Seizure Reliability Analysis of the Interior Weapon Cabin´s Door

The aircraft have employ interior weapon cabin´s door(ICWD) as a new part as the technology get advanced. ICWD usually adopt some multi-pivot movement mechanism. These mechanisms mostly use transition linkup, it only have linear displacement but no angular displacement. Thereby we re-deduced the security boundary equation and got a optimal solution of the support layout. A simple simulation model was made through analyzing the load of the IWCD. When the multi-pivot movement mechanism´s pivots have different displacement, we carry on numerical simulation to get the different start moving time. The simulation results demonstrate that the multi-pivot displacement is the main factor of ICWD´s seizure.