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.
出处
《飞机设计》
2017年第1期21-23,27,共4页
Aircraft Design
关键词
起落架
单位载荷法
动力学分析
数值仿真
landing gear
unit-load method
dynamic analysis
simulation methodology
