基于ANSYS的无人机发射过程瞬态分析

Uavs Launch Process Transient Analysis Based on ANSYS

为保证无人机能够顺利起飞,根据隐式动力学理论,对无人机在导轨上的滑动过程进行分析。通过对无人机模型的合理简化,利用有限元软件ANSYS建立仿真模型。通过MPC算法来定义各部件之间的连接,利用ANSYS的完全瞬态法求解模型。根据得出的结果,由质量节点的位移、速度、加速度图形,可知模型的正确性;由模型的应力云图可知在整个起飞过程中滑块有应力集中。

In order to ensure the uav for taking off,according to the implicit dynamics theory,the process of the uav sliding on the guide rail is analyzed. The finite element software ANSYS is used to establish and simulate its reasonably simplified model. The MPC algorithm is used to define the connection between the various components and ANSYS transient method is used to solve the model completely. According to the results of the quality of node displacement,speed and acceleration graphics,the model is reasonable.In the stress nephogram of the model,it shows the slider is characteristic of the stress concentration during lifting off.