Dynamic Response Research And Strength Calculation Of Aircraft Landing Gear

In traditional,designer often build aircraft landing or taxiing mathematical model to do research on aircraft landing gear dynamic response and structural strength by using linear or nonlinear equations.In recent years,with the rapid development of computer software technology,virtual prototyping and finite elemen technique are increasingly used in modern structural calculations.Combining ADAMS and ANSYS in research on aircraft landing gear dynamic response and strength calculation can not only provide a more accurate calculation result but also provide convenient for designer to observe the gear force and motion characteristics.Basing on the actual situation of a large airliner,it analyze the structural form of the aircraft landing gear then establish a pillar landing gear structure and buffer mathematical model.Basing on the aircraft landing movement,a aircraft trajectory equation is established.Got a aircraft landing trajectory in different pitch angle,then it analyzes the effect on the landing trajectory of the pitch angle.By using ADAMS software it establish a landing gear drop shock model,combined with trajectory calculations,it gets the motion characteristics and force conditions of aircraft landing gear with different pitch angle.Finally,by using ANSYS do strength calculations on the landing gear.Paper complete establish the aircraft landing gear trajectory equation,modeling mathematical model of the landing gear,virtual prototype simulation of the drop test,final calculat the structural strength of landing gear.Computing fit the actual conditions,meet the design requirements and has a reference significance to the landing gear design.