Pollution resistance test method and test system for airplane integrated brake module

• Main Authors: MENG CHAO, LIU MAOCHUN, QIANG GANG, MA JIMING, HE XUEGONG, WANG KAILUO
• Format: Patent
• Language: Chinese; English
• Published: 03.07.2020
• Subjects: BLASTING; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR; FLUID-PRESSURE ACTUATORS; FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS; HEATING; HYDRAULICS OR PNEUMATICS IN GENERAL; LIGHTING; MECHANICAL ENGINEERING; SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; WEAPONS

The invention discloses a pollution resistance test method and test system for an airplane integrated brake module, and belongs to the technical field of reliability engineering. The test method comprises the steps of system preparation, pollutant selection, system inspection and test starting, wherein the pollution level is gradually increased from the NAS6 level to the NAS9 level. The test system involves a driving motor, a thermometer, an oil tank, an outlet pressure gauge, a hydraulic pump, a sampling port ball valve, an outlet ball valve, a safety valve, a heat exchanger, an unloading valve, a flowmeter, a one-way valve, an oil filter, an A port pressure gauge, a B port pressure gauge, an oil filter differential pressure gauge, an injection port ball valve, a pollutant injection cavity, a first throttling bypass valve, a second throttling bypass valve, and a bypass valve. By adopting the method and the system, current offset and performance parameters of a servo valve of the integrated brake module under