Journal of Civil Aviation University of China ›› 2025, Vol. 43 ›› Issue (1): 67-74.

• Aviation maintenance • Previous Articles     Next Articles

Research on the performance monitoring and replacement standard for damaged
hydraulic hose of civil aircraft

JIA Baohui a , MA Yuwei b , WANG Yuxina , YAO Fei b , XIAO Haijianc
  

  1. a. College of Transportation Science and Engineering; b. College of Aeronautical Engineering; c. College of Safety Science and
    Engineering, CAUC, Tianjin 300300, China 
  • Received:2023-02-27 Revised:2023-05-23 Online:2025-04-09 Published:2025-04-09

Abstract:

Using the approach of theoretical model establishment, experimental verification and simulation analysis, the mechanical performance change rule and failure situation of the hydraulic hose of civil aircraft when containing wear
defects are analyzed in this paper. The damage status of the hose that needs to be key monitored and the wear defect
depth recommend for replacement are obtained. Based on the flow-solid coupling method, a finite element simulation analysis of composite pipeline was conducted in ANSYS WORKBENCH to explore the influence of wear defect
depth and axial length on mechanical performance under different fluid pressures, the prediction function relationship of the maximum total deformation and maximum equivalent strain of pipelines under different pressures are
given, and a composite strength model of damaged pipelines is established. According to the established model, the
pipeline does not fail before the inner wall is completely damaged, and when the wear depth and wall thickness ratio is 0.4, its mechanical performance decrease significantly, when it needs to be key monitored or replaced.

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