Фундаментальные соотношения как основа математической модели объединенной двигательной установки МКС

Фундаментальные соотношения как основа математической модели…

Инженерный журнал: наука и инновации

# 7·2016 9

Fundamental relationship as the basis

of ISS integrated propulsion system mathematical model

S.P. Korolev Rocket and Space Public Corporation Energia,

Korolev, Moscow region, 141070, Russia

The integrated propulsion system (IPS) of the International Space Station (ISS) as

a pneumohydraulic system is the facility containing a large number of elements. Malfunc-

tion in the IPS operation may be critical for the ISS functioning. So, solving the modeling

task and investigating the phenomenon of fluid and gas distribution between the capaci-

ties during the IPS operation is the essential task. To solve this problem, we developed

a mathematical model of the system. According to the proposed relationships, we carried

out numerical calculations for the model system containing three tanks. The initial boost

gas pressure and liquid volumes in all tanks were given. As a model fluid we selected

water, as a model gas we selected molecular nitrogen. The purpose of the calculation

was testing the model relationships. The findings of the research show the adequacy and

consistency of the model. The process directions are in accordance with the conceptions

about the state change patterns in the described system. The relationships could be used

in developing an IPS pneumohydraulic mathematical model, which makes it possible to

assess and analyze the system processes while operating the IPS.

Keywords

: integrated propulsion system, pneumohydraulic system, modeling of fluid re-

distribution, mathematical model, analysis of system operation.

REFERENCES

[1] Gusev A.A.

Gidravlika.

Teoriya i praktika

[Hydraulics. Theory and practice].

Moscow, Yurait Publ., 2015, 285 p.

[2] Kirillin V.A., Sychev V.V., Sheindlin A.E.

Tekhnicheskaya termodinamika

[En-

gineering Thermodynamics]. Moscow, Energoatomizdat Publ., 1983, 416 p.

Sysoev D.V.

(b. 1974) graduated from Moscow Aviation Institute in 1998. Cand. Sci.

(Eng.), Senior Research Scientist of the department of analysis of operating and main-

taining pneumohydraulic, energetic, electrical and mechanical systems of spacecraft and

launch vehicles,

S.P. Korolev Rocket and Space Public Corporation Energia. Author of

a number of papers in the field of electric and rocket engine research and spacecraft con-

trol. e-mail: