Generative Design of Multi-Material Hierarchical Structures via Concurrent Multi-Scale Topology Optimization & Conformal Geometry Method

• The multiple material phases are modeled via the ‘color level set’ representation.
• The overall structure topology and multiple constructing material properties are determined simultaneously in the CBF-based parametric level set framework.
• The final structure is assembled by the multi-control-point conformal mapping.
• Thickness-variable structures can be introduced to help preserve the designed structural performance.

The ‘Color Level Set’ Multimaterial Representation

The Flow Chart of the Entire Optimization and Mapping

The Design Boundary Conditions:

The Optimization Convergence History of the MBB Beam Structure

The Metamaterials with the Optimal Effective Properties

The Region-be-region Multi-control-point Conformal Mapping (R-MCM)

The Corresponding Thickness Value and the CAD Model of the MBB Beam

The All-in-one Multi-control-point Conformal Mapping (A-MCM)

The Corresponding Thickness Value and the CAD Model of the MBB Beam

The 3D Printed MBB Beam

Representative publications:

Conference:

Long Jiang, Shikui Chen and Xianfeng David Gu. "Generative Design of Multi-Material Hierarchical Structures via Concurrent Multi-Scale Topology Optimization & Conformal Geometry Method." ASME Proceedings of IDETC/CIE, August 18-21, 2019, Anaheim , CA.

Journal:

Long Jiang, Xianfeng David Gu, Shikui Chen, "“Generative Design of Bionic Structures via Concurrent Multiscale Topology Optimization & Conformal Geometry Method ", ASME Journal of Mechanical Design.