GB/T 2423.56-2006 Environmental testing for electric and electronic products—Part 2:Test methods—Test Fh:Vibration, broad-band random(digital control)and guidance

Scope

This section provides two standard test methods (Method 1 and Method 2) to determine the ability of test samples to withstand specified broadband random vibration. It cannot be assumed that one test method is more rigorous than the other. The main difference is that Method 2 provides more information to quantify the applied test, thus having better reproducibility. This section also reveals the stress accumulation effect caused by random vibration and the decline of specific mechanical properties, as well as the use of this information and relevant specifications to evaluate the acceptability of test samples. Sometimes, this section is also used to demonstrate the mechanical environmental adaptability of samples and/or study their dynamic characteristics. This section is applicable to samples that may be subjected to random vibration during transportation or working environments, such as in aircraft, spacecraft, and land vehicles. It is mainly used for unpackaged samples and test samples whose packaging is part of the sample itself during transportation. This section is mainly applicable to electrical and electronic products, but it is not limited to this and can also be applied to products in other fields.

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