Research on Actuation Capability for NLG Forward Door for One Type Civil Aircraft

This paper has performed an research for the design of the NLG forward door actuation system for one type civil aircraft. Theory analysis has been done to find key factors for the load of the actuation system. The effect of the aerodynamic load has been confirmed by flight tests, and the effect of the preload of the forward door has been confirmed by simulation. Several methods has been raised to improve the capability of the actuation system to close the NLG forward door. The research result in this paper will provide a guidance for the design of the forward door actuation system of civil aircraft.