積雪滑走路における飛行機着陸時のタイヤ摩擦の評価

抄録

The accumulation of snow on a runway is a problem for operation of airplane. Therefore, it is necessary to estimate the friction coefficient between a tire and a snowy runway for airplane landing. This study investigates the state of snow between the tire and the stainless steel plate and estimate the influence of the snow on friction coefficient. The investigation uses electrical conductivity to observe degree of separation between the tire and the stainless steel plate. The frictional force and normal load were measured using a 6-axis dynamic sensation sensor in order to calculate the friction coefficient. This results show that the microscopic separation due to interposition of snow can be observed. In addition, It was confirmed that the higher the density and the thickness of snow (the higher degree of separation), the lower the coefficient of friction, and the lower the density and the thickness, the higher the friction coefficient. Hence, the friction mode is broadly divided into two modes, high friction mode and low friction mode.