The Effect of Excessive Thermo-Mechanical Stress on the Performance of High-Pressure Hose Assemblies used under Flexing Motion 2024-26-0427
A typical high-pressure hose assembly consists of hose made with synthetic polymer braids and Teflon tube crimped with metallic fittings. These hose assemblies are mainly used for aircraft landing gear application considering its high-pressure sustenance and better flexibility.
The proposed study investigates the effect of thermo-mechanical stress generated due to cyclic soaking and flexibility testing at thermostatic subzero (-65°F) and high temperature (+275°F) on performance of high-pressure hose assembly.
This effect is further studied through hose tear-down which was envisioned to investigate the hose layer degradation and focused on changes in inner PTFE tube, which ultimately leads to product performance issues.
Keywords: braids, tear down analysis, thermo-mechanical, inter-layer abrasion.
Author(s):
Abhilash Neve, Sandip Patil
Affiliated:
Eaton India Innovation Center
Event:
AeroCON 2024
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Landing gear
Thermoplastics
Fittings
Polymers
Wear
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