锻压技术

400 MN钢丝缠绕模锻液压机机架动态性能研究

英文标题：Research on dynamic performance of steel wire wound frame for 400 MN hydraulic mold forging press

作者：何文斌贺绍台都金光侯俊剑王勇

分类号：TG315.4

出版年,卷(期):页码：2019,44(2):112-119

摘要：

运用有限元分析软件ABAQUS对400 MN模锻液压机机架进行模态分析，提取前十阶固有频率和振型，分析了各阶振型产生原因及其形式对液压机性能的影响，研究了机架在不同预紧系数下固有频率变化规律以及剖分坎合结构对液压机的动态性能的影响。研究结果表明，预紧系数在0~0.05之间变化时，机架固有频率随其增大而增大，大于0.05之后，固有频率基本保持恒定，钢丝预紧作用使机架的固有频率提高了7%~35%，该模锻液压机机架的最小固有频率为5.49 Hz远大于其工作时频率，设备工作时不会发生共振现象，而剖分坎合结构不改变液压机机架的固有频率和振幅，对其动态性能无影响。

The modal analysis of frame for 400 MN hydraulic mold forging press was performed by the finite element analysis software ABAQUS, and the first ten order natural frequencies and vibration modes were extracted. Then, the causes of various vibration modes and their effects on the performance of hydraulic press were analyzed, and the change law of the natural frequency of frame under different prestressed factors and the influence of bumpy ridge joining structure on the dynamic performance of hydraulic press were studied. The results show that when the prestressed factor increases from 0 to 0.05, the natural frequency of frame increases, and after it is greater than 0.05, the natural frequency remains basically constant. Furthermore, the prestress effect of steel wire increases the natural frequency of frame by 7% to 35%, and the minimum natural frequency of the hydraulic mold forging press frame is 5.49 Hz, which is much larger than the working frequency, and the equipment does not resonate when it is working. However, the bumpy ridge joining structure cannot change the natural frequency and amplitude and has no effect on the overall dynamic performance of the hydraulic press.

基金项目：

基金项目:河南省自然科学基金资助项目（182300410215）；河南省科技攻关项目(162102210053，172102210547）

作者简介：何文斌（1970-），男，博士，教授 Email：hwb@zzuli.edu.cn 通讯作者：都金光（1984-），男，博士，讲师 Email：dujinguangzzuli@163.com

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