期刊文献+

Backward tracing simulation of precision forging process for blade based on 3D FEM 被引量:5

Backward tracing simulation of precision forging process for blade based on 3D FEM
下载PDF
导出
摘要 In order to obtain the desired final shape, the blade precision forging requires a reasonable preformed billet which can be obtained from a given final shape by using backward tracing scheme based on FEM. The key technologies of backward tracing scheme based on 3D rigid-viscoplastic FEM were explored, and some valid algorithms or methods were proposed. A velocity field was generated by combining the direct iterative method with Newton-Raphson iterative method, and then the initial velocity field of backward tracing simulation was achieved by reversing the direction of the velocity field. A new method, namely the tracking-fitting-revising method, was proposed and can be used to determinate the criterion of separating a node from die in the backward tracing simulation. The ceasing criterion of the backward tracing simulation is that all the boundary nodes are detached from dies. Based on the above key technologies, the 3D backward tracing simulation system for the blade precision forging was developed, and its feasibility and reliability were verified by forward loading simulation. In order to obtain the desired final shape, the blade precision forging requires a reasonable preformed billet which can be obtained from a given final shape by using backward tracing scheme based on FEM. The key technologies of backward tracing scheme based on 3D rigid-viscoplastic FEM were explored, and some valid algorithms or methods were proposed. A velocity field was generated by combining the direct iterative method with Newton-Raphson iterative method, and then the initial velocity field of backward tracing simulation was achieved by reversing the direction of the velocity field. A new method, namely the tracking-fitting-revising method, was proposed and can be used to determinate the criterion of separating a node from die in the backward tracing simulation. The ceasing criterion of the backward tracing simulation is that all the boundary nodes are detached from dies. Based on the above key technologies, the 3D backward tracing simulation system for the blade precision forging was developed, and its feasibility and reliability were verified by forward loading simulation.
出处 《中国有色金属学会会刊:英文版》 CSCD 2006年第B02期639-644,共6页 Transactions of Nonferrous Metals Society of China
基金 Project(50225518) supported by the National Science Foundation of China for Distinguished Young Scholars Project(02H53061) supported by the Aeronautical Science Foundation of China Project(05-1) supported by the Foundation of State Key Laboratory of Plastic Forming Simulation and Mould Technology
关键词 航空发动机叶片 精密锻造过程 三维FEM模型 反向跟踪模拟 blade precision forging preform design backward tracing scheme FEM
  • 相关文献

参考文献3

二级参考文献9

  • 1高涛,刘郁丽,杨合,王鹏.塑性成形过程反向模拟技术的研究现状与发展趋势[J].机械科学与技术,2004,23(10):1219-1222. 被引量:5
  • 2S.Kobayashi.Approximate solutions for perform design in shell nosing[J].Int.J.Mach.Tool Des.Res.1983,23(2-3):111-122.
  • 3S.M.Hwang,S.Kobayashi.Perform design in disk forging[J].Int.J.Mach.Tool Des.Res.1986,26(3):231-243.
  • 4C.S.Han,R.V.Grandhi,R.Srinivasan.Optimum design of forging die shape using nonlinear finite element Method[J].AIAA Journal,1993,31(4):774-781.
  • 5G.Zhao,E.Wright,R.V.Grandhi.Computer aided preform designin forging using the inverse die contact tracking method[J].Int.J.Mach.Tools Manufact.,1996,36(7):755-769.
  • 6Guoqun Zhao,ED Wright,R.V.Grandhi.Forging preform design with shapecomplexity control in simulation backward deformation.Int.J.Mach.Tools Manufact.,1995,35(9):1225-1239.
  • 7Guoqun Zhao,Zhenduo Zhao,Tonghai Wang et al.Preform design of a generic turbine disk forging process[J].J.Mater.Proc.Technol.1998,84:193-210.
  • 8Guoqun Zhao,Guangchun Wang,Ramana V.Grandhi.Die cavity design of near flashless forging process using FEM-based backward simulation[J].J.Mater.Proc.Technol.,2002,121:173-181.
  • 9赵国群,贾玉玺,王广春,赵振铎.基于有限元逆向模拟技术的预成形模具设计[J].机械工程学报,2000,36(2):65-68. 被引量:6

共引文献2

同被引文献57

引证文献5

二级引证文献83

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部