SimuLearn
Fast and Accurate Simulation for the Iterative Design of Topological Morphing Structures
We take mesh-like structures to introduce a simulation technique that combines finite element analysis (FEA) and graph convolutional networks to truthfully (97% accuracy versus FEA) inform design decisions in real-time (0.6 seconds), and deploy our implementation in a computational design tool tasks to unveil the design space enabled by such engine.
H. Yang, K. Qian, H. Liu, Y. Yu, J. Gu, M. McGehee, Y. J. Zhang, and L. Yao.
Aggregated Table Design
The aggregated table stand is an assembly of 2x2 grids using conjoined with a Native American off-loom bead weaving technique. The level of detail and structural overhangs make this design difficult - if not impossible - to fabricate with conventional 3D printing. 60 pairs of units were used in this design to produce a 60 cm tall, 30 cm wide cylindrical tube-like structure. Nonetheless, the aggregation design as an aggregation can be reconfigured to serve different functions by adding or removing units from the assembly. For instance, the table can be repurposed into a chair by removing units to reduce its height - a feature that is unavailable in 4D printing techniques that regard artifacts as continuums
Modular Lamp Shade
This design approximatse a target surface with multiple pieces of 2x2 grids to create a lampshade. In particular, 3D printing technique can not manufacture the target surfaceefficiently and cannot provide with sufficient structural strength. With the accuracy of SimuLearn, we subdivide the lampshade into multiple pieces for fabrication and assemble the modules to form the lampshade after actuation.
Wood Joinery Design
We further employ SimuLearn to hybridize 4D printing with other types of materials. This design consists of three 2x2 grids triggered in sequence to interlock and fasten together a lock miter wood joint. The center piece is first triggered and later assembled into the structure. Then the two side pieces are triggered with the structure to achieve inter-locking.