GAS DYNAMIC AEROSPACE CHAMBER Russian patent published in 2018 - IPC G01M9/00 

FIELD: physics.

SUBSTANCE: proposal relates to the field of experimental aerogasdynamics and can be used to determine gas dynamic loads on models of aircraft with running engines during simulation and experimental research of jet interaction in processes of separation of high-altitude stages of carrier rockets, separation of spacecraft from upper-stage rockets, approach, coupling and decoupling of spacecraft on orbit, letdown of spacecrafts on surface of planets with a low-density atmosphere and starting from them. In gas-dynamic aerospace chamber containing a vacuum chamber, vacuum-pumping system, gas supply, control and measurement, force-measuring device connected to measuring system, active model of aircraft with a nozzle cluster connected to pipeline of gas supply system, passive model and coordinate spacer installed in working area of vacuum chamber, coordinate spacer is equipped with installed on its output and connected to control systems and measurements by a high-speed servo-device of linear motion with integrated sensor of moving of its rod, on which a passive model is fixed, and active model of aircraft is equipped with a thin-walled shell, made in form of its afterbody, separated by a gap from the nozzle unit and fixed on a force-measuring device, body of which is made in form of coaxial rings connected symmetrically by measuring elements arranged around their axis, said body includes with the gap nozzle unit and pipeline and is installed coaxially to the nozzle unit.

EFFECT: providing the possibility of short-term experiment of measuring force effect on active model of aircraft jets of its own propulsion system, reflected from the passive model or from the landing surface (start), simulation of relative velocity of active and passive models of aircraft and obtaining experimental data for different distances between the active and passive models.

1 cl, 2 dwg