Application Research of Similarity Theory in Impact Test

In order to verify the feasibility of the similarity theory in the impact test of large-scale equipment, the key response parameters of the proportional similarity model under the specified impact load are obtained by means of the simulation calculation and analysis of the proportional similarity model and the impact test. The results show that when the impact test is carried out with parameters such as the main pulse peak acceleration and pulse width formulated according to the similarity theory, the strain test results of the same position of each model conform to the similarity theory law. This study verifies the correctness and feasibility of the similarity theory in the impact test, and can be used in the subsequent structural impact test of large equipment.