Research on Simulation of Expansion and Locking Process of Aircraft Folding Rudder
The expansion and locking process of aircraft folding rudder is a dynamic process of multi-load synthesis.The dynamic process is studied by simulation.The dynamic simulation model is established,considering aerodynamic load and friction action in the whole dynamic process.The influence of different aerodynamic load on dynamic process is analyzed by dynamically simulating the condition of obstruction,no-load and promoting aerodynamic load.By comparing the result of no-load expansion test with the simulation result of no-load condition,the accuracy of the dynamic simulation model is verified.Based on this dynamic simulation model,the friction work under different aerodynamic load condition is identified by using angular acceleration method and angular velocity method respectively from load and energy dimensions.The result of the study shows that the friction torque is affected by aerodynamic load.The friction work increases with the increase of aerodynamic promotion.The angular acceleration method and angular velocity method are both reasonable to identify the friction work.The research provides theoretical reference for engineering design and analysis of aircraft folding rudder.
aircraft folding rudderthe process of expansion and lockingdynamic simulationaerodynamic loadidentification of friction work
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