摘要
建立的飞机地面运动数学模型是“可操纵的”,机体有 6个自由度。该模型只要给定操纵信号 ,就能求出前轮和飞机的运动及其相互作用。飞机地面运动模型采用无滑动轮胎模型 ,不再引入任何人为的运动学假设 ,不要事先给定前轮转角 ,不依赖于需要复杂测定的侧向力函数 ,考虑了轮胎的滚动特性。对飞机的地面运动一直沿用瞬时转动中心等价于质心轨迹的曲率中心的假设。研究表明 。
The model of aircraft ground motion is operational, where the airframe has six degrees of freedom. According to the pilot command, the paddle displacement is given, and the model can find the motion of both the airframe and nose-wheel and the interaction between them. The non-sliding model of tires is applied but no assumption of airframe motion is adopted. The turning angle of nose-wheel is not given in advance. The functions of tire force versus nose-wheel turning angle are no longer needed when the tire rolling coefficients are employed. The assumption that the center of simultaneous turning of the airframe is the same as the center of curvature of the mass center track is true only when the aircraft is in a steady state turning.
出处
《航空学报》
EI
CAS
CSCD
北大核心
2001年第2期163-167,共5页
Acta Aeronautica et Astronautica Sinica
