学术论文

      飞机地面运动的静摩擦力模型

      A Static Friction Model of Aircraft Motion on Ground

      摘要:
      针对飞机的地面运动,尤其是多轮多支柱飞机的地面运动问题,提出了一种静摩擦力建模方法:将摩擦力定义为轮子弹性变形量的函数,而这种弹性变形量及其变形速度是可以计算的。这是一种静摩擦力的动力学模型。使用这种模型,能够求得飞机上每个轮子的各向摩擦力分量,将其计入飞机的动力学方程,就能够实现飞机地面运动的仿真,并且该模型不存在静不定问题。该模型已经在模拟器中得到初步验证。结果表明,仿真结果与理论计算结果高度吻合。该方法可以应用于飞机地面运动仿真。
      Abstract:
      To study aircraft motion on ground,especially for an aircraft with multi struts and multi wheels,supplied a model of static friction which defined a friction force as a function of the elastic deformation of a wheel. The elastic deformation and its rate were computable. Then the model is a kind of dynamics models. Using the model, all components of friction force on every wheel can be calculated. By reckoning all friction forces into the motion equations,the simulation on ground could be achieved. The issue of static indeterminacy does not exist in the model. The model has been verified partly in a simulator. The simulating result was coincident with the analytical result. The model can be applied in simulating of aircraft motion on ground.
      作者: 甘欣
      Author: GAN Xin
      作者单位: 中航工业第一飞机设计研究院 西安 710089
      刊 名: 航空科学技术
      年,卷(期): 2016, 27(6)
      分类号: V216.7
      机标分类号: V22 TH1
      在线出版日期: 2016年7月14日