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Research and application of the angular rolling technology for plate mill

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Advances in Manufacturing 2023年第3期11卷 462-476页

作者： Zhi-Jie Jiao Jun-Yi Luo Zhi-Qiang Wang Zhi-Peng Xu chun-yu he Zhong Zhao State Key Laboratory of Rolling and Automation Northeastern UniversityShenyang 110819People's Republic of China

Angular rolling technology can overcome the size limitation of plate mill equipment and product heavy steel plate with large unit weight or improve the production efficiency of small width spreading ratio *** the DEFORM software,the numerical simulation study of the angular rolling process was carried out,and the relation laws of the width,rolling force and strain of the rolled piece under different angular rolling process conditions were *** simulation results show that with the rotation angle increasing,the width of the rolled piece *** with the conventional rolling process,the rolling force changes gradually during the biting and throwing stage of the angular rolling *** the rotation angle increasing,both the equivalent strains in the thickness direction and in the width direction gradually *** to the pattern and dimension's changing formula in the double-pass angular rolling process,the prediction model of angle,reduction and width spreading is *** opening value of side guide is set for the rotation angle *** one 5000 mm heavy plate mill,the automation control system was modified,and the angular rolling technology was applied *** absolute deviation of target width does not exceed±20 mm and the relative deviation does not exceed 1%.The large unit weight plate that cannot be rolled with traditional process,can be produced now,and the annual output increases by 10000 t.

关键词： Plate mill Angular rolling Numerical simulation Width spreading Prediction model Online application

Width Compensation and Correction for the Plan View Pattern Control Function on Plate Mill

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Journal of Harbin Institute of Technology(New Series) 2013年第5期20卷 31-35页

作者： Zhi-Jie Jiao chun-yu he Zhong Zhao Jing-Guo Ding State Key Laboratory of Rolling and Automation Northeastern University

Research works on width compensation and correction were carried out in order to eliminate the effects of the PVPC （ plan view pattern control） on width accuracy of plate mill. The thickness correction calculation formula was derived for compensation the width deviation caused by PVPC function, and the formula is unified under the thinning and thickening conditions. In order to improve the width calculation accuracy, width spread calculation process was modified with dividing one large reduction pass to several small reduction calculation steps. The thickness wedge was simplified to rectangle based on the volume constant principle, and the width spread model for PVPC was constructed. The width compensation and correction for the PVPC functions are used for the online control process, and the Product dimension accuracy is improved. With the decrease of Crop losses, the Droduct yield was increased with 0. 2%.

关键词： Lplate mill plan view pattern control width correction and compensation width spread model

Effect of modified carrier fluoride on the performance of Ni–Mo/Al2O3 catalyst for thioetherification

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Petroleum Science 2020年第3期17卷 849-857页

作者： Zhao Han Zhuang Ma Cheng-Bo Wang chun-yu he Ming Ke Qing-Zhe Jiang Zhao-Zheng Song College of Science China University of PetroleumBeijing 102249China PetroChina Beijing Marketing Company Beijing 100101China

An alumina support was modified by fluorine via impregnation to investigate the effect of fluoride content on the reactivity of Ni–Mo/Al2O3 *** catalyst was characterized by X-ray diffraction,N2 adsorption–desorption(Brunauer–Emmett–Teller)isotherms,temperature-programmed desorption of ammonia,X-ray photoelectron spectroscopy and high-resolution transmission electron *** etherification performance of the catalyst was studied using a fixed-bed *** results show that increasing fluoride content increases the pore volume and pore size but reduces the specific surface *** addition,the degree of sulfidation of Ni first increases and then *** amounts of strong acid and total acid also increase with increasing fluoride *** evaluation of the catalyst reveals that the fluoride content has a minor effect on the thioetherification performance of the catalyst;however,an optimum fluoride content,which was determined to be 0.2%,can ensure lower olefin saturation and an efficient diene selective hydrogenation.

关键词： Fluorine Thioetherification Fluorinated ammonia Selective hydrogenation NiMo/y-Al2O3

Study on the effect of Rhizoma Anemarrhenae on glucose and lipid metabolism in diabetic mice

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TMR Pharmacology Research 2021年第1期1卷 28-34页

作者： Jin-Bao Zhang Peng-Wei Zhuang Qian Wang chun-yu he Yan-Jun Zhang Gansu University of Chinese Medicine Lanzhou 730101China Key Laboratory of Pharmacology and Toxicology of Traditional Chinese Medicine in Gansu Province Lanzhou 730101China Tianjin University of Traditional Chinese Medicine Tianjin 300193China

Objective:To investigate the effect of Rhizoma Anemarrhenae extract on glucose and lipid metabolism in diabetic mice,and provide basis for follow-up ***:The method of streptozotocin combined with high-fat diet was used to replicate the diabetes model in this *** continuous intragastric administration for 6 weeks,the effects of Rhizoma Anemarrhenae extract on body weight,blood sugar,blood lipids,serum insulin and the organ index in diabetic mice were ***:The fasting blood glucose and blood lipids(serum total cholesterol,triglyceride,low density lipoprotein cholesterol levels)of the Rhizoma Anemarrhenae group of mice were significantly decreased,which was statistically significant compared with the model *** area under the curve of the Rhizoma Anemarrhenae group is significantly smaller than that of the model group,and the result is statistically *** Anemarrhenae can increase serum insulin levels in diabetic mice,which is statistically significant compared with the model *** with the model group,the liver,spleen,kidney and pancreas indexes of the Rhizoma Anemarrhenae group are significantly ***:The extract of Rhizoma Anemarrhenae can significantly reduce blood glucose concentration,lower blood lipid levels,promote serum insulin secretion,and protect liver,kidney,spleen,pancreas and other tissues and organs.

