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
• 负责人: SUEOKA Atsuo
• 金额: $ 9.9万
• 依托单位: Kyushu University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2006
• 资助国家: 日本
• 起止时间: 2006 至 2007
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-18360112/
• 关键词: Self-excited Vibration; Stability; Modal Analysis; Pattern Formation; Polygonal Wear; Dynamic Absorber; Quenching of Pattern Formation; BTA Cutting; Polonal Wear; 振動制御; 自励振動; パターン形成現象; 接触回転系; 摩耗; 多角形摩耗; 安定性

This investigation deals with a countermeasure by using dynamic absorbers for polygonal wear of work rolls in a hot leveler of steel making machine and proposes the optimal design method of dynamic absorbers. In the case of the actual machine in which the contact rigidity between rolls and plate is comparatively soft, it was shown that the polygonal wear phenomena were all perfectly suppressed by two dynamic absorbers. An experimental equipment of a single degree-of-freedom pattern formation system with a pair of contact rotating rolls and a dynamic absorber are made. According to the results of the experiments without dynamic absorber, it is confirmed that the relation among the natural frequency of the system, the polygonal number and the rotating speed agree with the analytical results qualitatively. According to the results of the experiments using a damped dynamic absorber, the delaying effect of pattern formation is confirmed. Also, a good quantitative agreement between the exper … More imental and analytical results is confirmed. Moreover, it is confirmed that damping of a dynamic absorber is necessary to delay pattern formation phenomena.Next we deals with a countermeasure against pattern formation phenomena generated on film winder using dynamic absorbers. Pattern formation phenomena of the wound sheet sometimes occur in operation because of the viscoelastic characteristics of the film. The pattern formation phenomena lead to a fatal damage on the film. We conducted experiment to generate the pattern formation using experimental apparatus, and theoretically analyzed to clarify the mechanism of the pattern formation phenomena considering the elastic deformation of the rolls. They also theoretically examined the countermeasure to suppress the phenomena by attaching some dynamic absorbers. The effectiveness of the tunable dynamic absorbers was confirmed by the theoretical analysis.The pattern formation phenomena, namely, rifling marks in the BTA deep hole cutting process were treated experimentally and analytically. It was shown that the optimal angles among cutting edge and guides exited and the rifling marks were not generated for the optimally designed BTA. Less

本文研究了利用动态吸振器解决炼钢机热矫直机工作辊多边形磨损的对策，提出了动态吸振器的优化设计方法。在实际辊板接触刚度较软的情况下，两个动态减振器都能很好地抑制多边形磨损现象。制作了一套由一对接触旋转辊和一个动态吸收器组成的单自由度图案形成系统实验装置。根据无动力吸收体的实验结果，证实了系统固有频率、多边形数和转速之间的关系与分析结果定性一致。根据阻尼动力吸收器的实验结果，证实了图案形成的延迟效应。实验结果与分析结果吻合较好。此外，还证实了动态吸收器的阻尼对于延迟图案形成现象是必要的。其次，讨论了利用动态吸光器防止卷绕机上图案形成现象的对策。由于缠绕片的粘弹性特性，在操作中有时会出现缠绕片的图案形成现象。图案形成现象会对薄膜造成致命的损伤。利用实验装置进行了花纹形成实验，并对考虑轧辊弹性变形的花纹形成现象进行了理论分析，阐明了花纹形成的机理。他们还从理论上探讨了通过附加动态吸收剂来抑制这种现象的对策。理论分析证实了可调动态吸波器的有效性。对BTA深孔切削过程中的花纹形成现象即膛线痕迹进行了实验和分析处理。结果表明，优化设计的BTA具有最优的切削刃与导轨夹角，且不会产生膛线痕迹。少

项目成果

摩耗を伴うパターン形成現象の動吸振器による遅延対策

使用动态吸振器来应对因磨损而导致的图案形成延迟的措施

• 发表时间: 2006
• 期刊: Dynamics and Design Conference 2006 CD-ROM論文集 2006
• 作者: 野口聡司;末岡淳男;松崎健一郎;劉孝宏;森田英俊;日高孝平
• 通讯作者: 日高孝平

BTA深穴加工におけるパターン形成現象の解析的解明

BTA深孔钻削中图案形成现象的分析说明

• 发表时间: 2007
• 作者: 森田 亮;他5名
• 通讯作者: 他5名

ゴム巻きロールのパターン形成現象の防止対策

防止包胶辊上形成花纹的措施

• 发表时间: 2007
• 作者: 北村幸嗣;近藤孝広;宗和伸行;森博輝;古賀みず江;宗和 伸行;北村 幸嗣;村元 秀次
• 通讯作者: 村元 秀次

Vibration Phenomena Experimented in a Cold Sweat実学の入り口〜振動現象を足場として

冷汗中实验振动现象实用科学的入口——用振动现象作为脚手架

• 发表时间: 2006
• 作者: 末岡 淳男;他2名
• 通讯作者: 他2名

Polygonal Wear of Work Rolls in a Hot Leveler of Steel Making Machine (4th Report, Experimental Verification of a Countermeasure by Using Dynamic Absorbers)

炼钢机热矫直机工作辊的多边形磨损（第四报告，使用动态吸收器对策的实验验证）

• 发表时间: 2006
• 期刊: Transaction of the JSME, Series C Vol.72,No.724
• 作者: 劉孝宏;Yasuhiro BONKOBARA et al.;RYU Takahiro;Yasuhiro BONKOBARA;Nobuyuki SOWA et al.;松崎健一郎;Nobuyuki SOWA;Kenichiro MATSUZAKI
• 通讯作者: Kenichiro MATSUZAKI