Analysis and Improvement of Air Leakage in Inclined Strut of a Certain Type Nose Landing Gear
The inclined strut was one of the important components of a certain type of nose landing gear,and it was found that there was air leakage during the airtight test.In order to analyze the cause of the fault,from the fault location,mechanism analysis,component size inspection and fault recurrence,it could be seen that the surface defect of the sealing ring at the sealing place between the inflation valve and the matrix of the inclined strut caused the local seal failure at the cone of the inclined strut,which leaded to the local air leakage of the inclined strut.By improving the die parting surface of the seal ring from 45°to 180°,and controlling the surface roughness of the sealing part of the inclined strut matrix,it was ef-fectively solved that the problem of air leakage during the air tight test of the inclined strut.The analysis and improvement of the air leakage fault in the sealing place of the inclined strut cone had certain reference significance to the analysis of the air leakage fault in the sealing place of similar components
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