| WANG Zhiqiang(王志强)* **,DAI Zejun*,LI Xinglin***,HE Wen**,GAO Dianrong****.[J].高技术通讯(英文),2022,28(3):328~336 |
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| Analysis of force and leakage in water hydraulic motor’s piston pairs |
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| DOI：10.3772/j.issn.1006-6748.2022.03.012 |
| 中文关键词: |
| 英文关键词: water hydraulic motor, piston pairs, clearance, leakage flow, numerical simulation |
| 基金项目: |
| Author Name | Affiliation | | WANG Zhiqiang(王志强)* ** | (*School of Mechanical Engineering, Hangzhou Dianzi University, Hangzhou 310018, P.R.China)
(**School of Mechanical Engineering, Zhejiang University, Hangzhou 310058, P.R.China)
(***Post Doctoral Research Center, Hangzhou Bearing Test&Research Center Co. Ltd., Hangzhou 310022, P.R.China)
(****School of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, P.R.China) | | DAI Zejun* | (*School of Mechanical Engineering, Hangzhou Dianzi University, Hangzhou 310018, P.R.China)
(**School of Mechanical Engineering, Zhejiang University, Hangzhou 310058, P.R.China)
(***Post Doctoral Research Center, Hangzhou Bearing Test&Research Center Co. Ltd., Hangzhou 310022, P.R.China)
(****School of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, P.R.China) | | LI Xinglin*** | (*School of Mechanical Engineering, Hangzhou Dianzi University, Hangzhou 310018, P.R.China)
(**School of Mechanical Engineering, Zhejiang University, Hangzhou 310058, P.R.China)
(***Post Doctoral Research Center, Hangzhou Bearing Test&Research Center Co. Ltd., Hangzhou 310022, P.R.China)
(****School of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, P.R.China) | | HE Wen** | (*School of Mechanical Engineering, Hangzhou Dianzi University, Hangzhou 310018, P.R.China)
(**School of Mechanical Engineering, Zhejiang University, Hangzhou 310058, P.R.China)
(***Post Doctoral Research Center, Hangzhou Bearing Test&Research Center Co. Ltd., Hangzhou 310022, P.R.China)
(****School of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, P.R.China) | | GAO Dianrong**** | (*School of Mechanical Engineering, Hangzhou Dianzi University, Hangzhou 310018, P.R.China)
(**School of Mechanical Engineering, Zhejiang University, Hangzhou 310058, P.R.China)
(***Post Doctoral Research Center, Hangzhou Bearing Test&Research Center Co. Ltd., Hangzhou 310022, P.R.China)
(****School of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, P.R.China) |
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| 中文摘要: |
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| 英文摘要: |
| The positive pressure between pistonwall and piston hole of inner curve water hydraulic motor’s piston pairs is analyzed. The flow field of the piston pairs is numerically calculated and analyzed by the use of computational fluid dynamics method. The pressure and velocity distribution of flow field at different clearance is analyzed in the paper. The results show that when the clearance is 4-8μm, with the increase of clearance, the negative pressure and the velocity of piston chamber decrease significantly, the velocity and leakage flow of the clearance increase. However, when the clearance is 10μm, the negative pressure and the velocity of plunger chamber increase suddenly. By comprehensive analysis, the cylinder annular clearance should be controlled to be near 8μm. |
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