TRACTION DEVICE FOR LOW-THRUST LIQUID-PROPELLANT ROCKET ENGINES IN PULSED OPERATION MODES

摘要

FIELD: test equipment.;SUBSTANCE: invention relates to test benches for low-thrust liquid-propellant rocket engines (LTLPRE). Traction device consists of housing made in form of circular beam, resilient elements representing radially oriented lobes of rectangular section, connecting the device housing and the process flange, on which the tested engine is attached, and their number, length and profile parameters provide the required natural frequency of the structure, which is not less than ten times higher than the frequency of the measured thrust pulses, in addition, the device employs high-precision laser displacement sensors which, during operation of the engine, can be installed either in a pressure chamber in a sealed housing or outside it.;EFFECT: invention provides higher accuracy of pulsed thrust measurements.;4 cl, 2 dwg