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双圆弧油槽摩擦副广泛应用于液黏传动,为了研究油槽结构参数对油膜剪切转矩的影响,对摩擦副间流体的流动特性进行数值模拟,得到了油膜剪切转矩。建立了集流场参数化建模(CAD)、数值模拟(CFX)、试验设计方法(DOE)及响应曲面法(RSM)为一体的油槽参数影响分析平台,分析了油槽深度、油槽宽度和油槽数目对油膜剪切转矩的影响并建立了近似响应曲面模型。搭建转矩性能试验台进行试验验证,结果表明:油膜剪切转矩随着油槽深度、宽度和数目的增大均减小,而油槽宽度对转矩的影响最大,油槽深度影响次之,油槽数目影响最小。通过理论和试验研究,应用CFX数值模拟和建立摩擦副油槽参数影响分析平台实现了CAD、CFX、DOE及RSM等技术的高度融合,可以准确地分析摩擦副油槽参数对油膜剪切转矩的影响。
In order to study the influence of structure parameters of oil groove on the shear torque of oil film, the flow characteristics of the fluid between the friction pairs are numerically simulated and the shearing torque of the oil film is obtained. The oil tank parameter influencing analysis platform integrating the flow field parametric modeling (CAD), numerical simulation (CFX), experimental design method (DOE) and response surface methodology (RSM) was established. The effects of oil groove depth, oil groove width and oil groove The number of the film shear torque and the establishment of an approximate response surface model. The experimental results show that the shearing torque of oil film decreases with the increase of oil groove depth, width and number, while the influence of oil groove width on torque is the greatest, followed by oil groove depth, oil groove Number of the least affected. Through the theoretical and experimental research, the CFX numerical simulation and the establishment of friction oil tank parameter analysis platform to achieve a high degree of integration of CAD, CFX, DOE and RSM technology can accurately analyze the friction oil tank parameters on the oil film shear torque .