Frequency-domain analysis of fluid-structure interaction in aircraft hydraulic pipeline systems: numerical and experimental studies

作     者：Yang DENG Zongxia JIAO Yuanzhi XU Yang DENG;Zongxia JIAO;Yuanzhi XU

作者机构：School of Automation Science and Electrical EngineeringBeihang UniversityBeijing 100191China Research Institute for Frontier ScienceBeihang UniversityBeijing 100191China Key Laboratory of Advanced Airborne SystemsBeihang UniversityBeijing 100191China Ningbo Institute of TechnologyBeihang UniversityNingbo 315800China Tianmushan LaboratoryHangzhou 310023China 

出 版 物：《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》 (浙江大学学报（英文版）A辑（应用物理与工程）)

年 卷 期：2024年第25卷第8期

页      面：605-617页

核心收录：

学科分类：082502[工学-航空宇航推进理论与工程] 08[工学] 0825[工学-航空宇航科学与技术] 

基　　金：supported by the National Natural Science Foundation of China(Nos.51975025 and 51890822) the Young Elite Scientists Sponsorship Program by China Association for Science and Technology(No.2016QNRC001) the National Key Research and Development Program of China(No.2019YFB2004500) 

主　　题：Fluid-structure interaction(FSI) Frequency-domain analysis Aircraft hydraulic pipeline Pipeline vibration Transfer matrix method(TMM) 

摘      要：The fluid-structure interaction(FSI)in aircraft hydraulic pipeline systems is of great concern because of the damage it *** accurately predict the vibration characteristic of long hydraulic pipelines with curved segments,we studied the frequency-domain modeling and solution method for FSI in these pipeline *** partial differential equations(PDEs)are utilized to model the pipeline FSI,considering both frequency-dependent friction and bending-flexibility *** 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 *** proposed FSI model and improved solution method are validated by numerical cases and *** 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 *** magnitude ratio of acceleration to pressure is introduced to evaluate the theoretical and experimental results,which indicate that the proposed model and solution method are effective in practical *** methodology presented in this paper can be used as an efficient approach for the vibrational design of aircraft hydraulic pipeline systems.