Dynamic Response of Civilian Aircraft Structures Under the Action of Directional Blasting Devices in Pressurized Environment

In order to ensure the aviation safety of civil aircraft, the dynamic response of civil aircraft structure under pressurized environment under the action of directional blasting device explosion load is studied, the design requirements for the connection between civil aircraft blast-resistant structure and aircraft structure are put forward, and the simulation and analysis scheme is established based on the commercial finite element software, to obtain the dynamic response of airframe structure under pressurized environment under the action of directional blasting device explosion load. Through the design of the simulated aircraft pressurized cabin structure, the dynamic response of the directional blasting device on the fuselage structure of the test verification, the test results show that the directional blasting device and the fuselage structure of the connection scheme is effective, and the fuselage structure is intact under the action of the explosive load. Based on the test results, this paper proposes a civil aircraft directional blasting device layout and connection requirements with the airframe structure, for the civil aircraft directional blasting device and airframe connection design to provide reference.