Topology optimization for manufacturability based on the visibility map

ABSTRACTAs a popular and effective tool for structural design, topology optimization has been increasingly used for mechanical part design in recent years. However, the effectiveness of topology optimization in mechanical design has been seriously affected by the poor manufacturability of parts generated. In this study, manufacturability in the topology optimization process is described by using the concept of a visibility map. Apart from additive manufacturing, almost all manufacturing processes can be associated with a visibility map. A part generated by topology optimization must conform to the visibility map of a manufacturing process thus generating optimized design that is manufacturable by the proposed manufacturing process. Since the visibility map concept can be used to describe most manufacturing processes, the proposed approach can be used as a general method for all mechanical part design when topology optimization is needed.

[1]  M. Bendsøe,et al.  Topology Optimization: "Theory, Methods, And Applications" , 2011 .

[2]  Niclas Strömberg.  Topology optimization of structures with manufacturing and unilateral contact constraints by minimizing an adjustable compliance–volume product , 2010 .

[3]  K. Tseng,et al.  An Enhanced Binary Particle Swarm Optimization for Structural Topology Optimization , 2010 .

[4]  Riccardo Poli,et al.  Particle swarm optimization , 1995, Swarm Intelligence.

[5]  P. Hajela,et al.  Genetic algorithms in truss topological optimization , 1995 .

[6]  Ole Sigmund,et al.  A 99 line topology optimization code written in Matlab , 2001 .

[7]  Glaucio H. Paulino,et al.  Topology optimization with manufacturing constraints: A unified projection-based approach , 2016, Adv. Eng. Softw..

[8]  Tony C. Woo,et al.  Visibility maps and spherical algorithms , 1994, Comput. Aided Des..

[9]  Xiaoming Wang,et al.  Color level sets: a multi-phase method for structural topology optimization with multiple materials , 2004 .

[10]  Nikhil Padhye.  Topology optimization of compliant mechanism using multi-objective particle swarm optimization , 2008, GECCO '08.

[11]  James A. Sethian,et al.  Level Set Methods and Fast Marching Methods: Evolving Interfaces in Computational Geometry, Fluid , 2012 .

[12]  Yunqing Zhang,et al.  Manufacturing- and machining-based topology optimization , 2006 .

[13]  Lothar Harzheim,et al.  A review of optimization of cast parts using topology optimization , 2005 .

[14]  Takayuki Yamada,et al.  A topology optimization method based on the level set method incorporating a fictitious interface energy , 2010 .

[15]  Lothar Harzheim,et al.  A review of optimization of cast parts using topology optimization , 2005 .

[16]  Juan Pablo Leiva,et al.  Automobile body reinforcement by finite element optimization , 2004 .

[17]  Yonghua Chen,et al.  Topology optimisation and customisation of a prosthetic knee joint design , 2013, Int. J. Comput. Integr. Manuf..

[18]  Shuo-Yan Chou,et al.  Parting directions for mould and die design , 1993, Comput. Aided Des..

[19]  Lars Krog,et al.  Application of Topology, Sizing and Shape Optimization Methods to Optimal Design of Aircraft Components , 2011 .

[20]  Kuang-Hua Chang,et al.  Integration of design and manufacturing for structural shape optimization , 2001 .