Study on Crack Leakage of Aircraft Hydraulic Pipeline

Zhao Jinfang, Li Chong, Li Chong, Sun Dan, Fu Xiaopu, Tian Linhui

2022

Abstract

The problem of aircraft hydraulic pipe is one of the frequent problems in the daily maintenance process. After a long flight, it will gradually expose structural scratches, pipe extrusion, longitudinal cracks, oil leakage, blasting, etc. Based on the big data of the quality report of a single flight, this paper studied the main causes of cracks at the root of the flat nozzle, and proposes targeted improvement measures from the structural layout, operation mode, typical leakage. ANSYS simulation shows that the root of the flat nozzle of the guide pipe is at the rear of the fuselage under different frequencies and forces. The equivalent stress and elastic deformation were observed by metallography analyzer and X-ray spectrum analyzer. It was concluded that under the in-stallation stress of the tube itself, the root of the nozzle of the flat tube would produce extrusion friction with the tube under the condition.The tube body was resonated with the body of the body, leading to the fracture from the outside to the inside.

Paper Citation

in Harvard Style

Jinfang Z., Chong L., Dan S., Xiaopu F. and Linhui T. (2022). Study on Crack Leakage of Aircraft Hydraulic Pipeline. In Proceedings of the 3rd International Symposium on Water, Ecology and Environment - Volume 1: ISWEE; ISBN 978-989-758-639-2, SciTePress, pages 187-191. DOI: 10.5220/0011955700003536

in Bibtex Style

@conference{iswee22,
author={Zhao Jinfang and Li Chong and Sun Dan and Fu Xiaopu and Tian Linhui},
title={Study on Crack Leakage of Aircraft Hydraulic Pipeline},
booktitle={Proceedings of the 3rd International Symposium on Water, Ecology and Environment - Volume 1: ISWEE},
year={2022},
pages={187-191},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0011955700003536},
isbn={978-989-758-639-2},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 3rd International Symposium on Water, Ecology and Environment - Volume 1: ISWEE
TI - Study on Crack Leakage of Aircraft Hydraulic Pipeline
SN - 978-989-758-639-2
AU - Jinfang Z.
AU - Chong L.
AU - Dan S.
AU - Xiaopu F.
AU - Linhui T.
PY - 2022
SP - 187
EP - 191
DO - 10.5220/0011955700003536
PB - SciTePress