Design and experimental analysis of control system for metal sheet bending test apparatus

被引：0
|
作者：
Han F. [1 ]
Du J. [1 ]
机构：
[1] School of Mechanical and Materials Engineering, North China University of Technology, Beijing
来源：
Huazhong Keji Daxue Xuebao (Ziran Kexue Ban)/Journal of Huazhong University of Science and Technology (Natural Science Edition) | 2024年 / 52卷 / 06期
关键词：
control system; finite element simulation; fuzzy PID control; mechanical properties; sheet bending deformation;
D O I：
10.13245/j.hust.240625
中图分类号：
学科分类号：
摘要：
Aiming at the problem that the change in mechanical properties of sheet metal could not be accurately characterized accurately by uniaxial tensile test，a control system of sheet metal bending test device based on fuzzy proportional integral differential (PID) was designed．First，the overall design of the control system was given．Then，the electromechanical coupling simulation model of the device was established to ensure the stability of the motion process of the device，and the adaptive control method based on fuzzy PID was proposed to realize the adaptive online tuning of the parameters of PID controller during the working process of the device．Finally，the control platform of sheet metal bending test device was built，and the bending test of ultra-high strength steel DP980 was carried out．Results show that the positioning error of the platform based on the fuzzy PID adaptive control method is ±0.005°，reducing the interference of axial force on the bending process of the plate．The parameters of mechanical properties of ultra-high strength steel DP980 obtained from bending test are obviously different from those obtained from tensile test，and finite element simulation using bending data can better describe the changes in mechanical properties of the plate during bending. © 2024 Huazhong University of Science and Technology. All rights reserved.
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页码：142 / 147
页数：5
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