Scientific journal
Scientific Review. Technical science
ISSN 2500-0799
ПИ №ФС77-57440

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MODELLING OF ACTIVITY OF THE PROPULSION SYSTEM OF THE SPACE VEHICLE AT GROUND TESTS

Sinitskiy D.E. 1 Murigin A.V. 1
1 The Joint-stock Company Academician M.F. Reshetnev «Information Satellite Systems» 52
At carrying out of ground tests not always it is possible to use real devices, such as a propulsion system (DU) the space vehicle (space vehicle). Use real DU is inexpedient and leads to large material inputs. For the solution of these problems in Open Society «Information satellite systems of a name M.F. Reshetneva» is developed and made simulator DU executed in the form of relay keys. The closed condition of a key corresponds actuated DU, opened - switched off. The given way of imitation is rough as laws of increase and thrust decay at actuation and cutoff DU are not considered. For elimination of the lacks set forth above by authors of activity it is offered to modernise simulator DU, on engaging means in a control loop of the program of calculation of thrust DU. At the heart of program activity the experimental data of thrust variation DU received at firing tests real DU space vehicle are put. Working out of a complex of imitation DU allowed to simulate activity DU, taking into account intervals of increase and decay of thrust DU in times of engagement and switching-off of valves of a propulsion system that supplied more exact imitation of motion of space vehicle, activity of a complex of semifull-scale modelling at ground tests an attitude control system and space vehicle stabilisation and consequently improved quality of tests of space vehicle.