This article established a finite element model of aircraft single-wheel main landing gear for the landing impact dy-namic and conducted landing impact dynamic simulation and safety analysis.Firstly,by simplifying the fuselage,landing gear,tire,and pavement structure,a three-dimensional model of the aircraft single-wheel main landing gear was constructed,and Hypermesh was used to complete the mesh division of the model.Secondly,the Ogden model was used to describe the stress-strain relationship of tire rubber,and a finite element model of the tire was estab-lished to verify that the simulation results of tire deformation were basically consistent with the results calculated by empirical formulae.Finally,the implicit dynamic algorithm was used to study the load-bearing capacity and defor-mation of the tire under different landing speeds,and the safety of tire landing impact was analyzed in combination with airworthiness standards.The safety threshold of aircraft landing speed was obtained,providing a new research method for safety assessment of aircraft tire landing.
aircraft tirelanding impact dynamicsafety analysisfinite element model
NETL
NSTL
维普
万方数据
