FMI Based Spacecraft Simulation Along Life Cycle Phases

Abstract

In notion of the recently encountered collisions and the crescent population of objects in the low Earth orbit, a significant motivation arose to develop effective and novel techniques to estimate the behavior and reactions of the spacecraft in a simulation environment. Early research efforts have used the Simulation Model Portability (SMP2) space-related standard in spacecraft simulation development. However, the simulators compatible with this standard only provide a C++ reference implementation. This thesis proposes utilization of the so-called Functional Mock-up Interface (FMI) standard in the spacecraft simulation development. It provides encapsulation of models and allows co-simulation at early design stages. Furthermore, this FMI simulator is leveraged to incorporate optimization algorithms within the FMU infrastructure. Benefits of such incorporation are exact determination of the required components before purchasing and effective emulation of a mission maneuver former to the spacecraft launching. This thesis provides detailed methodologies for developing a FMI spacecraft simulator and incorporation of the accumulation of Jacobian matrices optimization technique for sensitivity analysis of the simulation models.