多楔带传动系统带横向振动的计算及图像分析

摘要

为了全面地分析多楔带的横向振动问题,以多楔带传动系统为研究对象,将带段简化成轴向运动粘弹性弦.首先建立带横向振动计算的数学模型,应用Galerkin法将带的时间-空间连续方程离散成为时间和空间函数之积,计算多楔带的横向振动.然后用图像处理的方法对多楔带横向振动参数和轮-带滑移率进行实测分析.将振动模型轴向运动弦线的计算值与图像分析值进行对比,结果表明,当带速较低时,计算值和实验值吻合较好,该计算方法和实验方法对多楔带前端附件系统带横向振动的研究分析具有参考价值.%The lateral vibration of a serpentine belt drive system is studied. First of all, the serpentine belt is simplified as an axially moving viscoelastic string. And the mathematical model for calculating the lateral vibration of the serpentine belt is established. Then, Garlerkin method is applied for discretizing the continuous equation of the belt to calculate the lateral vibration of the serpentine belt. Finally, the image processing method is used to measure and analyze the transverse vibration parameters and the slip rate between the pulley and the belt. The results show that the measurement and calculation data agrees well for low belt speed. The measurement and the optimization methods are useful for calculating and analyzing belt transverse vibration in serpentine belt accessory drive systems.