关键词： Rhizoma Anemarrhenae Diabetic mice Blood glucose Blood lipids

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越野环境的三维地图重建

南京理工大学学报 2007年第2期31卷 180-183页

作者：于春和刘济林沈阳航空工业学院电子工程系辽宁沈阳110136 浙江大学信息科学与工程学院浙江杭州310027

针对移动机器人越野环境下地图重建的问题,提出了一种三维网格地图的更新算法。该算法利用四线激光雷达(LD_ML)获取环境局部位置信息,结合机器人同一时刻DGPS/INS联合定位系统的位姿,依据障碍的坡度与高度阈值进行障碍区域检测。分别对... 详细信息

针对移动机器人越野环境下地图重建的问题,提出了一种三维网格地图的更新算法。该算法利用四线激光雷达(LD_ML)获取环境局部位置信息,结合机器人同一时刻DGPS/INS联合定位系统的位姿,依据障碍的坡度与高度阈值进行障碍区域检测。分别对障碍与非障碍区域采用最大值和均值法进行更新,完成环境地图的重建。试验结果表明:该算法在越野环境中具有良好的重建效果,可将机器人沿途经过的路面及周围环境构建出来。

关键词：移动机器人四线激光雷达越野环境地图重建

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越野环境下基于四线激光雷达的障碍检测

南京理工大学学报 2006年第5期30卷 618-621,625页

作者：于春和刘济林浙江大学信息学院

为了完成越野环境中无人自主导航车的障碍检测任务,应用四线激光雷达,提出了1种新的障碍检测算法,该算法利用检测区域的坡度信息进行障碍检测,包括坐标变换、候选障碍点提取、候选障碍点聚类及点簇高度求取4个步骤。为了克服激光雷达检... 详细信息

为了完成越野环境中无人自主导航车的障碍检测任务,应用四线激光雷达,提出了1种新的障碍检测算法,该算法利用检测区域的坡度信息进行障碍检测,包括坐标变换、候选障碍点提取、候选障碍点聚类及点簇高度求取4个步骤。为了克服激光雷达检测盲区与抑止测量过程中干扰噪声的影响,运用了卡尔曼滤波算法对目标障碍进行了滤波处理。试验结果表明,障碍检测算法稳定可靠。

关键词：激光雷达越野障碍检测障碍跟踪

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基于多线激光雷达的障碍检测与环境重建

浙江大学学报（工学版） 2006年第6期40卷 1066-1070页

作者：于春和陈国斌刘济林浙江大学信息与电子工程学系

针对越野环境中自主导航车(ALV)的导航问题,提出了基于卡尔曼滤波理论的障碍检测算法.通过分析多线激光雷达的扫描数据,依次进行候选障碍点提取、非障碍扫描点滤除和聚类分割获取障碍信息,使用卡尔曼滤波算法对目标障碍位置进行跟踪和... 详细信息

针对越野环境中自主导航车(ALV)的导航问题,提出了基于卡尔曼滤波理论的障碍检测算法.通过分析多线激光雷达的扫描数据,依次进行候选障碍点提取、非障碍扫描点滤除和聚类分割获取障碍信息,使用卡尔曼滤波算法对目标障碍位置进行跟踪和滤波处理,并结合自主导航车上差分全球定位系统/惯性导航系统(DGPS/INS)的位置和姿态信息进行联合定位,对ALV途经的周围环境进行了三维地图重建.试验结果表明,该算法稳定可靠,跟踪的位置误差可以降低到10 cm以内,有效地解决了越野环境下的障碍检测问题,同时成功地完成了环境场景的重建.

关键词：激光雷达障碍检测地图重建卡尔曼滤波

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复杂环境下基于多层激光雷达的障碍检测

电路与系统学报 2006年第4期11卷 42-46页

作者：于春和刘济林浙江大学信息与通信工程研究所沈阳航空工业学院电子工程系辽宁沈阳110034

为了完成复杂环境中无人自主导航车的障碍检测任务,应用四线激光雷达,提出了一种新的障碍检测算法,该算法利用检测区域的坡度信息进行障碍检测,包括候选障碍点的提取、干扰点的滤除及障碍点的聚类分割三个步骤。为了克服激光雷达检测盲... 详细信息

为了完成复杂环境中无人自主导航车的障碍检测任务,应用四线激光雷达,提出了一种新的障碍检测算法,该算法利用检测区域的坡度信息进行障碍检测,包括候选障碍点的提取、干扰点的滤除及障碍点的聚类分割三个步骤。为了克服激光雷达检测盲区与抑止测量过程中干扰噪声的影响,运用了卡尔曼滤波算法对目标障碍进行了滤波处理。试验结果表明,障碍检测算法稳定可靠。

关键词：激光雷达障碍检测导航卡尔曼滤波

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基于激光雷达的道路边界检测

电子器件 2008年第3期31卷 756-758,762页

作者：于春和沈阳航空工业学院电子工程系沈阳110034

针对室外移动机器人道路分割的问题,本文提出了一种基于激光雷达的道路边界检测算法。算法依据道路区域与非路区域存在一定高度的边界,利用边界是直线形状的特征,运用扩展卡尔曼滤波算法对边界深度数据的进行提取,完成道路边界的检测。... 详细信息

针对室外移动机器人道路分割的问题,本文提出了一种基于激光雷达的道路边界检测算法。算法依据道路区域与非路区域存在一定高度的边界,利用边界是直线形状的特征,运用扩展卡尔曼滤波算法对边界深度数据的进行提取,完成道路边界的检测。试验结果表明,该边界检测算法可靠性强,稳定性高,能够准确完成道路边界检测任务。

关键词：移动机器人激光雷达道路分割边界检测