砌块成型机机架的模态分析与结构优化  

Modal Analysis and Structural Optimization of Block Forming Machine Frame

作　　者：王野平[1] 李杭 朱凤[2] Wang Yeping;Li Hang;Zhu Feng

机构地区：[1]同济大学机械与能源工程学院,上海201804 [2]苏州伍得人造板设备有限公司,江苏苏州215100

出　　处：《机械制造》2019年第9期28-31,38,共5页Machinery

摘　　要：介绍了模态分析的基本理论,并对砌块成型机机架进行了模态分析,得到机架前十阶模态频率和前两阶振型。在此基础上,对砌块成型机机架结构进行改进,并对改进后的机架进行模态分析,得到机架前十阶模态频率和前三阶振型。由于砌块成型机机架前三阶模态频率仍然处于电动机激振频率范围内,因此应用ANSYS软件对机架结构进行进一步优化。分析了结构优化的过程和结果,确认对结构进行进一步优化后,砌块成型机机架模态频率已超出电动机激振频率范围,能够避免机架与电动机产生共振。The basic theory of modal analysis was introduced, the modal analysis of the block forming machine frame was carried out, and the first ten-order modal frequency and the first two-order vibration mode were obtained. On this basis, the frame structure of the block forming machine was improved with modal analysis of the improved frame to obtain the first ten-order modal frequency and the first three-order vibration mode of the frame. Since the first three-order modal frequency of the block forming machine frame was still within the motor exciting frequency range, the ANSYS software was used for further optimization of the frame structure. The process and results of structural optimization were analyzed. It is confirmed that after further optimization of the structure, the modal frequency of the block forming machine frame has exceeded the excitation frequency range of the motor, which can avoid resonance between the frame and the motor.

关 键 词：砌块成型机 机架 模态 优化 

分 类 号：TH122[机械工程—机械设计及理论]