Создание твердотопливных зарядов для ракетных двигателей твердого топлива с помощью аддитивных технологий

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Создание твердотопливных зарядов для ракетных двигателей твердого топлива…
Инженерный журнал: наука и инновации # 6·2017 9
Manufacturing of propellant grains for solid
rocket motors using additive technology
© S.S. Kurdov, V.E. Zavolokin, M.A. Komkov
Bauman Moscow State Technical University, Moscow, 105005, Russia
The paper considers the development of a propellant grain with the maximum cross-
section curvature for SRM, which would provide maximum SRM thrust. However, mod-
ern propellant grain production technologies cannot enable the production of complex
cross-section propellant grains due to existing geometrical and structural parameters of
the fuel. It sidelines modern space engineering. Additive technologies make it possible to
produce complex curve shaped items. The development of 3D-printer capable of printing
the propellant grain for SRM would allow producing SRM with different power charac-
teristics depending on customer’s preferable tasks. In our work we introduce a new tech-
nology for producing the propellant grain for SRM. Moreover, we describe some funda-
mental principles and potential problems of producing 3D-printer for printing the pro-
pellant grain for SRM. We also suggest the ways to solve the problems and give the
printer conceptual image and its hardware flowchart. In order to carry out tests on fine-
tuning technologies of printing the relevant propellant grain, we analyze a specific model
of the propellant grain for SRM. Finally, we propose other fields of application for the
high-energy propellant grain technology.
Keywords: solid rocket motor, additive technology, 3D-printer, rocket-space engineering,
rocket-space technology, mixed fuel
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