test project

 mechanical shock test

       reference standard

       GB/T 2423.5-1995; IEC 60068-2-27: 2008
       EN 60068-2-27: 2009

       capabilities

 Half sine wave; impact acceleration range: 150~15000m/s2
 Pulse duration: 0.5~18ms;
 Worktop size: 500× 600mm

The purpose of the test is to determine whether various properties fail when the product is subjected to a series of shocks at normal and extreme temperatures. The technical indicators of the impact test include: peak acceleration, pulse duration, speed change (half sine wave, back peak sawtooth wave, trapezoidal wave) and waveform selection. There are no special requirements for the number of impacts, except for 3 impacts on each face, a total of 18 impacts. Many products will be impacted during use, loading and unloading, and transportation. The magnitude of shocks varies widely and are complex in nature. Therefore, impact and collision reliability testing is suitable for determining mechanical weaknesses and assessing the integrity of product structure. Mechanical impact test also known as mechanical shock.

The technical indicators of the collision test include: peak acceleration, pulse duration, speed change (half sine wave), and the number of collisions in each direction.

Note that the directions of impact and collision should be 6 faces, not the X, Y, and Z directions.

In environmental testing, vibration, impact and collision have something in common: these three tests can be used as an effective means to test the institutional strength of the product itself.

mechanical shock test

However, the vibration test emphasizes continuity and fatigue. For example, the transportation process of products or the operation of some engine components is a long-term process.

Impact tests are instantaneous and destructive. In theory, drop tests can also be regarded as a type of impact. Generally, impact testing machines fix objects on a platform, then raise the platform, and use gravity acceleration to impact. The shock wave shapes are half-sine wave, trapezoidal wave, and triangular wave.

Crash testing can be seen as a repetitive accumulation of shocks. However, collision tests generally use the kinetic energy of objects to test. There are flat and inclined collision tests.