Monopropellant Propulsion System Design using Multidisciplinary Design Optimization, Sequential Design Method, and Comparing Results

The hydrazine propulsion system is one of the most widely used monopropellant propulsion systems. This low-cost and low mass system is used for the attitude control of satellites due to its high specificity and rapid response.For this purpose, in the present study, an optimal design of a hydrazine monopropellant propulsion system with the aim of minimization of total mass and maximization of total impulse in the framework of multidisciplinary design optimization and sequential design method is considered. In addition, the principles of multidisciplinary and sequential design are described in this paper. It has been tried to examine the impact of different elements on design goals and compare the optimal value obtained in each of the design structures from different aspects. It should be noted that the design process is accomplished in two ways, i.e. single-objective and multi-objective, and the optimal multidisciplinary design method is compared with the sequential design method for the hydrazine monopropellant propulsion system.