting device is arranged on the sandpit; the lifting device penetrates through a guide wheel set installed at the top end of the rack through a steel wire andis connected with the winding machine; a breakable puncture mechanism is installed at the end of the lifting device, and the puncture mechanism is located over the experimental device; a detection device for detecting the lifting distance of the puncture mechanism is arranged on the lifting device; the device for simulating aircraft crash to receive puncture impact is arranged; after the experimental device is arranged in the sandpit and the pit, the lifting device with the preset height is controlled to lift the puncture mechanism to carry out free falling motion; a puncture simulation experiment is conducted on the experimental device; and therefore the puncture experiment can be safely and reliably conducted in an experiment laboratory, and data are real and effective.

Description

technical field [0001] The invention relates to the technical field of puncture tests, in particular to a puncture test device and a method thereof. Background technique [0002] The cockpit audio recorder is an important component in the aircraft. It can help us analyze accidents during the flight of the aircraft, analyze faults, and find out the reasons. In order to withstand the violent impact and high-temperature flames when the plane crashed, the recorder shell needs to have very thick steel plates and many layers of heat-insulating and impact-resistant protective materials. Penetration, static extrusion, high temperature fire, medium temperature fire and deep sea pressure and seawater immersion tests. Among them, the penetration resistance test is carried out with a puncture tester. In the past, experiments on aircraft recorders (commonly known as "black boxes") were carried out on airplanes. The prepared "black boxes" were dropped from high-altitude flying airplanes...

AI Technical Summary

Problems solved by technology

In the past, experiments on aircraft recorders (commonly known as "black boxes") were carried out on airplanes. The prepared "black boxes" were dropped from high-altitude flying airplanes, and then the fallen "black boxes" were found to detect whether the internal data were Intact, this experimental method is time-consuming, laborious and extremely costly, and there is a big gap between the final experimental simulation results and the real aircraft crash results; in addition, the existing technology cannot truly simulate the real state, and the previous aircraft recorder is in the test In terms of its reliability, it needs to be dropped from the plane, but this method only tests its impact resistance, not enough to test its puncture resistance, and the method of dropping the plane is laborious and costly

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