智能组合秤主振机给料装置模态分析  

Modal Analysis of Feeding Device for Main Vibrator of Intelligent Combination Scale

作　　者：孙菁 黄晓萍 林红艳 李路娜 SUN Jing;HUANG Xiaoping;LIN Hongyan;LI Luna(Nanjing Vocational Institute of Mechatronic Technology,Nanjing 211300,China)

机构地区：[1]南京机电职业技术学院,江苏南京211300

出　　处：《机械制造与自动化》2024年第6期151-154,共4页Machine Building & Automation

摘　　要：介绍主振机的工作原理,设计主振机给料装置的结构,采用SolidWorks进行3D建模,导入ANSYS Workbench软件建立有限元模型;采用四面体网格划分方式并在圆角处进行加密划分;设置全约束的定义方式,采用模态求解器进行模态分析,得到主振机给料装置的结构模型、有限元模型、前5阶固有频率值及各阶振型图。主振机给料装置固有频率从1阶—5阶,呈现稳定上升趋势,其中第3阶固有频率为51.056 Hz,与激振频率接近,处于亚共振状态,因此主振机可利用共振原理保证其振动稳定性;振型主要是绕y轴的转动及沿y轴轴向的上下振动,符合物料输送时的实际工况,证明了此模型建立和激振频率设定的准确性。Introduces the working principle of the main vibrator and designs the structural form of the feeding device of main vibrator.By SolidWorks,the 3D modeling is carried out,and the finite element model is established with ANSYS Workbench software.Tetrahedral mesh is adopted and the rounded corner is divided with encryption,and the definition of full constraint is set.The modal analysis is carried out by using the modal solver,obtaining the structure model,finite element model,natural frequency of the first to fifth orders and the vibration mode diagram of each order.The natural frequency of the feeding device of the main vibrator rises steadily from the first to the fifth order,among which the third natural frequency is 51.056 Hz,which is close to the excitation frequency and in a sub-resonant state.Therefore,the vibration stability of the main vibrator can be ensured by the resonance principle,and the vibration mode is mainly the rotation around y axis and up-down vibration along y axis,which conforms the actual working conditions of material transportation,and proves the accuracy of the model establishment and the excitation frequency setting.

关 键 词：包装机械 智能组合秤 主振机 有限元模型 固有频率 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]