Affiliation(s):
School of Automation Science and Electrical Engineering, Beihang University, Beijing 100191, China;
moreAffiliation(s): School of Automation Science and Electrical Engineering, Beihang University, Beijing 100191, China; Research Institute for Frontier Science, Beihang University, Beijing 100191, China; Key Laboratory of Advanced Airborne Systems, Beihang University, Beijing 100191, China; Ningbo Institute of Technology, Beihang University, Ningbo 315800, China; Tianmushan Laboratory, Hangzhou 310023, China;
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Yang DENG, Zongxia JIAO, Yuanzhi XU. Frequency-domain analysis of fluid-structure interaction in aircraft hydraulic pipeline systems: Numerical and experimental studies[J]. Journal of Zhejiang University Science A,in press.Frontiers of Information Technology & Electronic Engineering,in press.https://doi.org/10.1631/jzus.A2300517
@article{title="Frequency-domain analysis of fluid-structure interaction in aircraft hydraulic pipeline systems: Numerical and experimental studies", author="Yang DENG, Zongxia JIAO, Yuanzhi XU", journal="Journal of Zhejiang University Science A", year="in press", publisher="Zhejiang University Press & Springer", doi="https://doi.org/10.1631/jzus.A2300517" }
%0 Journal Article %T Frequency-domain analysis of fluid-structure interaction in aircraft hydraulic pipeline systems: Numerical and experimental studies %A Yang DENG %A Zongxia JIAO %A Yuanzhi XU %J Journal of Zhejiang University SCIENCE A %P %@ 1673-565X %D in press %I Zhejiang University Press & Springer doi="https://doi.org/10.1631/jzus.A2300517"
TY - JOUR T1 - Frequency-domain analysis of fluid-structure interaction in aircraft hydraulic pipeline systems: Numerical and experimental studies A1 - Yang DENG A1 - Zongxia JIAO A1 - Yuanzhi XU J0 - Journal of Zhejiang University Science A SP - EP - %@ 1673-565X Y1 - in press PB - Zhejiang University Press & Springer ER - doi="https://doi.org/10.1631/jzus.A2300517"
Abstract: The fluid-structure interaction (FSI) in aircraft hydraulic pipeline systems is of great concern because of the damage it causes. To accurately predict the vibration characteristic of long hydraulic pipelines with curved segments, we studied the frequency-domain modelling and solution method for FSI in these pipeline systems. Fourteen partial differential equations (PDEs) are utilized to model the pipeline FSI, considering both frequency-dependent friction and bending-flexibility modification. To address the numerical instability encountered by the traditional transfer matrix method (TMM) in solving relatively complex pipelines, an improved TMM is proposed for solving the PDEs in the frequency domain, based on the matrix-stacking strategy and matrix representation of boundary conditions. The proposed FSI model and improved solution method are validated by numerical cases and experiments. An experimental rig of a practical hydraulic system, consisting of an aircraft engine-driven pump, a Z-shaped aero-hydraulic pipeline, and a throttle valve, was constructed for testing. The impedance method is introduced to evaluate the theoretical and experimental results, which indicate that the proposed model and solution method are effective in practical applications. The methodology presented in this paper can be used as an efficient approach for the vibrational design of aircraft hydraulic pipeline systems.
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