李术才,李梦天,张 霄,张庆松,郝彭帅,王子昂.基于数值模拟与实验的三角转子泵性能研究[J].农业机械学报,2018,49(9):389-396.
LI Shucai,LI Mengtian,ZHANG Xiao,ZHANG Qingsong,HAO Pengshuai,WANG Ziang.Investigation on Performance of Triangular Rotor Pump Based on Numerical Simulation and Experiment[J].Transactions of the Chinese Society for Agricultural Machinery,2018,49(9):389-396.
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基于数值模拟与实验的三角转子泵性能研究   [下载全文]
Investigation on Performance of Triangular Rotor Pump Based on Numerical Simulation and Experiment   [Download Pdf][in English]
投稿时间:2018-06-09  
DOI:10.6041/j.issn.1000-1298.2018.09.046
中文关键词:  三角转子泵  Wankel发动机  机械损失  数值模拟  实验
基金项目:国家重点研发计划项目(2016YFC0801600)
作者单位
李术才 山东大学 
李梦天 山东大学 
张 霄 山东大学 
张庆松 山东大学 
郝彭帅 山东大学 
王子昂 山东大学 
中文摘要:根据Wankel发动机传动原理,设计了一种双进出口的三角转子泵。阐述了三角转子泵的工作原理和结构特点,通过数值模拟和机械损失数学模型对三角转子泵的流量、压力、机械损失及机械效率等方面进行了计算和分析,并通过实验对数值模拟的预测结果进行了验证。结果表明,在额定转速190r/min时,进口流量波动较大,3个工作腔交替完成吸入和排出,出口总流量较为平稳;工作腔一个工作循环的压力环包括工作腔扩容、快速增压、稳定输出、快速降压4个阶段;实验流量和压力与模拟值吻合较好,随着转速的提高,压力和流量都明显提升,额定转速下流量和压力的模拟值分别为8.96m3/h、2 013.92kPa;通过机械损失数学模型得到的、在额定转速下密封片的摩擦损失、端面损失、轴承损失、齿轮啮合损失分别为103.4、182.5、60.5、33.2W,机械效率的模拟值和实验值较为吻合,分别为92.9%和93.3%。
LI Shucai  LI Mengtian  ZHANG Xiao  ZHANG Qingsong  HAO Pengshuai  WANG Ziang
Shandong University,Shandong University,Shandong University,Shandong University,Shandong University and Shandong University
Key Words:triangular rotor pump  Wankel engine  mechanical loss  numerical simulation  experiment
Abstract:According to the principle of Wankel engine transmission, a double inlet and outlet triangular rotor pump was designed, and the working principle, structural characteristics and mathematical model of cylinder line of the triangular rotor pump were described. Mathematical model of mechanical losses of the new pump such as seals loss, rotor end loss, bearings loss and gear meshing loss was built. The working fluid in the pump was numerically simulated by using Fluent. The results of numerical simulation and mathematical model were used to calculate and analyze the flow rate, pressure, mechanical loss and mechanical efficiency of the triangular rotor pump, and the results of numerical simulation were verified by experiments. The results showed that at a rated speed of 190r/min, the inlet flow rate was fluctuated, and the three working chambers alternately performed suction and discharge, and the total outlet flow was relatively stable. The pressure cycle of one work cycle of the working chamber included four phases of the working chamber expansion phase, the rapid pressurization phase, the stable output phase, and the rapid depressurization phase. The flow rate and pressure recorded in the experiment agreed well with the predicted values. With the increase of the rotational speed, the pressure and flow rate were significantly 〖JP3〗increased. The predicted values of the flow rate and pressure at the rated rotational speed were 8.96m3/h and 2013.92kPa, respectively. The friction loss of the seals, rotor end, bearings, and gear meshing at the rated rotational speed obtained by the mathematical model of mechanical loss were 103.4W, 182.5W, 60.5W and 33.2W, respectively, and the predicted and experimental values of mechanical efficiency were in good agreement, which were 92.9% and 93.3%, respectively.

Transactions of the Chinese Society for Agriculture Machinery (CSAM), in charged of China Association for Science and Technology (CAST), sponsored by CSAM and Chinese Academy of Agricultural Mechanization Science(CAAMS), started publication in 1957. It is the earliest interdisciplinary journal in Chinese which combines agricultural and engineering. It always closely grasps the development direction of agriculture engineering disciplines and the published papers represent the highest academic level of agriculture engineering in China. Currently, nearly 8,000 papers have been already published. There are around 3,000 papers contributed to the journal each year, but only around 600 of them will be accepted. Transactions of CSAM focuses on a wide range of agricultural machinery, irrigation, electronics, robotics, agro-products engineering, biological energy, agricultural structures and environment and more. Subjects in Transactions of the CSAM have been embodied by many internationally well-known index systems, such as: EI Compendex, CA, CSA, etc.

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