{"title":"减少齿轮泵的输送压力波动","authors":"Kamran Nazir, Chang Hyun Sohn","doi":"10.1007/s12206-024-0713-9","DOIUrl":null,"url":null,"abstract":"<p>Generated rotor (gerotor) pumps have commercial applications in oil supply pumps and compressors. Unfortunately, they produce an excessive amount of noise while in operation. The present study focuses on reducing the noise, which is caused due to pressure oscillations in the fluid, and vibration levels when a gerotor pump is in operation. Three-dimensional numerical simulations were performed on the gerotor pump using the dynamic mesh method. The flow field was simulated using the commercial software Ansys Fluent. The mesh motion was provided in the form of a user-defined function. Computational fluid dynamics analysis was performed for different combinations of delivery pipe length and diameter, and their effects on delivery pressure were analyzed. It is observed from numerical results that the pressure oscillations are reduced around 20 % by increasing volume of port or pipe region, which in turn reduces the noise levels. It is concluded that the pressure oscillations during the fluid flow are highly dependent on the volume of the delivery pipe.</p>","PeriodicalId":16235,"journal":{"name":"Journal of Mechanical Science and Technology","volume":"20 1","pages":""},"PeriodicalIF":1.5000,"publicationDate":"2024-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Reduction of delivery pressure fluctuations in a gerotor pump\",\"authors\":\"Kamran Nazir, Chang Hyun Sohn\",\"doi\":\"10.1007/s12206-024-0713-9\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Generated rotor (gerotor) pumps have commercial applications in oil supply pumps and compressors. Unfortunately, they produce an excessive amount of noise while in operation. The present study focuses on reducing the noise, which is caused due to pressure oscillations in the fluid, and vibration levels when a gerotor pump is in operation. Three-dimensional numerical simulations were performed on the gerotor pump using the dynamic mesh method. The flow field was simulated using the commercial software Ansys Fluent. The mesh motion was provided in the form of a user-defined function. Computational fluid dynamics analysis was performed for different combinations of delivery pipe length and diameter, and their effects on delivery pressure were analyzed. It is observed from numerical results that the pressure oscillations are reduced around 20 % by increasing volume of port or pipe region, which in turn reduces the noise levels. It is concluded that the pressure oscillations during the fluid flow are highly dependent on the volume of the delivery pipe.</p>\",\"PeriodicalId\":16235,\"journal\":{\"name\":\"Journal of Mechanical Science and Technology\",\"volume\":\"20 1\",\"pages\":\"\"},\"PeriodicalIF\":1.5000,\"publicationDate\":\"2024-08-02\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Mechanical Science and Technology\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://doi.org/10.1007/s12206-024-0713-9\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"ENGINEERING, MECHANICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Mechanical Science and Technology","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1007/s12206-024-0713-9","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, MECHANICAL","Score":null,"Total":0}
Reduction of delivery pressure fluctuations in a gerotor pump
Generated rotor (gerotor) pumps have commercial applications in oil supply pumps and compressors. Unfortunately, they produce an excessive amount of noise while in operation. The present study focuses on reducing the noise, which is caused due to pressure oscillations in the fluid, and vibration levels when a gerotor pump is in operation. Three-dimensional numerical simulations were performed on the gerotor pump using the dynamic mesh method. The flow field was simulated using the commercial software Ansys Fluent. The mesh motion was provided in the form of a user-defined function. Computational fluid dynamics analysis was performed for different combinations of delivery pipe length and diameter, and their effects on delivery pressure were analyzed. It is observed from numerical results that the pressure oscillations are reduced around 20 % by increasing volume of port or pipe region, which in turn reduces the noise levels. It is concluded that the pressure oscillations during the fluid flow are highly dependent on the volume of the delivery pipe.
期刊介绍：
The aim of the Journal of Mechanical Science and Technology is to provide an international forum for the publication and dissemination of original work that contributes to the understanding of the main and related disciplines of mechanical engineering, either empirical or theoretical. The Journal covers the whole spectrum of mechanical engineering, which includes, but is not limited to, Materials and Design Engineering, Production Engineering and Fusion Technology, Dynamics, Vibration and Control, Thermal Engineering and Fluids Engineering.
Manuscripts may fall into several categories including full articles, solicited reviews or commentary, and unsolicited reviews or commentary related to the core of mechanical engineering.
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