| 摘要 |
FIELD: testing technology; estimation of untightness of full-scale compartment of flying vehicle provided with drainage devices. ^ SUBSTANCE: proposed method includes blowing the thermostatting medium into compartment for forming pressure differential between external and internal pressure under ground conditions which correspond to pressure differentials acting on compartment in flight. Untightness of compartment is estimated by measured flow rates, pressure differentials and temperature in compartment, after which decision is taken for retrofitting of compartment or change of number of drainage devices. ^ EFFECT: enhanced accuracy of estimation of untightness; enhanced reliability; low cost. ^ 3 dwg |
