Abstract: The electrical vibration (sine) test of the product mainly examines whether the resonance of the test product caused by transportation or mechanical movement can withstand various environmental vibrations. Therefore, the test samples for vibration (sine) test capability verification should have sufficient strength and rigidity, and the preparation of the test samples should refer to the design methods and requirements of mechanical parts and components. Firstly, the motion parameters and the shape and structure of the test sample are determined according to the test standard of vibration test. Then, the resonance frequency value of the test sample is analyzed by modeling. If it is within the design range, the test sample structure is optimized and perfected in the design stage, which saves the preparation time and cost of the test sample. Finally, the sample preparation, processing and test verification are carried out.

Key words: Modal analysis, Capability verification sample preparation, Vibration (sine) test