快锻压机不同泄压时间下油缸的有限元动力学分析  

The Finite Element Dynamic Analysis of The Hydraulic Cylinder for Fast Forging Hydraulic Press in Different Pressure Relief Time

作　　者：武永红[1] 李永堂[1] 刘志齐[1] 张亦工[2] 

机构地区：[1]太原科技大学,山西太原030024 [2]太重集团技术中心,山西太原030024

出　　处：《液压气动与密封》2012年第11期15-18,共4页Hydraulics Pneumatics & Seals

摘　　要：针对80MN快锻压机快锻时载荷大、频率高、冲击振动大的特点,为减小压机高频重载下的冲击振动,提高油缸的使用寿命,本文在分析压机系统泄压时间最小基础上,利用ANSYS软件通过比较不同泄压时间下侧缸应力应变时间历程曲线,分析了泄压时间对压机侧缸的动力学影响,同时通过应力应变云图,得到了侧缸应力集中、变形最大的主要部位,分析结果对压机系统设计具有一定理论和实际意义。For the characteristics of 80MN fast forging hydraulic machine system with big load, high frequency, large impact vibration, in order to reduce the heavy impact vibration of the Forging Machine and improve the service life of the cylinder, the dynamic effects of relief time on the side cylinder are analyzed by using the ANSYS software and comparing the stress-strain time curve of the different relief time based on the analysis of the forging machine system relief time minimum. The main parts of the side cylinder stress concentration and the maximum deformation are obtained through stress-strain chart. The results of analysis has a certain theoretical and practical significance for forging machine system design.

关 键 词：快锻油压机 侧缸 泄压时间 冲击振动 有限元 应力 应变 

分 类 号：TH137.51[机械工程—机械制造及自动化]