【摘要】 以两轮、一张紧器和一多楔带组成的典型的三带轮为研究对象,测试了该传动系统中从动轮的滑移率。建立了从动轮滑移率计算的数学模型,并进行了计算分析。从动轮滑移率的计算值与实测值吻合较好,验证了从动轮滑移率计算模型的正确性。以多楔带的线密度和带-轮间摩擦系数为变量,滑移率最小为目标,对带-轮滑移特性进行优化。计算结果表明,文中建立的控制从动轮滑移率优化方法是有效的。文中的实验方法和计算方法对多楔带传动系统(如发动机前端附件驱动系统)带与轮之间的滑移控制的设计具有参考价值。更多还原

【Abstract】 A prototypical serpentine belt drive system,which includes two pulleys,one tensioner and belt,is taken as an example,and slip rate between driven pulley and belt is measured and calculated.A mathematical model for calculating the slip rate is presented,and the slip rate is estimated for the proposed model.The estimated and tested slip rate agrees well,which validate the proposed model and experimental method.Taking density of the belt and frictional factor between belt and pulley as optimized variables,and slip rate as an objective function for optimization,the optimized density and frictional factor are obtained.The estimated slip rate using the optimized variables is reduced greatly compared to the original dada.It is demonstrated that the method for optimially controlling the slip rate proposed in this paper is effective.The measurement and optimization method for slip rate is useful for controlling slip rate between pulley and belt in complex serpentine belt drive systems,such as accessory drive system at engine front end.更多还原