冶金自动化
冶金自動化
야금자동화
METALLURGICAL INDUSTRY AUTOMATION
2012年
4期
54-56,72
,共4页
冷连轧%弹塑性有限元法%弹性压扁模型%辊形曲线函数%轧制力预设定
冷連軋%彈塑性有限元法%彈性壓扁模型%輥形麯線函數%軋製力預設定
랭련알%탄소성유한원법%탄성압편모형%곤형곡선함수%알제력예설정
cold tandem rolling%elastoplastic FEM%roll elasticrolling force presettingflattening model%roll curve function
在采用弹塑性有限元法模拟五机架四/六辊冷连轧轧制过程的基础上,采用拟合函数法得到轧辊弹性压扁后的辊形曲线函数,据此计算轧辊弹性压扁曲率半径。该模型与常用的Hitchcock公式相比,计算的压扁半径能使轧制力计算值更接近实测值,提高了轧制力的预设定精度。
在採用彈塑性有限元法模擬五機架四/六輥冷連軋軋製過程的基礎上,採用擬閤函數法得到軋輥彈性壓扁後的輥形麯線函數,據此計算軋輥彈性壓扁麯率半徑。該模型與常用的Hitchcock公式相比,計算的壓扁半徑能使軋製力計算值更接近實測值,提高瞭軋製力的預設定精度。
재채용탄소성유한원법모의오궤가사/륙곤랭련알알제과정적기출상,채용의합함수법득도알곤탄성압편후적곤형곡선함수,거차계산알곤탄성압편곡솔반경。해모형여상용적Hitchcock공식상비,계산적압편반경능사알제력계산치경접근실측치,제고료알제력적예설정정도。
On the basis of elastoplastic FEM to simulate the process of 5-stand 4/6 rollers cold tandem mill, the roll elastic flattening curve with quadratic function is obtained by using the fitting function method in the paper. And then the radius of flattening roll curvature is calculated according to the function. Compared with Hitchcock algorithm, the rolling force calculated with our model is closer to the measured rolling force. The study improves the accuracy of rolling force presetting.
