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Determination of Optimal Work Roll Profile for Cold Strip Mill

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Journal of Iron and Steel Research International 1998年第1期5卷 8-12页

作者： Wang Hongxu lian jiachuang Liu Hongmin Yanshan University

The model of predicting distribution of strip thickness at the exit and tension stress is established by using weighted residual method and variational method with consideration of rolled metal lateral flow.A New method of calculating loaded roll gap in relation to target tension stress is *** minimum square summation of loaded roll gap deviation is used as an objective function for the first time to optimize initial work roll profile.

关键词： work roll profile cold rolling optimization weighted residual method variational method strip

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NUMERICAL SIMULATION FOR SHAPE OF COLD ROLLING ALUMINUM STRIP ON 4-HIGH MILL WITH ROLL SHIFTED

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中国有色金属学会会刊：英文版 1998年第3期8卷 30-36页

作者： Hongxu, Wang Jianjun, Liu jiachuang, lian Junbo, Liu Yanshan Univ Qinhuangdao China

１ＩＮＴＲＯＤＵＣＴＩＯＮＡｓｔｈｅｍｉｌｗｉｔｈｒｏｌｓｈｉｆｔｅｄｈａｓｇｏｏｄｓｈａｐｅｃｏｎｔｒｏｌｃｈａｒａｃｔｅｒｉｓｔｉｃ，ｉｔｈａｓｂｅｅｎａｐｐｌｉｅｄｔｏｐｒｏｄｕｃｔｉｏｎｏｆｃｏｌｄｒｏｌ... 详细信息

１ＩＮＴＲＯＤＵＣＴＩＯＮＡｓｔｈｅｍｉｌｗｉｔｈｒｏｌｓｈｉｆｔｅｄｈａｓｇｏｏｄｓｈａｐｅｃｏｎｔｒｏｌｃｈａｒａｃｔｅｒｉｓｔｉｃ，ｉｔｈａｓｂｅｅｎａｐｐｌｉｅｄｔｏｐｒｏｄｕｃｔｉｏｎｏｆｃｏｌｄｒｏｌｅｄａｎｄｈｏｔｒｏｌｅｄｓｔｒｉ...

关键词： mill with roll shifted least square and collocation method variation method shape

DEVELOPMENT OF DC MILL——WITH WORK ROLLS DEVIATED AND CROSSED

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Chinese Journal of Mechanical Engineering 1998年第4期11卷 47-52页

作者： Liu Yuli Jin Xiaoguang lian jiachuang Kong Xiangdong (Yanshan University) Yanshan Univ China

A new type of 4 high strip mill is developed, in which gauge and shape are combinatively controlled by work roll deviating and crossing. The neewly developed 300 mm 4 h mill and its control system are introduced. Both static and dynamic experiments as well as theoretical study are carried out to verify the advantages and the combined shape and gauge control function of this new mill.

关键词： DC mill Shape Control

STUDY OF THE 3-DIMENSIONAL STRESSES OF COLD STRIP ROLLING UNDER CENTRE WAVE

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Chinese Journal of Mechanical Engineering 1994年第2期7卷 91-96页

作者： Liu Hongmin Bian Yuhong lian jiachuang(Yanshan University)

On the conditions ofthe width to thickness ratio 625 and the centre wave the 3-dimensional stresses distributions of cold strip rolling are studied by using the third power spline function finite strip method. The computed results of the rolling pressure, the 2-directional friction stresses and the front and back tension stresses agree with the experimental results well. In this paper, the frictional stresses of stagnation zone are computed by using preliminary displacement principle and the computing precision is improved.

关键词： Cold strip rolling Stress Shape

NUMERICAL SIMULATION ON ALUMINIUM SHEET ROLLING

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Chinese Journal of Mechanical Engineering 1994年第1期7卷 11-16页

作者： Du Fengshan Liu Cai lian jiachuang Yanshan University

The aluminium sheet rolling is studied by using three dimensional elastic-plastic finite element method (FEM) based on considering both material and geometric non *** dimensional distribution of the stress and deformation are given on the VAX11 / 780 computer. The spread deformaton of the workpiece is analyzed by means of the moire *** calculation results are compared with experimental results of the moire and agreement is well.

关键词： FEM Rolling Moire method

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并串联复合机器人的鲁棒控制

机械工程学报 2006年第9期42卷 229-232页

作者：周兵许艳湖南大学机械与汽车工程学院长沙410082

针对并联机构具有较高的刚度和精度,但工作空间小的特点,提出一种由3自由度平动并联机构和放大机构相结合的机构,从而组成新型并串联复合机器人。根据拉格朗日方法,建立并串联复合机器人的动力学方程, 并讨论动力学方程的性质。研究并... 详细信息

针对并联机构具有较高的刚度和精度,但工作空间小的特点,提出一种由3自由度平动并联机构和放大机构相结合的机构,从而组成新型并串联复合机器人。根据拉格朗日方法,建立并串联复合机器人的动力学方程, 并讨论动力学方程的性质。研究并串联复合机器人的鲁棒控制问题,根据动力学的性质在笛卡儿坐标系中设计一种鲁棒控制策略。控制器由两部分组成:一部分为基于标称模型设计的计算力矩控制器,其作用是镇定标称的机器人系统;另一部分为一种基于Lyapunov方法设计的鲁棒控制器,其作用是消除不确定性对跟踪性能的影响。理论分析与仿真结果表明,该控制器对改善并串联复合机器人的轨迹跟踪精度十分有效。

关键词：并串联复合机器人鲁棒控制 Lyapunov方法

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