Simulation and Verification of the Drop Test of 3C Products

Drop test performance has become one of the most crucial evaluations for Computer, Communication, and Consumer (3C) products. Both simulation tool and practical platform for drop test must be established for detailed study. A patented drop test platform is designed for the purpose of impact angle repeatability and instantaneous drop image capture at impact instance. These parameters are two crucial computer-aid-engineering (CAE) inputs used for drop impact simulations. Post data processing procedures such as sampling rate, and signal filtering specifications was also studied and found to be important for the accurate interpretation of drop simulations as well. It was found from simulations that a small angle variation ( 5°) may result in up to 36% difference in predicted ± internal stress. Accurate identification on the impact angle, therefore, is recommended as an important parameter on internal component stress calculation. Good consistency between measured acceleration data and simulated results verifies the practicality of the developed data processing procedure and numerical methodology.