Simulation study on anti-sliding performance of runway surface gathered water

Abstract

In order to study the anti-sliding performance of the aircraft on the runway especially for the surface gathered water condition, a finite element method is used to establish a finite element model considered the contact between aircraft tire and road surface. The vertical deformation of tire is analyzed and compared with empirical formula to verify the feasibility of the model. The adhesion coefficient is used as the anti-sliding evaluation index, and the influence of aircraft speed, tire load, tire pressure and water film thickness on the adhesion coefficient is analyzed by model. The specific conclusions are as follows: The adhesion coefficient between the tire and surface decreases with speed increases, increases with the tire load increases, and decreases with the tire pressure increases. The adhesion coefficient decreases with the increase of water film thickness, and when the water film thickness is thin, the adhesion coefficient decreases more obviously with the increase of velocity.