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Applied Sciences
Volume 14
Issue 17
10.3390/app14178008
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Article

Simulation Analysis and Experimental Investigation on the Fluid–Structure Interaction Vibration Characteristics of Aircraft Liquid-Filled Pipelines under the Superimposed Impact of External Random Vibration and Internal Pulsating Pressure

by
Lei Zhu
1,
Chang Chen
1,* and
Yu Jiang
2
1
Administration and Support Department, National University of Defense Technology, Changsha 410073, China
2
College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, China
*
Author to whom correspondence should be addressed.
Appl. Sci. 2024, 14(17), 8008; https://doi.org/10.3390/app14178008
Submission received: 3 August 2024 / Revised: 2 September 2024 / Accepted: 2 September 2024 / Published: 7 September 2024
(This article belongs to the Special Issue Aerotech, Aerospace and Security Applications in the Age of Artificial Intelligence Support for Industry 4.0 and Green Technology)
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Abstract

This paper investigated the fluid–structure interaction vibration response of an aircraft liquid-filled pipeline under external random vibration and internal pulsating pressure. First, the fluid–structure interaction solution is theoretically analyzed, and the advantages and disadvantages of the direct coupling method and the separation coupling method are compared, with the latter chosen as the simulation analysis method in this study. Second, taking the U-shaped oil pipeline of an aircraft engine as an example, simulation modeling was performed to compare and analyze the fluid–structure interaction vibration response of aircraft liquid-filled pipelines under different working conditions, obtaining the vibration response characteristics of stress danger points under various conditions. Finally, a test bench for an aircraft liquid-filling pipeline was built to explore the influence of external random vibrations with different kurtoses, different pipe wall thicknesses and different working conditions on the vibration response danger points of aircraft liquid-filling pipelines, verifying the simulation conclusions and providing a basis for aircraft liquid-filling pipeline design.
Keywords: fluid–structure interaction; vibration characteristics; aircraft liquid-filled pipeline fluid–structure interaction; vibration characteristics; aircraft liquid-filled pipeline

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MDPI and ACS Style

Zhu, L.; Chen, C.; Jiang, Y. Simulation Analysis and Experimental Investigation on the Fluid–Structure Interaction Vibration Characteristics of Aircraft Liquid-Filled Pipelines under the Superimposed Impact of External Random Vibration and Internal Pulsating Pressure. Appl. Sci. 2024, 14, 8008. https://doi.org/10.3390/app14178008

AMA Style

Zhu L, Chen C, Jiang Y. Simulation Analysis and Experimental Investigation on the Fluid–Structure Interaction Vibration Characteristics of Aircraft Liquid-Filled Pipelines under the Superimposed Impact of External Random Vibration and Internal Pulsating Pressure. Applied Sciences. 2024; 14(17):8008. https://doi.org/10.3390/app14178008

Chicago/Turabian Style

Zhu, Lei, Chang Chen, and Yu Jiang. 2024. "Simulation Analysis and Experimental Investigation on the Fluid–Structure Interaction Vibration Characteristics of Aircraft Liquid-Filled Pipelines under the Superimposed Impact of External Random Vibration and Internal Pulsating Pressure" Applied Sciences 14, no. 17: 8008. https://doi.org/10.3390/app14178008

APA Style

Zhu, L., Chen, C., & Jiang, Y. (2024). Simulation Analysis and Experimental Investigation on the Fluid–Structure Interaction Vibration Characteristics of Aircraft Liquid-Filled Pipelines under the Superimposed Impact of External Random Vibration and Internal Pulsating Pressure. Applied Sciences, 14(17), 8008. https://doi.org/10.3390/app14178008

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