研究含有单向离合器以及张紧轮的轮-带传动系统的稳定稳态周期响应。建立含有单向离合装置的,由主、从动轮、张紧轮、张紧器以及多楔带组成的三轮带动力学模型。该模型中,滑轮和附件轴间通过单向离合器传递扭矩。考虑带的轴向弹性刚度以及各轮轴处阻尼的作用,建立三轮耦合、分段连续的控制方程。采用谐波平衡法分析轮带系统在简谐激励下的耦合非线性振动的稳定稳态响应。通过比较有无单向离合装置的系统稳定稳态幅频响应曲线,研究单向离合装置对轮带传动系统非线性动态特性的影响。并运用Runge—Kutta方法直接数值求解系统的时间历程,进而对比验证基于谐波平衡法得到的稳态响应分析结果。
The steady-state periodic response of pulley belt system with a one-way clutch and a tension pulley is studied. A dy namic model for a three pulley-belt accessory drive system with a one way clutch, a driving pulley, a driven pulley, a transla- ting belt, a tension air, a tension pulley and accessory systems, are established. In the model, the driven pulley and the acces- sory system are coupled by the one way clutch. The effect of the axial stiffness of the belts and the damping of the pulleys are considered to establish the piece-wise continuous equations which are coupled by three pulleys. The steady-state responses of the coupled vibration of the belt drive system are investigated by the numerical harmonic balance method. Besides, the effects of the one-way clutch on the power system are studied by comparing the frequency response curve of the translating belt with and without one-way clutch device. The time histories of the belt drive system are investigated by the Runge-Kutta algorithm. Furthermore, the steady state responses based on the harmonic balance method are confirmed.