Abstract
For the dynamic response of hydraulic pipe, experts have a certain research foundation. However, for the research on the swaging repair of hydraulic pipe, the specific swaging parameters are not defined and analyzed in the manual. The research on the vibration characteristics of swaged pipe is almost blank. In this paper, the sine sweep experiment is carried out on a section of civil aircraft hydraulic pipe under typical swaging parameters, and the first six-order natural frequencies are obtained. Then, based on the basic principle of fluid-structure interaction, the modal analysis of the hydraulic pipe is carried out in ANSYS Workbench, the rationality of the Finite Element (FE) model is verified by comparing the simulation data with the experimental data. Taking the Swaging Length (SL) and Swaging Gap (SG) as the research object, 64 groups of hydraulic pipe models are established. Through modal analysis, it is determined that the maximum stress and strain of the hydraulic pipe is the pressure pipe joint, and the reasonable swaging parameters are obtained based on the actual swaging process. Finally, the harmonic response of the pipe model is analyzed based on the modal analysis results. It is found that the resonance is easier to occur at the first-order natural frequency, which is helpful to provide some references for the actual maintenance of aircraft hydraulic pipe.
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Lingjie, Y., Shikang, C., Yuan, W. (2023). Study on Swaging Parameters and Vibration Characteristics of 0.25inch Civil Aircraft Hydraulic Pipe. In: Chinese Society of Aeronautics and Astronautics (eds) Proceedings of the 10th Chinese Society of Aeronautics and Astronautics Youth Forum. CASTYSF 2022. Lecture Notes in Electrical Engineering, vol 972. Springer, Singapore. https://doi.org/10.1007/978-981-19-7652-0_12
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DOI: https://doi.org/10.1007/978-981-19-7652-0_12
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