Mechanical Sciences
Mechanical Sciences
Mechanical Sciences
Articles | Volume 14, issue 2
Articles | Volume 14, issue 2
https://doi.org/10.5194/ms-14-259-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/ms-14-259-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 14, issue 2
Research article
 | 
11 Jul 2023
Research article |  | 11 Jul 2023

An investigation into the micro-geometric tapered-shape surface design of the piston bore of a piston–cylinder interface in an axial piston motor

Rui Liu, Yishan Zeng, Min Hu, Huabing Zhu, Changhai Liu, and Lei Wang

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Short summary
In order to reduce the energy loss and improve the wear resistance of a piston–cylinder pair in an axial piston motor，an optimized tapered piston bore is designed and applied. A fluid–structure interaction numerical model and a new test rig of the friction force of the piston–cylinder pair are developed. Numerical analysis and experimental results show that the optimized tapered-shape piston bore in an axial piston motor can achieve a significant reduction in leakage flow and friction force.
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