基于等效中性层模型的辊弯回弹量预测及补偿控制研究  

Research on Prediction and Compensation Control of Roll Bending Springback Based on Equivalent Neutral Layer Model

作　　者：赵嘉媛[1] 陈昉[1] 刘纯国[2] ZHAO Jiayuan;CHEN Fang;LIU Chunguo(College of Mechanical and Electrical Engineering,Hubei Three Gorges Vocational and Technical College,Yichang 443000,China;College of Materials Science and Engineering,Jilin University,Changchun 130025,China)

机构地区：[1]湖北三峡职业技术学院机电工程学院,湖北宜昌443000 [2]吉林大学材料学院,长春130025

出　　处：《计算机测量与控制》2025年第3期124-130,共7页Computer Measurement &Control

基　　金：2022年度湖北省教育厅科学研究计划指导性项目(B20222565)。

摘　　要：以6005A铝合金型材为研究对象,提出了一种考虑中性层偏移的铝合金型材辊弯回弹预测及补偿控制方法;分别采用考虑中性层偏移的等效中性层预测模型和忽略中性层偏移以及型材截面形状的经验模型对铝合金型材辊弯回弹进行理论分析,提出基于预测回弹量的铝合金型材补偿控制策略,实现对铝合金型材辊弯的精准控制;将回弹理论分析结果与有限元模拟结果以及实测结果进行对比分析;结果表明,相对于忽略中性层偏移和截面形状影响的经验模型,考虑中性层偏移的预测模型能更准确地预测型材的回弹量,在相同的成形半径下,回弹预测的最大误差可以由10.37%减小到3.96%。Taking 6005A aluminum alloy profiles as the research object,an aluminum alloy profile roll bending springback prediction and compensation control method considering the neutral layer offset is proposed.An equivalent neutral layer prediction model considering the neutral layer offset and an empirical model ignoring the neutral layer offset as well as the profile cross-section shape are respectively used to theoretically analyze the roll bending springback of the aluminum alloy profile,and an aluminum alloy profile compensation control strategy based on the predicted springback is proposed,which achieves accurate control of aluminum alloy profile roll bending.Compared with finite element simulation and measured results,theoretical analysis results of springback show that for the empirical model that ignores the effects of neutral layer offset and cross-section shape,the prediction model that considers the neutral layer offset can more accurately predict the springback of profile,and the maximum error of springback prediction can be reduced from 10.37%to 3.96%under the same forming radius.

关 键 词：型材辊弯 回弹预测 等效中性层 6005A铝合金 补偿控制 

分 类 号：X937[环境科学与工程—安全科学]