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采用CFD数值模拟的手段,模拟了飞机在不同对接速度下加油锥套的运动情况。空间离散采用了Osher格式,紊流模型采用了S-A一方程紊流模型,动网格采用了适合柔性变形的基于Delauney图的动网格技术,运用“刚杆-球铰”模型离散方法对软管锥套系统进行建模,建立了软管多体系统模型并得到其运动控制方程。计算结果表明,不同的对接速度对锥套的运动有较大的影响,低于3m/s时,锥套向上飘移并且伴有周期性摆动;当以3m/s速度进行对接时,加油锥套存在向上移动,飘移距离在0.6m左右,但周期性的振荡表现较小。本文的结果为该类飞机加油的对接速度提供参考。
The CFD numerical simulation method was used to simulate the movement of the refueling cone under different docking speeds. The Osher scheme is adopted for the spatial discretization, the SA turbulence model is adopted for the turbulence model, the Delaunay graph-based moving grid technique is adopted for the moving grid, and the “rigid rod-spherical hinge” model discretization method The hose taper system is modeled, a multi-body system model of the hose is established and its motion control equation is obtained. The calculation results show that different docking speed has a great influence on the movement of the taper sleeve. When the speed is lower than 3m / s, the taper sleeve moves upward and is accompanied by the periodic swinging. When the speed is 3m / s, There is upward movement, drift distance of about 0.6m, but the periodic oscillation performance is smaller. The result of this paper provides a reference for the docking speed of refueling of such aircraft.