定模动辊机电系统动力学分析  

Electromechanical Dynamics Analysis of Roll-Die Forming Machine

作　　者：阳振峰 李强 管延智 陈晓宇 朱越坤 李傲然 YANG Zhenfeng;LI Qiang;GUAN Yanzhi;CHEN Xiaoyu;ZHU Yuekun;LI Aoran(School of Mechanical and Materials Engineering,North China University of Technology,Beijing 100144;Beijing Research Center of Flexible Roll Forming Engineering,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 [2]北京市变截面辊弯成形工程技术研究中心,北京100144

出　　处：《机械工程学报》2021年第17期163-172,共10页Journal of Mechanical Engineering

基　　金：国家自然科学基金资助项目(51775004)。

摘　　要：动力学分析对定模动辊成形装备的设计具有重要意义。论文基于能量原理,针对驱动电动机、传动机构、模具-轧辊系统与成形高强钢板材组成的机电系统,提出一种包含电磁场、机构驱动力场及高强钢板连续塑性变形过程动态能量场耦合机电系统动力学分析新方法。通过推导系统各部分能量数学表达的理论研究,获得定模动辊机电系统动力学方程。采用有限元法获取定模动辊成形过程中的反力矩,以此作为载荷并用Runge-Kutta法求解系统微分方程,揭示了驱动电动机、传动机构、模具-轧辊系统与先进高强钢板材变形组成的系统运动机理,全方位展示装备动特性规律,求得各轴载荷及电动机驱动力矩等系统性能参数,实现先进高强钢变截面定模动辊成形工况匹配设计与精确运动控制。设计的定模动辊成形机与分析结果进行了可行性实验验证。Dynamic analysis is of great significance to the design of roll-die forming machine.Aiming at the electromechanical system composed of drive motor,drive mechanism,roll-die system and formed high strength steel plate,based on the energy principle,a new dynamic analysis method of electromechanical system including electromagnetic field,driving force field of mechanism and dynamic energy field in continuous plastic deformation process of high strength steel plate is proposed.Through theoretical research,the energy mathematical expression of each part of the system is deduced,and then the electromechanical dynamics equation of the roll-die forming machine is obtained.The counter torque in the process of roll-die forming is extracted by finite element method,and be used to solve the differential equations by Runge Kutta method.The motion mechanism of the system composed of driving motor,driving mechanism,roll-die system and advanced high strength steel sheet deformation is revealed.The system performance parameters such as the load of each axis and the driving torque of the motor are obtained.The servo motion speed and acceleration of each roll show the dynamic characteristics of the equipment in an all-round way,so as to realize the performance design and accurate control for advanced high strength steel variable cross-section roll-die forming machine.The feasibility of the developed roll-die forming machine is verified by the analysis results.

关 键 词：定模动辊 能量原理 机电系统 动力学分析 

分 类 号：TG156[金属学及工艺—热处理]