Sheet metal plate design: a structured approach to product optimization in the presence of technological constraints

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• 作者：Lorenzo Fusano (1) lorenzo.fusano@polito.it
  Paolo Claudio Priarone (2)
  Massimiliano Avalle (3)
  Augusto Mario De Filippi (2)
• 关键词：Plate optimization – ; Rib pattern – ; Sheet metal working
• 刊名：The International Journal of Advanced Manufacturing Technology
• 出版年：2011
• 出版时间：September 2011
• 年：2011
• 卷：56
• 期：1-4
• 页码：31-45
• 全文大小：1.4 MB
• 参考文献：1. Yang RJ, Chen CJ, Lee CH (1996) Bead pattern optimization. Struct Optim 12:217–221
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  3. Chung J, Lee K (1997) Optimal design of rib structures using the topology optimization technique. Proc Inst Mech Eng Part C J Mech Eng Sci 211:425–437
  4. Luo JH, Gea HC (1998) Optimal bead orientation of 3D shell/plate structures. Finite Elem Anal Des 31:55–71
  5. D铆az AR, Lipton R, Soto CA (1995) A new formulation of the problem of optimum reinforcement of Reissner–Mindlin plates. Comput Meth Appl Mech Eng 123:121–139
  6. Lam YC, Santhikumar S (2003) Automated rib location and optimization for plate structures. Struct Multidiscipl Optim 25:35–45
  7. Park MY, Park Y, Park YS (2007) Raising natural frequencies of a structure via surface-grooving technique. Struct Multidiscipl Optim 34:491–505
• 作者单位：1. University Centre of Alessandria, Politecnico di Torino, viale Teresa Michel 5, 15121 Alessandria, Italy2. Department of Production Systems and Business Economics, Politecnico di Torino, corso Duca degli Abruzzi 24, 10129 Turin, Italy3. Department of Mechanics, Politecnico di Torino, corso Duca degli Abruzzi 24, 10129 Turin, Italy4. Department of Production Systems and Business Economics, Politecnico di Torino, corso Duca degli Abruzzi 24, 10129 Turin, Italy
• 刊物类别：Engineering
• 刊物主题：Industrial and Production Engineering
  Production and Logistics
  Mechanical Engineering
  Computer-Aided Engineering and Design
  
• 出版者：Springer London
• ISSN：1433-3015

文摘

Geometrical optimization of structural components is a topic of high interest for engineers involved with design activities mainly related to mass reduction. The study described in these pages focuses on the optimization of plates subjected to bending for which stiffness is obtained by a pattern of ribs. Although stiffening by means of ribs is a well-known and old technique, the design of ribs for maximum stiffness is often based on practice and experience. Classical optimization methods such as topological, topographical and parametric optimization fail to give an efficient design with a reasonable programming effort, especially when dealing with many and complex constraints. These constraints are both technical and technological. A most promising technique to obtain optimal rib patterns was to define a set of feasible rib trajectories and then to select the subset with the most efficient combinations. The result is not unique and a method to select the optimal patterns is required. In fact, the stiffening effect increases with increasing rib length, but at a greater cost. A trade-off must be found between structural performance and cost: The tools to guide this selection process is the main objective of the paper, with particular attention in evaluating the stiffening due to the presence of beads on the plate with a close link with the production system and possible technological constraints which can occur during manufacturing processes, such as minimum rib distance or the presence of discontinuities or the presence of holes or other elements on the plate. A special tool with enforced rib cross section is considered, and optimal rib deployment has to be found. Numerical examples attached show the methodology and obtainable results.