直滑轨式襟翼运动机构可靠性分析

Reliability Analysis of Straight Track Flap Movement Mechanism

在阐明直滑轨式襟翼运动机构工作原理及特点的基础上,建立了考虑杆长、输入角等随机特性的直滑轨式襟翼运动机构的可靠性分析模型,进而提出了直滑轨式襟翼可靠性分析方法。以某型飞机直滑轨式襟翼运动机构为例进行了可靠性分析,得到了此运动机构在不同输入角标准差以及杆长标准差下的可靠性分析结果。结果表明:直滑轨式襟翼运动机构可靠性对输入角标准差的变化高度敏感,而对各杆长标准差的变化相对不敏感。

After the working principle and working characters of the straight track flap movement mechanism being illustrated, a reliability analysis model was established, in which the randomness of rod length and angle is taken into consideration. Then a following reliability analysis method was proposed. Taking a certain type of straight track flap movement mechanism as an example, the reliability analysis results under different standard deviations of input angle and rod length are obtained. Such analysis results show that the reliability of straight track flap movement mechanism is highly sensitive to the standard deviation of input angle, but not sensitive to the standard deviation of each rod length. The analysis results could provide helpful reference for designing the straight track flap movement mechanism.