Selecting design parameters for a BOT small upper stage pneumohydraulic system based on the 1D simulation
Authors: Georgiev A.F., Trudonoshin V.A., Kurdzhiev Yu.V., Verzilin S.S., Nikulin D.S.
Published in issue: #11(155)/2024
DOI: 10.18698/2308-6033-2024-11-2400
Category: Aviation and Rocket-Space Engineering | Chapter: Design, construction and production of aircraft
The paper presents results of solving the problem of selecting architecture and evaluation of the pneumatic hydraulic system design parameters in developing the BOT small upper stage provided by requirements imposed on the spacecraft feasibility. The architecture selection task is solved by using a complex mathematical model of a small upper stage that reflects interaction of all the small upper stage systems, including the external conditions. The pneumatic hydraulic system operation parameters and the requirement to use the thermostat system are selected using the detailed system model. All models are developed in the domestic 1D-simulation software package, i.e. dynamic system simulation. As a result, the minimum required volumes for fuel component tanks, pneumatic hydraulic system operating modes are determined, the need to use the tank thermostat system is shown, the energy required to maintain the fuel components temperature is assessed, and the rational operating mode for the cruise engines is identified.
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