A physics-informed neural network for Kresling origami structures

International Journal of Mechanical Sciences, Journal Year: 2024, Volume and Issue: 269, P. 109080 - 109080

Published: Feb. 4, 2024

Language: Английский

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Design optimization of the bamboo-inspired foam-filled tube for high-speed train collision energy absorption

International Journal of Mechanical Sciences, Journal Year: 2024, Volume and Issue: 271, P. 109128 - 109128

Published: Feb. 23, 2024

Language: Английский

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Energy absorption of graded thin-walled origami tubes

International Journal of Mechanical Sciences, Journal Year: 2024, Volume and Issue: 282, P. 109609 - 109609

Published: July 29, 2024

Introducing origami with outstanding flexibility into thin-walled tubes can enhance their energy absorption performance. This paper first proposes a cutting and folding-based design route of which enables geometry gradients such as uniform, tapered, hourglass-shaped, ellipsoidal shapes. Subsequently, the finite element model proposed tube is established verified through comparisons experimental results. Numerical simulation results demonstrate that quasi-static capability graded closely related to folding angle, total number layers, Compared conventional octagonal (COT), initial peak force in experiences dramatic reduction, reaching maximum decrement 70.75%, while achieving 39.96% boost specific (SEA). Moreover, incorporation gradient shapes within facilitates more predictable controlled collapse pattern, leading an enhanced energy-absorbing efficiency than uniform tubes. study provides new insights balance shape.

Language: Английский

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Energy absorption performance of Kresling origami tubes under impact loading

International Journal of Mechanical Sciences, Journal Year: 2024, Volume and Issue: 282, P. 109682 - 109682

Published: Aug. 29, 2024

Language: Английский

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Bayesian optimization of origami multi-cell tubes for energy absorption considering mixed categorical-continuous variables

Thin-Walled Structures, Journal Year: 2024, Volume and Issue: 199, P. 111799 - 111799

Published: March 27, 2024

Multi-cell structures have been widely utilized in energy-absorbing applications for their lightweight and superior mechanical properties. However, they may produce high peak forces that are harmful to occupant safety during a vehicle collision. In addition, the naturally formed folding global bending modes under axial loads can significantly restrict capability. this study, novel origami multi-cell structure is proposed avoid excessive at same time guide deformation mode improve Four cross-sectional types of investigated experimentally numerically. The results indicated web-to-web (W2W) type most promising energy absorption, while web-to-corner (W2C) yield low excellent our study cases. To further exploit potential these structures, multi-objective optimization required consider conflicting objectives maximizing capability minimizing force. it challenging traditional deal with continuous, integer, categorical variables simultaneously. Therefore, Bayesian method based on Hamming distance handle mixed categorical-continuous optimize tubes. optimal W2C decrease force by 30% keeping similar level specific compared W2C. Moreover, absorption 40% baseline design.

Language: Английский

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Mountain-valley crease reconfiguration of 4-crease origami vertices and tessellations

International Journal of Mechanical Sciences, Journal Year: 2024, Volume and Issue: 273, P. 109224 - 109224

Published: March 25, 2024

Language: Английский

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Optimization design of multi-stable metamaterial origami mechanism (MSMOM) based on graded height and graded conical degree

Mechanism and Machine Theory, Journal Year: 2025, Volume and Issue: 206, P. 105929 - 105929

Published: Jan. 21, 2025

Language: Английский

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Deployment kinematics of axisymmetric Miura origami: Unit cells, tessellations, and stacked metamaterials

International Journal of Mechanical Sciences, Journal Year: 2022, Volume and Issue: 232, P. 107615 - 107615

Published: Aug. 8, 2022

Language: Английский

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Dynamic axial crushing behaviors of circular composite tubes with different reinforcing fibers and triggers

International Journal of Mechanical Sciences, Journal Year: 2022, Volume and Issue: 244, P. 108083 - 108083

Published: Dec. 27, 2022

Language: Английский

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Mechanical response of tensegrity-origami solar modules

Applications in Engineering Science, Journal Year: 2023, Volume and Issue: 17, P. 100174 - 100174

Published: Dec. 19, 2023

This work studies the mechanics of novel origami solar modules with tensegrity architecture for integration in dynamic façades energy-efficient buildings. The analyzed are deployed by adjusting rest lengths cables attached to given nodes, so as form a origami. Their stiffness is tuned pretension actuation cables, when deployment motion locked. insertion thermal or photovoltaic panels into rigid elements module makes it possible positive-energy systems. kinematics and investigated structures through analytic numerical methods. Two folding motions examined: open close track sun rays. rapid prototyping physical mock-up permits an experimental validation force–displacement response configuration sun-tracking motion. A procedure computation fundamental vibration modes frequencies quadrangular also given, expected system under wind loading outlined.

Language: Английский

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