To improve the transmission efficiency and reduce the damage to pipes in the hydraulic systems of tunnel boring machine subjected to random vibration, this paper aims to propose a novel dynamic characteristic analysis method that considers random vibration.
A fluid-structure interaction motion equation of the pipe is established by using Hamilton’s principle. The finite element method and discrete analysis method of random vibration are used to construct a model of the dynamic behavior of the pipe.
The influences of fluid parameters and external excitation parameters on the dynamic characteristics of pipes are analyzed. The experimental results are found to be in good agreement with the simulation results, which demonstrates that the proposed analytical method can provide a theoretical reference for the design and selection of hydraulic pipes subjected to random vibration.
The proposed method can be regarded as a future calculation method for pipes subjected to random vibration, and the transmission efficiency of the pipe can be improved.
The authors gratefully acknowledge the financial supported by National Basic Research Development Program of China (973 Program, Grant No.2013CB035400).
Conflicts of interest: The authors declare that they have no conflicts of interest.
Qu, W., Zhang, H., Li, W., Peng, L. and Sun, W. (2021), "In-plane dynamic response of a hydraulic pipe subjected to random vibration", Engineering Computations, Vol. 38 No. 3, pp. 1170-1186. https://doi.org/10.1108/EC-10-2019-0442
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