Test method for simulation experiment platform of mechanical structure crash resistance

Abstract

The invention discloses a test method of a mechanical structure collision resistance performance simulation experiment platform. The method comprises the following steps of setting a collision bench collision parameter, wherein the collision parameter includes a bench surface lifting height, a collision number and a collision frequency; then preparing a collision experiment; measuring a bench surface height and parallelism, and adjusting lifting systems of two sides of a bench surface till that the bench surface height reaches a preset height and a bench surface is in a horizontal state; beginning to simulate the collision experiment; starting a drag system of a collision bench so that an acquired collision waveform is in a corresponding tolerance band; and completing a set collision number so that the experiment is ended. In the invention, an influence factor of a collision process is considered from a plurality of aspects, the influence factor is corrected and finally a waveform required by the experiment is acquired. An accurate reference parameter is provided for the collision process of an actual object so that the object can be effectively prevented from being destroyed during the collision process.

Description

technical field [0001] The invention belongs to the technical field of a mechanical environment simulation experiment platform, and in particular relates to a control method of a mechanical structure collision resistance performance simulation experiment platform. Background technique [0002] Crash test bench is a crash test equipment controlled by computer. It is used to carry out collision tests on various complete machines and devices in order to assess the adaptability of performance and structural integrity of these industrial products, especially electrical and electronic products and military equipment, under the conditions of collision environment, so as to ensure that the products have high reliability. Quality; it is also an indispensable means for process testing and optimal design of new products. It mainly includes a control unit, a detection unit, an execution unit, a data acquisition unit and a mechanical unit. The mechanical unit mainly includes a table top...

AI Technical Summary

Problems solved by technology

It mainly includes a control unit, a detection unit, an execution unit, a data acquisition unit and a mechanical unit. The mechanical unit mainly includes a table top, a table body, a lifting mechanism and a buffer pad. At the same time, during the collision process, the collision parameters cannot be automatically corrected, so that the obtained collision waveform is not a standard attenuation waveform, and the waveform distortion is large, especially for the collision platform with a large table. There is a set of lifting mechanisms on both sides of the table, and it is required to ensure the synchronization of the mechanism and the uniformity of the rising and falling process of the table. Therefore, the control method of the present invention is proposed

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