Prediction Model of Impact Vibration Strength Under Explosion

• Published in: Shock and vibration Vol. 2025; no. 1
• Main Authors: Liang, Zhen-Gang, Chen, Qing-Hua, Tao, Yan-Guang, Lv, Jia-Ze
• Format: Journal Article
• Language: English
• Published: Cairo John Wiley & Sons, Inc 01.01.2025; Wiley
• Subjects: Attenuation; Bulkheads; Chambers; Damage assessment; Dimensional analysis; Electronic equipment; Electronic equipment and supplies; Explosions; Explosives; Impact analysis; Implosions; Laws, regulations and rules; Prediction models; Propagation; Regression analysis; Sensors; Simulation; Simulation methods; Vibration analysis; Vibration tests; World War II; United States > US
• ISSN: 1070-9622; 1875-9203
• DOI: 10.1155/vib/3840330

Aiming at the attenuation law of shock vibration acceleration of bulkhead structure under the action of internal explosion load, the model shock vibration test of internal explosion chamber was carried out to analyze the impact environment of different positions of bulkhead structure. The attenuation law of wall vibration intensity under internal explosion environment is studied. The simulation method verified by the experiment was used to simulate the implosion process of the cabin model. The implosion simulation calculation was carried out by setting different charge amounts. The observation points were arranged on the bulkhead, and the acceleration curves at the measurement points were extracted to record the peak acceleration. Based on the regression analysis of the simulation data, the prediction model of the peak vibration acceleration of the cabin bulkhead structure in the environment of internal explosion is established. It has important reference value for damage assessment of personnel and electronic equipment in internal explosion chamber and protection design of ship.