Dynamic Modelling and Analysis of a Quadrotor Based on Selected Physical Parameters

Over the past decade, control techniques have been widely implemented on quadrotors to achieve the desired positions within the coordinate system. However, ensuring that the dynamics are correct and that similar results to a physical model can be obtained has been a question of interest. In this paper, the quadrotor dynamics are thoroughly analysed in simulation without using any controllers. Specifically, suitable actuators and propellers have been selected to generate ideal thrusts that will enforce the unmanned aerial vehicle (UAV) to lift. By using kinematics approach, one can analyse the expected motion of the UAV after a certain thrust is applied on all motors. Hence, the dynamics of the proposed quadrotor are recognised and verified through numerical simulations, leading to presenting the motions of the physical model. The results attained have illustrated promising results in which a comparative study between experimental and theoretical methods have presented little to no errors