一种基于Dytran的小型无人机起落架载荷计算方法  

A Method of Landing Load Analysis for the Miniature Unmanned Air Vehicle Based on Dytran Software

作　　者：纪学[1] 卢文书[1] 高洪涛[1] 

机构地区：[1]沈阳飞机设计研究所,辽宁沈阳110035

出　　处：《飞机设计》2017年第1期21-23,27,共4页Aircraft Design

摘　　要：首先利用工程简化算法和数值仿真计算两种方法对某小型无人机的降落过程中起落架受载进行分析计算,获得了起落架载荷和变形量。通过计算结果对比分析,得出简化算法能快捷的获得起落架载荷,而数值仿真计算方法能直观的显示起落架变形时间历程同时通过迭代计算能获得相对更优结果结论。本文提出的基于Dytran的数值仿真迭代方法也可用于其他小型无人机起落架载荷计算分析。This paper uses simplified algorithm and numerical simulation calculation of two kinds of methods to obtain deformation and load of a small unmanned aircraft landing gear in the landing process. By analyzing the results of calculation, a conclusion can be obtained algorithm can quickly get landing gear load while numerical simulation calculation method for landing load can directly dis- play the gear deformation time course, at the same time, iterative calculation method can optimize the gear shape and different working condition of landing load calculation. The numerical simulation cal- culation iterative method based on Dytran software can also be used in other small unmanned aircraft landing gear load calculation and analysis.

关 键 词：起落架 单位载荷法 动力学分析 数值仿真 

分 类 号：V275[航空宇航科学与技术—飞行器设计]