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Title: Additively manufacturable micro-mechanical logic gates

Abstract

Early examples of computers were almost exclusively based on mechanical devices. Although electronic computers became dominant in the past 60 years, recent advancements in three-dimensional micro-additive manufacturing technology provide new fabrication techniques for complex microstructures which have rekindled research interest in mechanical computations. Here we propose a new digital mechanical computation approach based on additively-manufacturable micro-mechanical logic gates. The proposed mechanical logic gates (i.e., NOT, AND, OR, NAND, and NOR gates) utilize multi-stable micro-flexures that buckle to perform Boolean computations based purely on mechanical forces and displacements with no electronic components. A key benefit of the proposed approach is that such systems can be additively fabricated as embedded parts of microarchitected metamaterials that are capable of interacting mechanically with their surrounding environment while processing and storing digital data internally without requiring electric power.

Authors:
ORCiD logo [1];  [2];  [1];  [1]; ORCiD logo [2]; ORCiD logo [1]; ORCiD logo [2]
  1. Univ. of California, Los Angeles, CA (United States). Dept. of Mechanical and Aerospace Engineering
  2. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States). Materials Engineering Division
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Univ. of California, Los Angeles, CA (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA); LLNL Laboratory Directed Research and Development (LDRD) Program; US Air Force Office of Scientific Research (AFOSR); National Science Foundation (NSF)
OSTI Identifier:
1497285
Report Number(s):
LLNL-JRNL-751319
Journal ID: ISSN 2041-1723; 937145
Grant/Contract Number:  
AC52-07NA27344; FA9550–15–1–0321; DGE-1650604
Resource Type:
Accepted Manuscript
Journal Name:
Nature Communications
Additional Journal Information:
Journal Volume: 10; Journal ID: ISSN 2041-1723
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; mechanical engineering; sensors

Citation Formats

Song, Yuanping, Panas, Robert M., Chizari, Samira, Shaw, Lucas A., Jackson, Julie A., Hopkins, Jonathan B., and Pascall, Andrew J. Additively manufacturable micro-mechanical logic gates. United States: N. p., 2019. Web. doi:10.1038/s41467-019-08678-0.
Song, Yuanping, Panas, Robert M., Chizari, Samira, Shaw, Lucas A., Jackson, Julie A., Hopkins, Jonathan B., & Pascall, Andrew J. Additively manufacturable micro-mechanical logic gates. United States. doi:https://doi.org/10.1038/s41467-019-08678-0
Song, Yuanping, Panas, Robert M., Chizari, Samira, Shaw, Lucas A., Jackson, Julie A., Hopkins, Jonathan B., and Pascall, Andrew J. Wed . "Additively manufacturable micro-mechanical logic gates". United States. doi:https://doi.org/10.1038/s41467-019-08678-0. https://www.osti.gov/servlets/purl/1497285.
@article{osti_1497285,
title = {Additively manufacturable micro-mechanical logic gates},
author = {Song, Yuanping and Panas, Robert M. and Chizari, Samira and Shaw, Lucas A. and Jackson, Julie A. and Hopkins, Jonathan B. and Pascall, Andrew J.},
abstractNote = {Early examples of computers were almost exclusively based on mechanical devices. Although electronic computers became dominant in the past 60 years, recent advancements in three-dimensional micro-additive manufacturing technology provide new fabrication techniques for complex microstructures which have rekindled research interest in mechanical computations. Here we propose a new digital mechanical computation approach based on additively-manufacturable micro-mechanical logic gates. The proposed mechanical logic gates (i.e., NOT, AND, OR, NAND, and NOR gates) utilize multi-stable micro-flexures that buckle to perform Boolean computations based purely on mechanical forces and displacements with no electronic components. A key benefit of the proposed approach is that such systems can be additively fabricated as embedded parts of microarchitected metamaterials that are capable of interacting mechanically with their surrounding environment while processing and storing digital data internally without requiring electric power.},
doi = {10.1038/s41467-019-08678-0},
journal = {Nature Communications},
number = ,
volume = 10,
place = {United States},
year = {2019},
month = {2}
}

Journal Article:
Free Publicly Available Full Text
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Citation Metrics:
Cited by: 5 works
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Figures / Tables:

Figure 1 Figure 1: Design of bi-stable flexure mechanisms. a Undeformed shape of a bi-stable flexure mechanism with a smallest feature size t= L/30, where L is the length of a bi-stable flexure. b Two buckled shapes of the bi-stable flexure mechanism that are generated using COMSOL Multiphysics® where high-stress regions aremore » indicated by bright colors. c Total deformation energy Ep as a function of the position ds and compression distance h for the bi-stable flexure mechanism in b. d Undeformed shape, first, and second buckling mode shapes and their corresponding critical compression distance h1 and h2 of two different bi-stable flexure mechanism designs. Design A was chosen for this study due to the large distance between 1st and 2nd buckling modes which means the logic gate is more tolerant to errors in the fixturing during precompression« less

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