Numerical Study on Dynamic Response and Damage of Unmanned Aerial Vehicle Impacting Engine Fan Blades of Civil Aircraft

In the framework of nonlinear dynamic software ABAQUS, the classic Lagrange method is used to establish a numerical model of unmanned aerial vehicle impacting the engine’s key components of the civil aircraft, including the simulation of unmanned aerial vehicle impacting engine fan blades of the civil aircraft. The impact dynamic response law and the failure damage changing process are obtained under different operating conditions. The following conclusions are submitted by simulating: In the situation of unmanned aerial vehicle impacting the engine fan blades, the rotation speed of blades and the impact position are the main factors causing the difference of deformation damage. The major damage on the key components of civil aircraft engines was mainly caused by hard-cell lithium batteries and small motors embedded in unmanned aerial vehicle.