Projects per year
Abstract
In nature, simple building units can be assembled into complex shapes through long-term time-varying external stimuli that are often spatially nonlinear. In contrast, most artificial methods of externally directed assembly rely on field- or template-based energy minimization. However, methods directing the assembly process by controlling time-varying external stimuli instead of attaining the lowest-energy state remain largely unexplored. In this study, we introduce a method that applies time-varying and spatially nonlinear vibration fields to assemble particles into a desired two-dimensional shape. Our assembly method predicts, controls, and monitors the vibration-induced particle motion to iteratively minimize the difference between the desired shape and the actual particle distribution. We applied our method to a centrally actuated vibrating plate, also known as a Chladni plate, and assembled up to a hundred submillimeter particles into complex recognizable shapes. The method allows programmable formation of shapes beyond the intrinsic limits of periodic patterning of the plate.
Original language | English |
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Article number | 7716 |
Number of pages | 8 |
Journal | Science Advances |
Volume | 7 |
Issue number | 39 |
DOIs | |
Publication status | Published - 22 Sep 2021 |
MoE publication type | A1 Journal article-refereed |
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Dive into the research topics of 'Programmable assembly of particles on a Chladni plate'. Together they form a unique fingerprint.Projects
- 2 Finished
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Autonomous Shaping and Structuring using Acoustic Field
Zhou, Q., Isitman, O., Kopitca, A., Kandemir, M., Kravtcova, A., Yu, J. & Najafi Haeri, S.
01/01/2020 → 31/12/2022
Project: Academy of Finland: Other research funding
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Controlled Dynamic Assembly with Acoustic Excitation
Cenev, Z., Kravtcova, A., Zhou, Q., Latifi, K., Karimi, S., Isitman, O., Kopitca, A., Wijaya, H., Tao, J. & Seon, J.
01/09/2016 → 31/12/2020
Project: Academy of Finland: Other research funding
Equipment
Press / Media
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Researchers Attempt to Replicate Natural Process Involved in Creating Complex Structures
23/09/2021
1 item of Media coverage
Press/Media: Media appearance