ABSTRACT

Skid-resistance performance of a runway greatly influences aircraft landing safety. A wet runway significantly increases the incidence rates of aircraft overrun. To study the influence of the skid-resistance performance of a runway on aircraft landing, a co-simulation method is proposed. First, a finite element (FE) model of the local tire-water film-runway simulation is established to obtain the combination coefficient-slip ratio curve of a tire on a wet runway. Second, a global model of an Airbus A320 virtual prototype (VP) is created. Then, on the basis of fuzzy control theory, a two-dimensional (2D) fuzzy controller of the aircraft AB is established. The friction coefficient-slip ratio curve of the tire on the wet runway obtained in the local simulation is introduced into the full-scale hydroplaning simulation model of the aircraft. Finally, the global-local multiscale simulation method is used to analyze the skid-resistance behaviour of the aircraft on three types of runways. It is found that the increase of water film thickness of the pavement and the increase of the grounding speed cause the attenuation of the friction coefficient of a runway, finally causing the reduction of the deceleration rate of the aircraft and the increase of the braking distance.

摘要

跑道的防滑性能极大地影响飞机着陆安全。湿跑道显着增加了飞机超限的发生率。为了研究跑道的防滑性能对飞机降落的影响，提出了一种协同仿真方法。首先，建立局部轮胎-水膜-跑道模拟的有限元（FE）模型，以获取湿跑道上轮胎的组合系数-滑移率曲线。其次，创建空客A320虚拟原型（VP）的全局模型。然后，基于模糊控制理论，建立了飞机AB的二维（2D）模糊控制器。通过局部模拟获得的轮胎在湿滑跑道上的摩擦系数-滑移率曲线被引入飞机的全尺寸滑水模拟模型中。最后，全球局部多尺度仿真方法用于分析飞机在三种类型的跑道上的防滑性能。已经发现，路面水膜厚度的增加和接地速度的增加导致跑道的摩擦系数的衰减，最终导致飞机的减速度的减小和制动距离的增加。