Indiana University-Purdue University Indianapolis

IUPUI School of Engineering and Technology

Honda Project

Honda

  • Topology Crash Optimization of Progressively Buckling Thin-walled Structures

  • Honda R&D Americas and Indiana University-Purdue University Indianapolis (IUPUI) have developed a computational design algorithm for tailoring the deformation of thin-walled structures. This design algorithm is part of a general toolkit referred to as topology crash optimization (TCO) that comprises topology (material distribution), topography (shape), and topometry (thickness) optimization methods—topometry optimization is of particular interest for the design of thin-walled structures. TCO methods on tubular structures rely on the ability of a compliant mechanism to transfer displacement and/or force from an input to desired output port locations. The output port response triggers progressive folding mitigating the natural Euler-type buckling effect. Biologically inspired hybrid cellular automaton (HCA) method is used to drive the design process by uniformly distributing mutual potential energy (MPE) using a control strategy. The result is a conceptual, non-intuitive design that promotes progressive folding.

Publications

  • Bandi, P., D. Detwiler, J. Schmiedeler, and A. Tovar. Design of Progressively Folding Thin-Walled Tubular Components Using Compliant Mechanism Synthesis. Submitted to Thin-Walled Structures in March 2014.
  • Liu, K., A. Tovar, and D. Detwiler, Thin-walled component design optimization for crashworthiness using principles of compliant mechanism synthesis and Kriging sequential approximation. In Proceedings of the 4th International Conference on Engineering Optimization (EngOpt 2014), Lisbon, Portugal, September 8-11, 2014.
  • Shinde, S., P. Bandi, D. Detwiler, and A. Tovar. Structural Optimization of Thin-Walled Tubular Structures for Progressive Buckling Using Compliant Mechanism Approach. SAE International Journal of Passenger Cars – Mechanical Systems, Vol. 6, Issue 1, Pages: 109-120, 2013.
  • Shinde, S., D. Detwiler, and A. Tovar. Optimization of Crashworthy Thin Walled Tubular Structures by Intelligent Tailoring of Mechanical Properties Using a Compliant Mechanism Approach. In Proceedings of the 10th World Congress on Structural and Multidisciplinary Optimization (WSCMO-10), Orlando, Florida, USA, May 19-24, 2013.
  • Shinde, S., P. Bandi, D. Detwiler, and A. Tovar. Structural Optimization of Thin-Walled Tubular Structures for Progressive Buckling using Compliant Mechanism Approach. In Proceedings of the SAE 2013 World Congress. Detroit, Michigan, USA, April 16-18, 2013.