Nonlinear Response Characteristic Analysis of a Quadrotor with Suspended Payload

Nonlinear dynamic characteristics in a quadrotor plays an import role in today’s quadrotor applications. Present work focuses on the nonlinear vibration characteristics of a quadrotor. A suspended payload is considered as a dynamic part of the entire system and the nonlinear vibrations of the suspended payload are attached to the quadrotor. Defined restricted path motion and various collection of waypoints are considered for the analysis. The payload is subjected to an external excitation in the form of wind drag formulated by the Dryden wind turbulence model. The results of the two swing angles representing the degrees of freedom of the payload are analysed for the various cases of waypoints and splines are reported.