Study On Stability Of Carrier-based Aircraft Traction System Under Crosswind

As an important part of the aircraft carrier,before flight training or combat missions,the aircraft must complete the basic maneuvering process on deck.The carrier-based aircraft cannot change its position by itself under low-speed conditions,which requires the tractor to cooperate with it to complete the movement on the deck.When the carrier-based aircraft traction system is subjected to crosswind and even more complex sea conditions,it is prone to tail-flick,sideslip,folding and other unstable phenomena,which puts forward higher requirements for the driver ’s driving ability.Therefore,this paper takes the carrier-based aircraft traction system as the research object to explore its extreme driving ability under different sea conditions.Firstly,the motion state of the ship is described.The coordinate system of the ship,the coordinate system of the traction system and the coordinate system of the inertial system are determined by the right-handed Cartesian law,and the transformation relationship between them is described by the rotation matrix.Secondly,the kinematics analysis of carrier-based aircraft traction system is carried out.Finally,the tire model of the carrier-based aircraft traction system is established considering its slip and sideslip.The pneumatic six-component of carrier-based aircraft traction system including resistance,lift,lateral force,etc.is described.The external forces acting on the carrier-based aircraft traction system including traction,hinge point force,rolling resistance,etc.are analyzed.The dynamic model of carrier-based aircraft traction system is constructed.With the help of Fluent software in ANSYS Workbench platform,the fluid dynamics simulation of carrier-based aircraft traction system is carried out,the resistance of carrier-based aircraft traction system under crosswind is obtained,and the relationship between resistance value and sea state level is studied.Then,the steering model,tire model,wind load model and deck pavement model of the traction system are established in ADAMS/View,and the wind load model adopts the calculation results of fluid mechanics simulation.Finally,the stability of the carrier-based aircraft traction system is simulated and analyzed.Two evaluation stability indexes are studied,which are the limit speed of the traction system under different sea conditions and the rotation limit of the same speed under different sea conditions.