Abstract:
In order to reduce the risk and the cost while improve the efficiency of the impact tests, a final peak sawtooth waveform library is built for the drop-type shock test bed. Firstly, the model of the terminal-peak sawtooth impact response is established and analyzed numerically. Then, a variety of lead cones are adopted for the final peak sawtooth impact tests to collect the test spectrum data. Finally, the impact response model is modified with the test data. The relation of the peak acceleration and the pulse width with the cone angle and the drop height are obtained, and the final peak sawtooth shock waveform library is constructed. The results are validated in the application on the product test and improved efficiency is shown.