• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>7th Biennial Conference on Engineering Systems Design and Analysis 2004(ESDA 2004) vol.3: Design Engineering; Maintenance Engineering; Manufacturing Engineering; ... >BLANK SHAPE DESIGN BASED ON INVERSE FINITE ELEMENT METHOD USING IDEAL FORMING THEORY AND A MODIFIED KINEMATICS FORMULATION
【24h】

BLANK SHAPE DESIGN BASED ON INVERSE FINITE ELEMENT METHOD USING IDEAL FORMING THEORY AND A MODIFIED KINEMATICS FORMULATION

机译：基于理想成形理论和修正运动学公式的基于有限元反演的空白形状设计

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

For stamping of sheet metals and converting them to specific product shapes without failure, the initial blanks should be correctly designed. Otherwise, final products will not be sound. So initial blank design is a critical step in stamping design procedure. In the present paper for calculating the total deformation gradient and its relation to each step's deformation gradient tensor (F), a modified kinematics formulation will be introduced. This formulation has been used in connection with the ideal forming theory for predicting the initial blank shape of the specified products with defined blank thickness. In the ideal forming theory, each material element is prescribed to deform in a minimum plastic work path and ideal process is obtained when the deformations are most evenly distributed in the final products. The later has been assumed for developing a FEM code to predict the blank shape and size in one step, which has been applied for three different kinds of stampings, cylindrical, square and clover shape cups. The results show the capability of the new algorithm in designing the initial blank shape for stamping products.
机译：为了冲压金属板并将其成功转换成特定的产品形状，应正确设计初始坯料。否则，最终产品将不合格。因此，最初的毛坯设计是冲压设计过程中的关键步骤。在本文中，为了计算总变形梯度及其与每个步骤的变形梯度张量（F）的关系，将介绍一种改进的运动学公式。该配方已与理想的成型理论结合使用，以预测具有定义的毛坯厚度的指定产品的初始毛坯形状。在理想的成形理论中，规定每个材料元素都应在最小的塑性加工路径中变形，并且当变形在最终产品中分布最均匀时，可以获得理想的过程。假定使用后者来开发FEM代码以一步预测坯料的形状和尺寸，该方法已应用于三种不同类型的冲压件（圆柱，方形和三叶草形状的杯子）。结果表明，该新算法具有设计冲压产品初始毛坯形状的能力。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号