Pattern Formation Phenomenon Accompanied by Wear Generated in Rotating Contact Systems and Its Countermeasures

旋转接触系统磨损伴随的花纹形成现象及其对策

基本信息

  • 批准号:
    15360123
  • 负责人:
  • 金额:
    $ 9.15万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
  • 财政年份:
    2003
  • 资助国家:
    日本
  • 起止时间:
    2003 至 2004
  • 项目状态:
    已结题

项目摘要

This investigation deals with the guidance to the initial design of the hot leveler of a steel making machine to prevent the polygonal wear of work rolls, the delay measures of the growth speed of the pattern by changing operating speeds and a countermeasure by using dynamic absorbers. The results obtained are summarized as follows :(1)The modal analysis was applied to the system with time retardation by wear in order to obtain the equations of motion for each mode and some important parameters were derived. The characteristic roots of this system were treated analytically and approximately and the influence of the parameters for pattern formation phenomena was investigated, compared with the exact solutions.(2)The countermeasures by changing the operating speed in a small way were studied by applying numerical simulation. As the results, it was confirmed that the growth speed of the pattern could be delayed by changing two operating speeds alternately. The optimum changing method of t … More he operation speeds was also studied.(3)The authors discussed the optimal design of dynamic absorber mounted on a single degree-of-freedom system where the polygonal wear phenomena are generated. They obtained the characteristic root approximately, and applied the optimal design procedure (optimal tuning, optimal damping) of dynamic absorber for forced vibration of a single degree-of-freedom system to this self-excited vibration system. As the result, they obtained a design in which the system was stabilized perfectly.(4)The result mentioned above was applied to a hot leveler as a two degree-of-freedom system through the modal analysis. As the result of numerical analysis, the hot leveler was changed into a perfectly stable system by two dynamic absorbers for the first and second vibration modes, and the polygonal wear phenomena were not generated at all.(5)The optimal design procedure of the dynamic absorbers for preventing the polygonal wear of work rolls perfectly is very simple and effective and the designer of the hot leveler can use it easily. Less
本文论述了防止工作辊多边形磨损对炼钢机热矫直机初步设计的指导作用、改变工作速度延缓花纹生长速度的措施和采用动力减振器的对策。(1)对磨损时滞系统进行了模态分析,得到了各阶模态的运动方程,并导出了一些重要参数。对该系统的特征根进行了解析和近似处理,并与精确解进行了比较,研究了参数对斑图形成现象的影响。(2)采用数值模拟的方法研究了小幅度改变运行速度的对策。作为结果,证实了图案的生长速度可以通过交替地改变两个操作速度来延迟。最佳更换方法 关于我们 并对手术速度进行了研究。(3)讨论了在单自由度系统中产生多边形磨损的动力吸振器的优化设计问题。他们近似地求出了特征根,并将单自由度系统受迫振动动力吸振器的优化设计方法(最优调谐、最优阻尼)应用于该自激振动系统。结果,他们获得了一个系统稳定的设计。(4)将上述结果应用于热矫直机作为二自由度系统进行模态分析。数值分析结果表明,热矫直机在第一、二阶振型下分别设置两个动力吸振器,使其成为一个完全稳定的系统,不会产生多边形磨损现象。(5)为有效地防止工作辊多边形磨损而建立的动力减振器优化设计方法简单有效,便于设计人员使用。少

项目成果

期刊论文数量(14)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
製鉄機械ホットレベラのワークロールに発生する多角形摩耗 (第2報,レベラの初期設計と運転回転数切替による遅延対策)
炼钢机械热矫直机工作辊发生的多边形磨损(第2部分,矫直机初始设计和切换运行速度延迟对策)
松崎健一郎: "製鉄機械ホットレベラのワークロールに発生する多角形磨耗(第2報,レベラの初期設計と運転回転数切替による遅延対策)"日本機械学会論文集(C編). 69・686. 2525-2532 (2003)
Kenichiro Matsuzaki:“炼钢机械中热矫直机工作辊上发生的多边形磨损(第二次报告,矫直机的初步设计以及通过切换运行速度来防止延迟的对策)”日本机械工程师学会会刊(ed.C)。 69・686。2525-2532(2003)
  • DOI:
  • 发表时间:
  • 期刊:
  • 影响因子:
    0
  • 作者:
  • 通讯作者:
製鉄機械ホットレベラのワークロールに発生する多角形摩耗(第3報,動吸振器を用いた多角形摩耗の防止・遅延対策)
炼钢机械热矫直机工作辊发生的多边形磨损(第3部分,利用动态吸振器防止和延迟多边形磨损的措施)
Polygonal Wear of Work Rolls in a Hot Leveler of Steel Making Machine (3rd Report, A Countermeasure by Using Dynamic Absorbers)
炼钢机热矫直机工作辊的多边形磨损(第三次报告,采用动态吸收器的对策)
Polygonal Wear of Work Rolls in a Hot Leveler of Steel Making Machine (2nd Report, Initial Design of a Leveler and a Countermeasure by Changing Operating Speed)
炼钢机热矫直机工作辊的多边形磨损(第二次报告,矫直机的初步设计及改变运行速度的对策)
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SUEOKA Atsuo其他文献

SUEOKA Atsuo的其他文献

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{{ truncateString('SUEOKA Atsuo', 18)}}的其他基金

Perfect Countermeasure against Pattern Formation Phenomena Generated in Contact Rotating Systems
针对接触旋转系统中产生的图案形成现象的完美对策
  • 批准号:
    18360112
  • 财政年份:
    2006
  • 资助金额:
    $ 9.15万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Pattern Formation Phenomena Generated in Steel Making Machines and Automobiles and Its Countermeasures
炼钢机和汽车中产生的花纹现象及对策
  • 批准号:
    13450093
  • 财政年份:
    2001
  • 资助金额:
    $ 9.15万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Elucidation of Pattern Formation Phenomena Generated in Contact Rotating Systems
接触旋转系统中产生的图案形成现象的阐明
  • 批准号:
    10450092
  • 财政年份:
    1998
  • 资助金额:
    $ 9.15万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
STUDY ON PATTERN FORMATION PHENOMENA IN MECHANICAL ENGINEERING
机械工程中模式形成现象的研究
  • 批准号:
    08455115
  • 财政年份:
    1996
  • 资助金额:
    $ 9.15万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Study on Pattern Formation Phenomena Gernerated in Contact Rotating Systems
接触旋转系统中产生的图案形成现象的研究
  • 批准号:
    06650285
  • 财政年份:
    1994
  • 资助金额:
    $ 9.15万
  • 项目类别:
    Grant-in-Aid for General Scientific Research (C)
Polygonal Deformation of Roll-Covering Visco-Elastic Body in Rolling Contact Systems
滚动接触系统中包覆粘弹性体的多边形变形
  • 批准号:
    04650222
  • 财政年份:
    1992
  • 资助金额:
    $ 9.15万
  • 项目类别:
    Grant-in-Aid for General Scientific Research (C)
Development of Algorithm for Vibration Analysis with High Speed and with High Accuracy
高速高精度振动分析算法的开发
  • 批准号:
    63550190
  • 财政年份:
    1988
  • 资助金额:
    $ 9.15万
  • 项目类别:
    Grant-in-Aid for General Scientific Research (C)

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