摘要
动力学建模所需的气动导数一般均采用传统的方法,如流体力学(CFD)或者采取实际的模型进行风洞试验估算,有一定局限性。本文通过DATCOM软件对某大型飞翼无人机进行分析,更快更方便地得到了空气动力系数,再利用Matlab中的相关函数进行数据插值,结合无人机刚体运动模型建立一个以M文件为主体的六自由度仿真模型,并进行了模型开环仿真,仿真结果能一定程度揭示出无人机的实际飞行运动规律。
Classical Method such as wind tunnel testing and computational fluid dynamics（CFD） still play an important role in the process to obtain desired aerodynamic derivatives. But these methods have some limits. It is more convenient and faster to obtain desired aerodynamics coefficients via DATCOM for a large-scale Flying wing UAV Analysis in this thesis. Then use a correlation function to interpolate data to establish a simulation model of six-degree-of-freedom based on M file Combining with movement model of rigid body. In the end, it presents the simulation by nonlinear open-loop.The result of simulation reveal the true flight law of UAV in a certain extent.
出处
《飞机设计》
2010年第1期9-15,共7页
Aircraft Design
基金
航空基金05C52007
关键词
DATCOM
飞翼无人机
六自由度仿真模型
开环仿真
DATCOM
flying wing UAV
simulation model of six-degree-of-freedom
simulation ofopen-loop.
