Modelling and simulation of RKX200 rocket flight dynamics

In this paper, modelling and simulation of RKX200 rocket flight dynamics are presented. The dynamics model is constructed by first-principle method based on forces and moments acting the rocket rigid body. In the development of the model, the aerodynamics coefficients are determined by using missile DATCOM software. A six Degree of Freedom (DoF) nonlinear model, as well as linear decoupled longitudinal and lateral-directional models are constructed for representing the flight dynamics of the rocket. The resulting models are numerically modelled and simulated using Simulink™ while its motion visualization is constructed using FlightGear™. Further, the dynamics model and the visualization application then are integrated and tested in Hardware In The Loop Simulation (HILS) environment.