基于虚拟样机技术的打包机举升机构刚柔耦合模型的振动分析  

vibration analysis of rigid-flexible coupled model for stacking lifting mechanism based on virtual technology

作　　者：李佐伟 杨亚楠[1] LI Zuo-wei;YANG Ya-nan(Tianjin Key Laboratory of Photoelectric Detecting Technique and System,Tianjin Polytechnic of Technology,Tianjin 300000,China)

机构地区：[1]天津工业大学天津市光电检测技术与系统重点实验室,天津300000

出　　处：《重型机械》2018年第2期35-39,共5页Heavy Machinery

摘　　要：打包机举升机构的振动特性对机构的整体运行情况有着重要影响,决定了举升机构能否平稳精确地运动到工作指定位置。当打包机举升机构的激振频率与系统固有频率接近时,系统产生会共振。本文在建立了打包机举升机构刚柔耦合模型后,对其分别做自由振动以及受迫振动分析,分析其固有频率与主振型以及频率响应曲线。最终将所得数据用于打包机举升机构的改进方案中。The vibration of stacking lifting mechanism is very important for the overall movement,and it determined whether the lifting mechanism can move smoothly and accurately to the designated work position.When the excitation frequency of stacking lifting mechanism is close to the system natural frequency,the system will resonate.In this paper,after the rigid flexible coupling model of lifting mechanism is established,by making the free vibration and forced vibration analys respectively,analyzed the curves of the natural frequency and the principal mode shape and the frequency response.Finally,the obtained data will be used in the improvement scheme of the stacking lifting mechanism.

关 键 词：打包机举升机构 刚柔耦合模型 自由振动 受迫振动 

分 类 号：TG333.3[金属学及工艺—金属压力加工]