Research on Undercarriage Model Based on Six-DOF Platform

This paper analyses the force of the landing gear during the process of taking off and landing of the aircraft on six-DOF platform, and simulates the running of the system. Most studies of the landing gear models are based on the steady ground. In this paper, the model supports for anomaly. Applying dynamics basic theory and considering the impact of various parameters as much as possible, it establishes a mathematical model of the landing gear to adapt to the landing process of the aircraft. Considering the character of the six-DOF platform, the model is acquired through the force analysis of the undercarriage during aircraft lands. Combined with the actual physics parameters of the undercarriage, the composition of forces and the resultant moment of the main undercarriage are acquired. Simulate some aircraft systems in VC++. The result shows that the model could simulate the changes of the composition of forces and resultant moment of the main undercarriage whether the aircraft takes off or lands. It can fit the real process well. It makes good sense for treating the carrier-borne fighters to land on the aircraft carrier safely.