20MN快锻液压机机架动力学分析  

Dynamic Analysis of the Frame of 20MN Quick Forging Hydraulic Press

作　　者：韩玉坤[1] 王立新[1] 刘宏献 李军民[1] 

机构地区：[1]安阳工学院机械系,河南安阳455000 [2]安阳锻压机械工业有限公司,河南安阳455000

出　　处：《锻压装备与制造技术》2010年第4期22-25,共4页China Metalforming Equipment & Manufacturing Technology

基　　金：安阳市2007科技攻关项目(157)

摘　　要：针对快锻液压机锻打工件瞬时的力学行为,采用显式动力学分析程序LS-DYNA进行模拟仿真,得到液压机机架在打击时的应力、应变分布。与通常分析方法比较,发现把液压机打击过程当作一个非线性、动态的碰撞问题来研究,可以得到机架上的应力、变形均小于静力学分析的结果。因而,在机架设计时,对材料的强度要求有所降低,这为液压机的轻量化设计提供了理论依据。Based on the transient mechanics behavior when the quick forging hydraulic press is forging workpieces,by use of LS-DYNA procedure,a simulation has been carried out in order to find the distribution of strain and stress when the hydraulic press is striking the workpiece.Compared with the traditional analysis method, it is discovered that by taking the striking process of the hydraulic press as a nonlinear and dynamic collision problem, the strain and deformation on the hydraulic press frame is smaller than that gained by the statics analysis. So the requirement of the material strength can be reduced, which provides the theory basis for the light-weight design of forging hydraulic press.

关 键 词：机械制造 机架 快锻液压机 强度分析 轻量化 

分 类 号：TG315.4[金属学及工艺—金属压力加工]