The procedure for conducting a vibration test is similar to that of other environmental tests. A complex or critical product’s vibration test can be divided into three stages:
- Pre-test Preparation Stage (Software and Hardware)
- Test Stage (During the Test)
- Post-test Final Stage
1) Pre-test Preparation Stage
Before conducting the test, thorough preparation is necessary in both software and hardware aspects. Adequate preparation ensures confidence in conducting the test. A well-executed preparation stage leads to a smoother test process, making it easier to identify and address any issues that arise. The preparation work includes:
(1) Accepting and understanding the test assignment and the product being tested
This involves gathering information about the product being tested, such as its name, model, serial number, composition, function, accessories, and any past history of vibration environment simulation tests.
(2) Familiarizing oneself with the product’s characteristics
This includes gaining knowledge about the product’s appearance, structure, sensitivity to vibration, dynamic characteristics, especially the first-order resonant frequency data, the most intense (or sensitive) parts of its vibration response, and the maximum vibration response acceleration limit.
(3) Understanding the test standard requirements (specifications, methods)
This encompasses knowledge about the type of vibration test to be conducted (such as sine vibration, endurance vibration, random vibration, or mixed-type vibration), the frequency range, magnitude and tolerance of vibration amplitude, vibration time, and vibration direction.
(4) Selecting vibration test equipment and auxiliary equipment
This involves estimating the maximum force required for the vibration table based on the test conditions and consulting technical specifications and calibration results (including calibration conclusion and validity period) of available vibration test equipment.
