论文部分内容阅读
精确控制副翼偏转角度对提高轻型飞机的操纵性能具有重要意义,将改进的空间四连杆机构——RSSR应用于轻型飞机副翼操纵系统的传动末端,采用方向余弦矩阵法建立RSSR机构运动的数学模型,并推导出该机构的位移方程,在ADAMS软件中对该机构进行参数化建模,确定目标函数、约束函数和驱动函数;优化算法选用广义简约梯度算法,对敏感程度较高的设计变量进行优化设计。结果表明:RSSR机构中各点的相对位置对副翼偏转角度影响较大,副翼上下偏转角度的相对误差分别从初始的2.35%与5%降低为0.100 5%与0.103 3%,采用RSSR机构可有效提高对飞机副翼偏转角度的控制精度。研究成果最终应用于某五座复合材料轻型飞机样机中。
Precise control of the aileron deflection angle is of great significance to improve the handling performance of light aircraft. The improved space four-bar linkage mechanism --RSSR is applied to the end of the light aircraft aileron control system. The direction cosine matrix method is used to establish the motion of the RSSR mechanism Mathematical model, and deduced the displacement equation of the mechanism, the parameterized modeling of the mechanism in ADAMS software to determine the objective function, the constraint function and the drive function; optimization algorithm using generalized minimal gradient algorithm, the more sensitive design Variable optimization design. The results show that the relative position of each point in the RSSR mechanism greatly affects the ailerman deflection angle, and the relative errors of the ailerons deflection angle from the initial 2.35% and 5% to 0.100 5% and 0.103 3% respectively. The RSSR mechanism Which can effectively improve the control accuracy of the aircraft ailerons deflection angle. The research results eventually applied to a five-seat composite light aircraft prototype.