Study on the Influence of Triangular Groove Structure on Steady-State Flow Force Compensation Characteristics
In this study, a structurally improved spool was designed. The diameter of one side of the spool stem was reduced, making the spool stem into a rounded table shape. A triangular groove was circumscribed on the step and on the same side. After liquid flow was guided through the triangular groove, the...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-11-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/11/23/11354 |
| _version_ | 1797508086701752320 |
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| author | Ruichuan Li Xinkai Ding Jianghai Lin Feng Chi Jikang Xu Yi Cheng Jilu Liu Qi Liu |
| author_facet | Ruichuan Li Xinkai Ding Jianghai Lin Feng Chi Jikang Xu Yi Cheng Jilu Liu Qi Liu |
| author_sort | Ruichuan Li |
| collection | DOAJ |
| description | In this study, a structurally improved spool was designed. The diameter of one side of the spool stem was reduced, making the spool stem into a rounded table shape. A triangular groove was circumscribed on the step and on the same side. After liquid flow was guided through the triangular groove, the flow direction changed. A flow component in the negative direction was generated, which reversely impacted the liquid flow in the positive direction. The liquid flow angle at the outlet increased; that is, jet angle increased and flow force decreased. The simulation results show that, increasing the depth, <i>H</i>, of the triangular groove has a positive effect on flow-force compensation and was conducive to the stability of the valve core. Properly increasing the groove’s bottom diameter, <i>D<sub>1</sub></i>, of the triangular groove was conducive to the stability of the spool, but when <i>D<sub>1</sub></i> was too large, the flow force increased. The experimental results are consistent with the simulation results, which proves that the improved structure can effectively reduce the flow force of the spool. |
| first_indexed | 2024-03-10T04:57:21Z |
| format | Article |
| id | doaj.art-871a5e32bf8646b0a330f3489185c771 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T04:57:21Z |
| publishDate | 2021-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-871a5e32bf8646b0a330f3489185c7712023-11-23T02:06:49ZengMDPI AGApplied Sciences2076-34172021-11-0111231135410.3390/app112311354Study on the Influence of Triangular Groove Structure on Steady-State Flow Force Compensation CharacteristicsRuichuan Li0Xinkai Ding1Jianghai Lin2Feng Chi3Jikang Xu4Yi Cheng5Jilu Liu6Qi Liu7College of Mechanical and Automotive Engineering, Shandong Academy of Sciences, Qilu University of Technology, Jinan 250000, ChinaCollege of Mechanical and Automotive Engineering, Shandong Academy of Sciences, Qilu University of Technology, Jinan 250000, ChinaShandong Machinery Design & Research Institute, Jinan 250000, ChinaShandong Lingong Construction Machinery Co., Ltd., Linyi 276000, ChinaCollege of Mechanical and Automotive Engineering, Shandong Academy of Sciences, Qilu University of Technology, Jinan 250000, ChinaCollege of Mechanical and Automotive Engineering, Shandong Academy of Sciences, Qilu University of Technology, Jinan 250000, ChinaCollege of Mechanical and Automotive Engineering, Shandong Academy of Sciences, Qilu University of Technology, Jinan 250000, ChinaCollege of Mechanical and Automotive Engineering, Shandong Academy of Sciences, Qilu University of Technology, Jinan 250000, ChinaIn this study, a structurally improved spool was designed. The diameter of one side of the spool stem was reduced, making the spool stem into a rounded table shape. A triangular groove was circumscribed on the step and on the same side. After liquid flow was guided through the triangular groove, the flow direction changed. A flow component in the negative direction was generated, which reversely impacted the liquid flow in the positive direction. The liquid flow angle at the outlet increased; that is, jet angle increased and flow force decreased. The simulation results show that, increasing the depth, <i>H</i>, of the triangular groove has a positive effect on flow-force compensation and was conducive to the stability of the valve core. Properly increasing the groove’s bottom diameter, <i>D<sub>1</sub></i>, of the triangular groove was conducive to the stability of the spool, but when <i>D<sub>1</sub></i> was too large, the flow force increased. The experimental results are consistent with the simulation results, which proves that the improved structure can effectively reduce the flow force of the spool.https://www.mdpi.com/2076-3417/11/23/11354steady flow forcediversionjet anglecompensation characteristics |
| spellingShingle | Ruichuan Li Xinkai Ding Jianghai Lin Feng Chi Jikang Xu Yi Cheng Jilu Liu Qi Liu Study on the Influence of Triangular Groove Structure on Steady-State Flow Force Compensation Characteristics Applied Sciences steady flow force diversion jet angle compensation characteristics |
| title | Study on the Influence of Triangular Groove Structure on Steady-State Flow Force Compensation Characteristics |
| title_full | Study on the Influence of Triangular Groove Structure on Steady-State Flow Force Compensation Characteristics |
| title_fullStr | Study on the Influence of Triangular Groove Structure on Steady-State Flow Force Compensation Characteristics |
| title_full_unstemmed | Study on the Influence of Triangular Groove Structure on Steady-State Flow Force Compensation Characteristics |
| title_short | Study on the Influence of Triangular Groove Structure on Steady-State Flow Force Compensation Characteristics |
| title_sort | study on the influence of triangular groove structure on steady state flow force compensation characteristics |
| topic | steady flow force diversion jet angle compensation characteristics |
| url | https://www.mdpi.com/2076-3417/11/23/11354 |
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