Journal
JOURNAL OF BIONIC ENGINEERING
Volume 13, Issue 2, Pages 344-354Publisher
SPRINGER SINGAPORE PTE LTD
DOI: 10.1016/S1672-6529(16)60307-4
Keywords
automated layout design; topology optimization; bionic design; evolutionary algorithm; stiffened container
Funding
- National Natural Science Foundation of China [51405377]
- Hi-Tech Research and Development Program of China [2012AA040701]
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This study proposes a new topology optimization solution providing designers with choices for feasible stiffener layouts inside large-scale containers of garbage trucks. Firstly, the mathematical expressions of loading conditions inside garbage containers are derived. Then, a growth-based layout optimization framework is built, taking inspiration from the morphology of plant ramifications. The principles of the highly effective but individual design rules of existent leaf venation layout problems are explored and transferred into analytical laws. Based on this, an evolutionary algorithm is developed to simulate the load-adapted growth of stiffener layouts, which provides an approximately homogeneous stress distribution along the surface of self-optimizing structures. Unlike the conventional methods, the new approach needs neither the densest ground structure nor the modification of the existing finite element programs, it is fast, easy to apply and nearly constraint free. Finally, a case study is provided showing how a large-scale container structure can be designed by this extremely intelligent CAD approach.
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