Can not complete the drop test of smaller products and the problem of low accuracy. By adding expansion devices and expansion platforms to the existing drop brackets, it can meet the current task requirements for drop tests of smaller products and make up for the lack of current equipment functions. Improve the test accuracy and equipment capacity to meet the requirements of stable and reliable equipment. This set of drop tester can meet the national military standards and the national standard test technical indicators.

In this research field, the third-generation swing-arm drop test machine has been developed abroad, which can generate a variety of force pulse waveforms on a buffer, supplemented by highly automated control and data acquisition and analysis equipment.

The principle of the swing-arm drop test machine is to quickly rotate the bracket to release the sample and make it fall freely; the free-fall test machine is to make the bracket produce a motion greater than the free-fall acceleration to achieve the product free fall or by hanging The release of the hook achieves free fall of the product.

The testing machine consists of an impact plate, a lifting mechanism, a control box, a falling actuator and a test fixture fixing fixture. The swing-arm drop tester is more complex than a free-fall drop tester, and can accurately raise the product height without interference at the moment of impact. It can generate a variety of force pulse waveforms on a buffer and can achieve data collection and analysis.