Research on anti-explosion properties of galley cart-fabric bag combination device
In order to enhance the security technology level of civil aircraft cabins,a potential solution for emergency handling of suspected explosives within the cabin is proposed by combining aviation catering trolleys with fabric bags to form a civil aircraft cabin explosion-tolerant device.Internal explosion tests were conducted on the aviation catering trolleys and the aviation catering trolley-fabric bag combined device,followed by finite element simulations.Comparative analyses were conducted on the response processes and failure modes under internal explosion scenarios for both configurations.The accuracy of the finite element models was validated through experiments,and the effects of internal fillings and fabric bag thickness on the structural blast resistance were analyzed.The research findings indicate that under explosive shock loads,the fabric bag significantly enhances the blast resistance of the aviation catering trolley,compensating for its flammability weakness.When adding seat cushions as internal fillings,the energy absorption of the seat cushions accounts for 74％of the total absorption,reducing the deformation and failure scale of the aviation catering trolley,which play a critical role in dissipating explosive energy.The aviation catering trolley-fabric bag combined device is detachable,and the influence of fabric bag thickness on the energy absorption capacity of different components under the same explosive dosage is not significant.The combined device can serve as an explosion-tolerant device for civil aircraft cabins,offering a solution for handling suspected explosives within the cabin in emergency situations.
万方数据
维普
