摘要
为了理解具有单向离合器的带传动装置的性能动力学,把一标准的三个带轮的蛇形带传动和带弯曲刚度延伸到包含一单向离合器,该离合器的模拟是以从动带轮和其附件的相对速度为基础。该离合器锁上(接合)带轮和其附件零相对速度产生正的内离合器转矩,离合器脱开离合器转矩为零,允许两部件速度不均匀,该模型导出一分段线性系统。转换矩阵用来计算两线性结构在不连续时间序列内的系统响应,节约了大量的计算时间。对不同的激振频率带轮和附件的惯量比以及外部负载检查系统的动力学,其中包括响应和张力降低。因为离合器的单向传动,振动变化的研究在实际中提供了设计准则。
A prototypieal three-pulley serpentine belt drive with belt bending stiffness is extended to include a one-way clutch in order to understand the non-linear dynamics of the system with the one-way clutch per- formance. The clutch is modelled based on the relative velocity of the driven pulley and its accessory. The clutch locks（engages） the pulley and accessory for zero relative velocity and produces a positive inner clutch torque. Zero clutch torque initiates clutch disengagement, allowing unequal velocities of the two compo- nents. This model leads to a piece-wise linear system. The transition matrix is used to evaluate the system response in discrete time series for the two linear configurations, saving significant computational time. The system dynamics including response and dynamic tension drop are examined for varying excitation frequen- cies, inertia ratio of the pulley and accessory, and external load. The investigation of vibration reduction because of the sin~：le-direeti^n
出处
《传动技术》
2012年第2期34-38,共5页
Drive System Technique
