Development of Computer-Aided Process Planning System for Plate Bending

板材弯曲计算机辅助工艺规划系统的研制

• 批准号: 04555099
• 负责人: UEDA Yukio
• 金额: $ 6.53万
• 依托单位: Osaka University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Developmental Scientific Research (B)
• 财政年份: 1992
• 资助国家: 日本
• 起止时间: 1992 至 1994
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-04555099/
• 关键词: Plate Bending; Line-Heating; Inherent Deformation; shrinkage; Angular Deformation; Similarity Rule; Heating Condition; Finite Element Method; 相似則; 熱変形; 固有歪; 面内歪と曲げ歪; FEM; 技能の技術化; 技能の継承

The plate bending process is considered as a process to form 3-dimensional shapes by introducing the permanent strain(inherent strain)into a plate through proper means. Thus, an effective plate bending process by line-heating can be achieved when the heating conditions are properly selected to produce desirable bending or inplane deformations. To make such decisions on the heating condition, the relation be tween heating conditions and deformations must be clarified. For this purpose, the similarity rule holds for the line-heating process is studied and two parameters governing the deformation are derived. Also, a new 3-dimensional FEM code is developed as a versatile tool to replace costly experiments. Its validity is examined through a comparison with an experiment and it is applied to study general relations between the parameters and the deformations of plates.Further, a methods to generate the information on where, in which direction and how to heat are studied using the FEM.Two methods, namely step heating method and grillage heating method, are proposed. Their effectiveness are examined through an experiment and numerical simulations.

板弯曲过程被认为是通过适当的手段将永久应变（固有应变）引入板中以形成三维形状的过程。因此，当加热条件被适当地选择以产生期望的弯曲或面内变形时，可以实现通过水火弯板的有效板弯曲过程。为了确定加热条件，必须弄清加热条件与变形之间的关系。为此，相似规则举行水火弯板工艺进行了研究，并推导出两个参数的变形。此外，一个新的三维有限元代码开发作为一个通用的工具，以取代昂贵的实验。通过与实验结果的比较，验证了该方法的有效性，并将其应用于研究板的参数与变形之间的一般关系，进一步研究了用有限元法生成加热位置、方向和方式的方法，提出了分步加热法和格架加热法两种方法。它们的有效性进行了检查，通过实验和数值模拟。

项目成果

Yukio Ueda: "Development of Computer-Aided Process Planning System for Plate Bending by Line-Heating" Naval Architecture & Ocean Engineering. 31. 99-112 (1994)

Yukio Ueda：“通过线加热进行板材弯曲的计算机辅助工艺规划系统的开发”海军建筑

村川 英一: "溶接における熱・力学過程のシミュレーション(技能の可視化)" Proceedings of the Symposium on Supercomputing and Visualization'94, Osaka. 3-9-3-14 (1994)

Eiichi Murakawa：“焊接中的热过程和机械过程的模拟（技能可视化）”超级计算和可视化研讨会论文集94，大阪 3-9-3-14（1994 年）。

上田 幸雄: "高精度組立のための溶接変形シミュレーション(第3報)-板継溶接時の面外変形-" 日本造船学会論文集. 176. 341-350 (1994)

Yukio Ueda：“高精度装配的焊接变形模拟（第三次报告） - 板接头焊接期间的平面外变形 -” 日本造船学会汇刊 176. 341-350 (1994)。

Yasuhisa Okumoto: "Application of CAE to Hull Production" 8th Int.Conf.on Computer Appl.Shipbuilding. 1. 55-67 (1994)

Yasuhisa Okumoto：“CAE 在船体生产中的应用”第 8 届计算机应用造船国际会议。

Yukio Ueda et al.: "Development of Computer-Aided Process Planning System for Plate Bending by Line Heating ( Report 3) -Relation between Heating Condition and Deformation-" Journal of Ship Production. 10. 248-257 (1994)

Yukio Ueda等人：“通过线加热进行板弯曲的计算机辅助工艺规划系统的开发（报告3）-加热条件与变形之间的关系-”船舶生产杂志。