Research on the distribution structure of 2D piston electro-hydraulic pump based on fluid-structure interaction
To address the drawbacks of traditional hydraulic power units, we embedded a 2D piston pump inside the motor rotor, proposing a 2D piston electro-hydraulic pump. The space cam mechanism serves as the primary force-bearing structure during its operation. Excessive wear occurs at the highest point of...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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SAGE Publishing
2024-10-01
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| Series: | Advances in Mechanical Engineering |
| Online Access: | https://doi.org/10.1177/16878132241264985 |
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| author | Xin-Guo Qiu Kui-Ge Chen Ping Wu Ying Zheng Chen Wang Xing-Jian Ji |
| author_facet | Xin-Guo Qiu Kui-Ge Chen Ping Wu Ying Zheng Chen Wang Xing-Jian Ji |
| author_sort | Xin-Guo Qiu |
| collection | DOAJ |
| description | To address the drawbacks of traditional hydraulic power units, we embedded a 2D piston pump inside the motor rotor, proposing a 2D piston electro-hydraulic pump. The space cam mechanism serves as the primary force-bearing structure during its operation. Excessive wear occurs at the highest point of the space cam when subjected to significant axial forces, which leads to deviations between the motion law of the 2D piston and the theoretical design. Aiming this problem, we conduct research from two perspectives: theoretical analysis and fluid-structure interaction. Firstly, the operational principle of the electro-hydraulic pump is introduced. Then, the contact normal stress of the space cam mechanism is studied, and backflow and chamber pressure overshooting are discussed. Finally, the fluid-structure interaction model of the electro-hydraulic pump is established. Based on the fluid-structure interaction model, the effects of the width and depth angles of the triangular damping groove on the backflow and chamber pressure overshooting are analyzed. The simulation results demonstrate that adding triangular damping grooves can improve the flow field characteristics. With the increase in the width and depth angles, the peak flow of the backflow and chamber pressure overshooting increase, with the depth angle exerting a more pronounced effect. |
| format | Article |
| id | doaj-art-bf19e6d7b9464aebbbb22a3f74bd6022 |
| institution | OA Journals |
| issn | 1687-8140 |
| language | English |
| publishDate | 2024-10-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Advances in Mechanical Engineering |
| spelling | doaj-art-bf19e6d7b9464aebbbb22a3f74bd60222025-08-20T01:47:26ZengSAGE PublishingAdvances in Mechanical Engineering1687-81402024-10-011610.1177/16878132241264985Research on the distribution structure of 2D piston electro-hydraulic pump based on fluid-structure interactionXin-Guo Qiu0Kui-Ge Chen1Ping Wu2Ying Zheng3Chen Wang4Xing-Jian Ji5 Key Laboratory of Special Purpose Equipment and Advanced Processing Technology, Ministry of Education and Zhejiang Province, Hangzhou, Zhejiang, China Key Laboratory of Special Purpose Equipment and Advanced Processing Technology, Ministry of Education and Zhejiang Province, Hangzhou, Zhejiang, China Key Laboratory of Special Purpose Equipment and Advanced Processing Technology, Ministry of Education and Zhejiang Province, Hangzhou, Zhejiang, China Key Laboratory of Special Purpose Equipment and Advanced Processing Technology, Ministry of Education and Zhejiang Province, Hangzhou, Zhejiang, China Key Laboratory of Special Purpose Equipment and Advanced Processing Technology, Ministry of Education and Zhejiang Province, Hangzhou, Zhejiang, China Key Laboratory of Special Purpose Equipment and Advanced Processing Technology, Ministry of Education and Zhejiang Province, Hangzhou, Zhejiang, ChinaTo address the drawbacks of traditional hydraulic power units, we embedded a 2D piston pump inside the motor rotor, proposing a 2D piston electro-hydraulic pump. The space cam mechanism serves as the primary force-bearing structure during its operation. Excessive wear occurs at the highest point of the space cam when subjected to significant axial forces, which leads to deviations between the motion law of the 2D piston and the theoretical design. Aiming this problem, we conduct research from two perspectives: theoretical analysis and fluid-structure interaction. Firstly, the operational principle of the electro-hydraulic pump is introduced. Then, the contact normal stress of the space cam mechanism is studied, and backflow and chamber pressure overshooting are discussed. Finally, the fluid-structure interaction model of the electro-hydraulic pump is established. Based on the fluid-structure interaction model, the effects of the width and depth angles of the triangular damping groove on the backflow and chamber pressure overshooting are analyzed. The simulation results demonstrate that adding triangular damping grooves can improve the flow field characteristics. With the increase in the width and depth angles, the peak flow of the backflow and chamber pressure overshooting increase, with the depth angle exerting a more pronounced effect.https://doi.org/10.1177/16878132241264985 |
| spellingShingle | Xin-Guo Qiu Kui-Ge Chen Ping Wu Ying Zheng Chen Wang Xing-Jian Ji Research on the distribution structure of 2D piston electro-hydraulic pump based on fluid-structure interaction Advances in Mechanical Engineering |
| title | Research on the distribution structure of 2D piston electro-hydraulic pump based on fluid-structure interaction |
| title_full | Research on the distribution structure of 2D piston electro-hydraulic pump based on fluid-structure interaction |
| title_fullStr | Research on the distribution structure of 2D piston electro-hydraulic pump based on fluid-structure interaction |
| title_full_unstemmed | Research on the distribution structure of 2D piston electro-hydraulic pump based on fluid-structure interaction |
| title_short | Research on the distribution structure of 2D piston electro-hydraulic pump based on fluid-structure interaction |
| title_sort | research on the distribution structure of 2d piston electro hydraulic pump based on fluid structure interaction |
| url | https://doi.org/10.1177/16878132241264985 |
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