| 摘要 |
Disclosed are an impact amplification device for doubling an impulse applied to a test object using elastic restoring phenomena resulted from the shape characteristics of an impact plate, and a drop type impact tester. The present invention relates to an impact amplification device for a super high impact test of projectile parts, wherein impact plates are divided into a first plate and a second plate respectively arranged on an upper and lower end connected to each other by a connection rod (30). Immediately after the first impact plate (10) on the lower end collides with a shock support block, the first impact plate collides again with the second impact plate (20). Therefore, the impact repulsive energy of the first impact plate can additionally be absorbed by the second impact plate. In this process, in order to maximize the impact repulsive energy, the sectional area, the thickness and the volume of each of the plates are adjusted. In particular, the first impact plate can have a diffusion part structure on the bottom surface thereof. According to the present invention, an impact test wherein the super impact situation such as a cannonball firing shock is required can easily and safely be carried out on a reduced scale of a laboratory unit, thereby exhibiting excellent effects of reducing the period of developing the precise parts for the projectile as well as saving costs for development. |
