飞机起落架收放系统运动模拟  

Dynamic simulation on down landing gear undercarriage system of aircraft

作　　者：盛选禹[1] 王联奎[2] 

机构地区：[1]清华大学核能与新能源技术研究院,北京100084 [2]菏泽学院机电工程系,山东菏泽274100

出　　处：《计算机工程与设计》2009年第18期4245-4247,4250,共4页Computer Engineering and Design

摘　　要：使用三维设计软件CATIA模拟了起落架收放系统的运动规律,消除了各零件之间的干涉现象。用软件计算了关键部位的速度和加速度随时间曲线和机轮上3点的运动轨迹,最后计算了各运动件的扫过体积。计算结果表明,收起和放下的过程并不完全对称,机轮的最大速度值为0.019m/s,缓冲支柱下表面的最大速度为0.031m/s,机轮的最大加速度值为11m/s2,缓冲支柱下表面的最大速度为14m/s2,收起过程的最大速度更大。在系统所有零件中,机轮扫过体积最大。On dynamic simulation workbench of the software CATIA, the dynamic law is simulated and interference phenomenon is avoided. The speed and acceleration verse time curves of key parts, the traces of three points on aircraft wheel are calculated. Finally, the swept volumes of dynamic parts are measured. It is found that lay down and retraction operation is not exactly syrmnetry, the maximum speed of aircraft wheel is 0.019m/s, the maximum acceleration aircraft wheel is 11m/s^2, the maximum acceleration at bottom of buffer struts is 14m/s^2, the maximum acceleration for retraction operation is higher. The swept volume of aircraft wheel is the biggest among simulated parts.

关 键 词：起落架 收放系统 运动模拟 飞机 三维设计 

分 类 号：TP39[自动化与计算机技术—计算机应用技术] V216.7[自动化与计算机技术—计算机科学与技术]