The dynamics analysis and simulation of civil aircraft open mechanism based on hamilton's principle

The boarding gate of an airliner is the most frequently used cabin door on an airplane. Its operability and motion characteristics directly relate to the experience of flight attendants and passengers. Focusing on a door open mechanism which includes hinge arm that has guiding role, the dynamic movement process is described by Hamilton principle, a motion model is established, and the simulation model is established in Simulink, then completing the simulation. The results verifies the theory of balance of doors open mechanism analysis. The motion and the simulation results of stress distribution show that the design of the door opening mechanism conforms to the expected design specifications.