Sealing design and test verification of helicopter composite fuel tank

doi:10.19936/j.cnki.2096-8000.20230428.013

Abstract

Abstract: Composite materials, as a new generation of lightweight and high-strength materials, have been widely used in the aerospace manufacturing industry. In terms of the structural design of composite fuel tanks, the core issue relies on the seal design under the strength requirements. In this paper, firstly, according to the air impermeability requirement, ABAQUS finite element analysis software was used to analyze the overall composite strain distribution, and then the seal structure design was optimized. After that, the composite fuel tank components are manufactured according to the design requirements, and finally the assembled overall composite fuel tank was verified. The results show that the designed composite fuel tank can fully meet the requirements of air impermeability pressure test and the oil resistance test as well.

Key words: composite fuel tank manufacturing, finite element analysis, seal structure design, air impermeability test, fuel resistance test

CLC Number:

TB332

XIN Zhibo, ZHU Yansong, DUAN Yugang, WANG Ben, HUANG Zhiwen, WANG Hongxiao, MING Yueke. Sealing design and test verification of helicopter composite fuel tank[J]. COMPOSITES SCIENCE AND ENGINEERING, 2023, 0(4): 87-93.

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