基于MBC工具箱的钩尾框辊锻件多目标优化  

Multi-Objective Optimization of Roll Forgings of Coupler Yoke Based on MBC Toolbox

作　　者：周杰[1] 陶亚平[1] 张建生[1] 邵长伟[1] 罗艳[1] 

机构地区：[1]重庆大学材料科学与工程学院,重庆400044

出　　处：《华南理工大学学报（自然科学版）》2015年第11期61-66,共6页Journal of South China University of Technology(Natural Science Edition)

基　　金：国家自然科学基金资助项目(51275543)~~

摘　　要：为研究工艺参数和坯料尺寸对钩尾框成形辊锻件长度、最大辊锻力矩和终锻件填充率的影响,以13B型钩尾框的成形为例,基于Matlab中的MBC工具箱,建立了以坯料长度为局部变量,以轧辊间隙、摩擦因数、坯料温度和轧辊转速为全局变量以及以辊锻件长度、最大辊锻力矩和终锻件填充率为目标函数的数学模型,并进行有限元模拟,最后利用MBC工具箱中的CAGE工具箱对目标函数进行优化,得到了优化组合查阅表和最佳的锻件成形参数组合,即坯料尺寸160 mm×865 mm、轧辊间隙3 mm、摩擦因数0.67、坯料温度1180℃、轧辊转速15 r/min.通过有限元模拟和实际生产验证,证明文中优化方法是可行的,可藉此有效控制精密辊锻件的长度和终锻件的填充率.In order to reveal the impact of both process parameters and blank size on the length of the roll forging of coupler yoke,the maximum torque of roller and the filling rate of coupler yoke forgings,a mathematical model is constructed by taking a 13 B coupler yoke as the research objective and on the basis of the model-based calibration( MBC) in the software Matlab. In this model,the length of blank is set as local variable,roller clearance,friction coefficient,blank temperature and roller speed are set as global variables,and length of roll forgings,maximum torque of roller and filling rate of coupler yoke forgings are set as the objective function. Then,finite element simulation is conducted,and objective function is optimized through the CAGE toolbox in the MBC. Thus,both optimized look-up table and optimal parameter combination of forging forming are obtained,in which the blank size is160 mm × 865 mm with a roller clearance of 3 mm,a friction coefficient of 0. 67,a blank temperature of 1 180 ℃and a roller speed of 15 r / min. Finally,the proposed method is proved to be feasible through the contrast of finite element simulation results and actual production. Therefore,this study offers an effective technology to control the length of precision roll forgings and the filling rate of coupler yoke forgings.

关 键 词：辊锻 1 3 B型钩尾框 MBC工具箱 CAGE工具箱 有限元模拟 多目标优化 

分 类 号：TG316[金属学及工艺—金属压力加工]