定模动辊变截面辊弯成形有限元仿真与应用  

Finite Element Simulation and Application of Variable Cross-section Roll Forming with Static Mould and Kinetic Roll

作　　者：陈晓宇 阳振峰 CHEN Xiaoyu;YANG Zhenfeng(School of Mechanical and Material Engineering,North China University of Technology,Beijing 100144)

机构地区：[1]北方工业大学机械与材料工程学院,北京100144

出　　处：《河南科技》2020年第7期41-46,共6页Henan Science and Technology

基　　金：国家自然科学基金“先进高强钢应力适应型构件定模动辊制造装备系统动力学研究”(51775004)。

摘　　要：通过理论分析定模动辊变截面辊弯成形装备结构组成、受力情况和运动过程,构建装备等效简化模型,选用有限元动力学显示算法,通过ABAQUS有限元仿真软件对淬火延性钢QP980五道次变高度定模动辊辊弯成形过程展开仿真分析,获得辊弯成形的基本工艺参数,分析等效应力应变规律以及轧辊成形力与成形力矩的大小及方向变化,提取五道次轧辊成形力矩代入装备机电耦联系统动力学微分方程组进行求解分析,为优化装备提供可靠的性能参数。The equivalent simplified model of the equipment was established by analyzing the structure composition,stress condition and moving process of static mould and kinetic roll equipment.Based on dynamic implicit algorithm,the static mould and kinetic roll process with five variable height part of quenched ductile steel QP980 was conduct ed by FEM software ABAQUS.The basic parameters of roll forming were obtained,the regularities of equivalent stress and equivalent plastic strain were analyzed,the change laws of reacting force and restoring torques of rolls with time were analyzed.The reaction torque of the five rolls were extracted as the value of the forming torque in the dy namic equations of electromechanical coupling system to solve and analysis.The research provides reliable perfor mance parameters for optimizing equipment.

关 键 词：高强钢 定模动辊 变截面辊弯成形 有限元仿真 

分 类 号：TG306[金属学及工艺—金属压力加工]