Numerical Study on Improved Geometry of Outlet Pressure Ripple in Parallel 2D Piston Pumps
Because the axial piston pump is often used in the aerospace and aviation fields, it is necessary to pay attention to its outlet pressure and flow characteristics. The parallel 2D piston pump proposed, based on the axial piston pump, has no structural flow ripple because it has a rail with a uniform...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-10-01
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| Series: | Aerospace |
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| Online Access: | https://www.mdpi.com/2226-4310/9/10/629 |
| _version_ | 1797476326625509376 |
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| author | Yu Huang Qianqian Lu Wei Shao Li Liu Chuan Ding Jian Ruan |
| author_facet | Yu Huang Qianqian Lu Wei Shao Li Liu Chuan Ding Jian Ruan |
| author_sort | Yu Huang |
| collection | DOAJ |
| description | Because the axial piston pump is often used in the aerospace and aviation fields, it is necessary to pay attention to its outlet pressure and flow characteristics. The parallel 2D piston pump proposed, based on the axial piston pump, has no structural flow ripple because it has a rail with a uniform acceleration and deceleration. Now, the pump is used in the special working conditions of the aerospace field, and it is required to meet the rated flow of 50 L/min, the rated load of 8 MPa, and an extremely low-pressure ripple. Based on CFD technology, this paper studies the pump’s outlet flow and pressure ripples through numerical simulation. According to the causes of the outlet pressure ripple, an improved geometry is determined to further reduce the outlet pressure ripple. Using a high-frequency pressure sensor to measure the outlet pressure ripple of the optimized pump prototype, it was found that the outlet pressure ripple rate of the prototype was only 6%. The parallel 2D piston pump has been proved by the simulation and test that its outlet pressure ripple is extremely low. However, it is not effective to reduce the outlet flow ripple by increasing the pre-pressure and reducing the backflow. In parallel 2D piston pumps, it is still necessary to find a new method to further reduce outlet pressure and flow ripples. |
| first_indexed | 2024-03-09T20:56:18Z |
| format | Article |
| id | doaj.art-415867a948ea4f33a5a9e281c3f29921 |
| institution | Directory Open Access Journal |
| issn | 2226-4310 |
| language | English |
| last_indexed | 2024-03-09T20:56:18Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Aerospace |
| spelling | doaj.art-415867a948ea4f33a5a9e281c3f299212023-11-23T22:19:28ZengMDPI AGAerospace2226-43102022-10-0191062910.3390/aerospace9100629Numerical Study on Improved Geometry of Outlet Pressure Ripple in Parallel 2D Piston PumpsYu Huang0Qianqian Lu1Wei Shao2Li Liu3Chuan Ding4Jian Ruan5School of Engineering, Zhejiang University City College, Hangzhou 310000, ChinaSchool of Engineering, Zhejiang University City College, Hangzhou 310000, ChinaSchool of Engineering, Zhejiang University City College, Hangzhou 310000, ChinaSchool of Engineering, Zhejiang University City College, Hangzhou 310000, ChinaKey Laboratory of Special Purpose Equipment and Advanced Manufacturing Technology, Ministry of Education & Zhejiang Province, Zhejiang University of Technology, Hangzhou 310014, ChinaKey Laboratory of Special Purpose Equipment and Advanced Manufacturing Technology, Ministry of Education & Zhejiang Province, Zhejiang University of Technology, Hangzhou 310014, ChinaBecause the axial piston pump is often used in the aerospace and aviation fields, it is necessary to pay attention to its outlet pressure and flow characteristics. The parallel 2D piston pump proposed, based on the axial piston pump, has no structural flow ripple because it has a rail with a uniform acceleration and deceleration. Now, the pump is used in the special working conditions of the aerospace field, and it is required to meet the rated flow of 50 L/min, the rated load of 8 MPa, and an extremely low-pressure ripple. Based on CFD technology, this paper studies the pump’s outlet flow and pressure ripples through numerical simulation. According to the causes of the outlet pressure ripple, an improved geometry is determined to further reduce the outlet pressure ripple. Using a high-frequency pressure sensor to measure the outlet pressure ripple of the optimized pump prototype, it was found that the outlet pressure ripple rate of the prototype was only 6%. The parallel 2D piston pump has been proved by the simulation and test that its outlet pressure ripple is extremely low. However, it is not effective to reduce the outlet flow ripple by increasing the pre-pressure and reducing the backflow. In parallel 2D piston pumps, it is still necessary to find a new method to further reduce outlet pressure and flow ripples.https://www.mdpi.com/2226-4310/9/10/629parallel 2D piston pumppressure ripplebackflowCFD simulation |
| spellingShingle | Yu Huang Qianqian Lu Wei Shao Li Liu Chuan Ding Jian Ruan Numerical Study on Improved Geometry of Outlet Pressure Ripple in Parallel 2D Piston Pumps Aerospace parallel 2D piston pump pressure ripple backflow CFD simulation |
| title | Numerical Study on Improved Geometry of Outlet Pressure Ripple in Parallel 2D Piston Pumps |
| title_full | Numerical Study on Improved Geometry of Outlet Pressure Ripple in Parallel 2D Piston Pumps |
| title_fullStr | Numerical Study on Improved Geometry of Outlet Pressure Ripple in Parallel 2D Piston Pumps |
| title_full_unstemmed | Numerical Study on Improved Geometry of Outlet Pressure Ripple in Parallel 2D Piston Pumps |
| title_short | Numerical Study on Improved Geometry of Outlet Pressure Ripple in Parallel 2D Piston Pumps |
| title_sort | numerical study on improved geometry of outlet pressure ripple in parallel 2d piston pumps |
| topic | parallel 2D piston pump pressure ripple backflow CFD simulation |
| url | https://www.mdpi.com/2226-4310/9/10/629 |
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