汽车在现代社会中已经深入到各行各业，成为了人们生活中不可替代的重要组成部分，进而汽车的安全性问题也受到越来越广泛的关注，所以为了确保其安全性，汽车需要经受各种各样的冲击试验测试，冲击试验机就是其主要的试验工具。
In modern society, automobile has penetrated into all walks of life and become an irreplaceable important part of people's life. Furthermore, the safety problem of automobile has been paid more and more attention. Therefore, in order to ensure its safety, automobile needs to undergo a variety of impact test. Impact test machine is its main test tool.
近年来，国外发达国家对于气压弹射冲击试验机的相关研究已经非常成熟，而国内相关的研究和项目很少，所以研发该种类型的试验机具有十分重要的意义和非常广阔的前景。
In recent years, the research on the pneumatic ejection impact testing machine in developed countries has been very mature, but there are few related research and projects in China, so the research and development of this type of testing machine has a very important significance and a very broad prospect.
弹射冲击试验主要用于模拟人体局部(如头部)碰撞到车内部或外部结构时的过程，检验碰撞发生时人体所受到的影响。这种试验方法可单独对玻璃、方向盘、仪表板、座椅头枕等部件进行安全检验。
The ejection impact test is mainly used to simulate the process of local human body (such as head) colliding into the internal or external structure of the vehicle, and check the impact on human body when the collision occurs. This test method can independently inspect the safety of glass, steering wheel, instrument panel, seat headrest and other components.
实际的试验中，弹射装置带动球状或半球状的刚性模型作高速运动，使其高速撞击被测物而完成冲击过程。该试验方法具有结构简单，便于操作，试验周期短，成本低等优势。
In the actual test, the ejection device drives the spherical or hemispherical rigid model to move at high speed, so that it can impact the tested object at high speed and complete the impact process. The test method has the advantages of simple structure, easy operation, short test cycle and low cost.