高速推包机构驱动系统动力学建模与分析  

Dynamic Modeling and Analysis for High-Speed Bag-Pushing Mechanism

作　　者：高建华[1] 胡旭东[1] 

机构地区：[1]浙江理工大学机电研究所,杭州310018

出　　处：《浙江理工大学学报（自然科学版）》2009年第3期370-374,共5页Journal of Zhejiang Sci-Tech University(Natural Sciences)

基　　金：国家863项目(512980106)

摘　　要：为分析自动化码垛系统中推包机构在高速化作业条件下存在的动力学问题,建立了推包单元电机驱动系统的动力学模型,推导获得其振动微分方程,并进行了振动响应分析。研究结果表明,弹性联轴器的使用使得偏心距引起的激振力以及电机工作时产生的激振力对推包机构驱动轴系振动的影响作用明显减弱,从而改善了振动系统的动态特性。研究分析证实弹性联轴器非线性刚度系数和非线性阻尼系数的增加对轴系振幅有较大的抑制作用,而且非线性阻尼系数有比非线性刚度系数更为突出的影响效果。In order to analyze the existing dynamic problem when bag-pushing mechanism of automatic palletizing system works on the high-speed condition, the dynamic model of driving system of bag-pushing unit is established. The differential equations of vibration is deduced and the relative vibratory responses are obtained. Research result shows that flexible coupling can lessen the influence from exciting forces caused by eccentric distance and motor working. Therefore the dynamic performance of vibrating system is improved. Research analysis verifies that increasing damp coefficient and stiffness coefficient of flexible coupling can inhibit vibration greatly and that damp coefficient has a bigger impact than stiffness coefficient does.

关 键 词：推包机构 动力学建模 弹性联轴器 驱动系统 振动响应 

分 类 号：TP278[自动化与计算机技术—检测技术与自动化装置]