摘要
为研究油液的物理特性对齿轮泵脉动及噪声的影响机理，运用FLuENT对齿轮泵的二维内部流场进行模拟研究，对比分析了有无油液的压缩性、粘度对齿轮泵内部流场及泵出口脉动的影响。仿真结果表明：考虑压缩性较不考虑压缩性时，流量脉动系数增大了3．43％，压力脉动系数增大0．2％；考虑粘度变化较不考虑粘度变化时，流量脉动系数减小1．54％，压力脉动系数减小0．08％；考虑油液特征模型较不考虑时噪声增大了2．7dB。仿真与实验结果相吻合，为开展齿轮泵的非线性流体动力学及减振降噪等方面的研究提供了理论依据。
In order to study the impact mechanism of the physical characteristics of oil on the pulsation and noiseof the gear pump, the software FLUENT is used to simulate the two - dimensional internal flow field of the gear pumpduring the situation whether considering the compressibility and viscosity of the fluid or not. The simulation resultsrevels the following three special characteristics：I. Compared with the model without considering compressibility, thatthe flow ripple coefficient increases by 3.43% and the pressure fluctuation coefficient increases by 0.2%. II. Whenthe viscosity change is considered, the flow fluctuation coefficient decreases by 1.54% and the mean value of pressurefluctuation is reduced by 0.08%. III. Considering the oil compression model,the model noise is increased by 2.7dB.The simulation results are in agreement with the experimental results, which builds the theoretical basis for the re-search of nonlinear fluid dynamics, vibration insulation and noise reduction of gear pump.
出处
《陕西交通职业技术学院学报》
2017年第4期1-6,共6页
Journal of Shaanxi College of Communication Technology
基金
国家自然科学基金资助项目(51675399、51275375)
关键词
齿轮泵
油液特征
脉动特性
减振降噪
数值仿真
characteristics of oil
fluctuation property
vibration insulation and noise reduction
numerical simulation
作者简介
高彦军(1979-),男,陕西交通职业技术学院汽车工程学院讲师,硕士。
