Article
Computer Science, Interdisciplinary Applications
Yao Chen, Chenhao Lu, Jiayi Yan, Jian Feng, Pooya Sareh
Summary: This study successfully addresses the problem of automated design of scalene-faceted flat-foldable origami tessellations using an efficient metaheuristic algorithm. The research methods include establishing constraint curves, adopting graphical and particle swarm optimization methods to produce optimal patterns, and determining mountain-valley assignments using mixed-integer linear programming. The experimental results demonstrate that the proposed methods have high accuracy and low computational cost.
JOURNAL OF COMPUTATIONAL DESIGN AND ENGINEERING
(2022)
Article
Computer Science, Software Engineering
Yan Zhao, Yinglei Wei
Summary: This paper presents an inverse-design method based on waterbomb folding to approximate three-dimensional target surfaces. The waterbomb base is used to generate a partially folded base mesh according to the target surface, and constraints of developability and flat-foldability are solved through a gradient-based optimization. The seven-crease waterbomb base is also utilized to approximate curved target surfaces, and a constraint of planarity is identified and solved.
COMPUTER-AIDED DESIGN
(2023)
Article
Computer Science, Interdisciplinary Applications
Yan Zhao, Yinglei Wei, Yiyang Jia, Shiling Li, Mingyue Zhang, Lanling Zeng, Yang Yang, Jun Mitani
Summary: This paper proposes a method for constructing a discrete version of a cylindrical surface using square or rectangular units inspired by the waterbomb tessellation. The method optimizes unit size and crease patterns to achieve cost-efficient constructions. By folding collinear creases between adjacent rows of units and leaving other creases unfolded, three-dimensional curved structures can be deployed. The relationship between the width and height of the rectangular unit is analyzed to flexibly approximate the outline of the target surface.
JOURNAL OF COMPUTATIONAL DESIGN AND ENGINEERING
(2022)
Article
Engineering, Mechanical
Sen Wang, Dongbo Liang, Hailin Huang, Bing Li, Rongqiang Liu, Fengfeng Xi
Summary: A new approach is proposed to arrange the actuations of rigid foldable waterbomb origami in order to match its degrees-of-freedom. The origami is modeled as a combination of three types of six-crease origami units, which is equivalent to spherical 6R mechanisms. The actuation arrangement is completed using a clear, target, and arrangement parts, and the correctness of the arrangement is verified using Adams software. An intuitive mathematical method is used for actuation design, allowing the origami to exhibit unique motion.
JOURNAL OF MECHANISMS AND ROBOTICS-TRANSACTIONS OF THE ASME
(2022)
Article
Engineering, Mechanical
Yao Chen, Jiayi Yan, Jian Feng, Pooya Sareh
Summary: This study uses geometric-graph-theoretic representation of flat-foldable origami tessellations and proposes an optimization framework for developing flat-foldable origami patterns with four-fold vertices. The effectiveness and feasibility of this method have been verified with several origami patterns, showcasing that it is more efficient and cost-saving compared to traditional analytical approaches and genetic algorithms.
JOURNAL OF MECHANICAL DESIGN
(2021)
Article
Engineering, Mechanical
Yucai Hu, Yexin Zhou, Haiyi Liang
Summary: This article presents a method for constructing generalized Miura-ori patterns that can approximate three-dimensional parametric surfaces while preserving the properties of standard Miura-ori. By placing vertices on the target surfaces and performing constrained optimization, rigid folding from the flat state to the target state with a single degree-of-freedom is achieved.
JOURNAL OF MECHANISMS AND ROBOTICS-TRANSACTIONS OF THE ASME
(2021)
Article
Engineering, Mechanical
Lifang Qiu, Yakun He, Yanlin Li, Yue Yu
Summary: In this paper, a biomimetic jellyfish origami mechanism (BJOM) based on waterbomb tessellations is designed and optimized. Two single-objective optimization models were established to optimize the structural parameters of the BJOM, resulting in significant improvements in the range of fineness ratio and volume ratio. A three-objective optimization model was also considered, leading to even better performance of the BJOM. The feasibility and superiority of the optimization method and design were demonstrated.
MECHANISM AND MACHINE THEORY
(2023)
Article
Engineering, Civil
Anthony Verzoni, Masoud Rais-Rohani
Summary: This study explores various design concepts for foldable shelters, presenting and analyzing shelter forms inspired by the geometric attributes of origami. Rigorous mathematical models and CAD modeling are used to evaluate and compare thin-walled and thick-walled shelter concepts. The results demonstrate the applicability of compound folding patterns in thick-walled origami-inspired shelters, and the dependence of erection torque on application location and transition process.
ENGINEERING STRUCTURES
(2022)
Article
Nanoscience & Nanotechnology
Yang Deng, Weixuan Liu, Yik Kin Cheung, Yongkai Li, Wei Hong, Hongyu Yu
Summary: This paper presents a method for designing curved displays of nondevelopable shapes using a structure-mechanics-inspired functional optimization method. The technology involves microfabrication for manufacturing 2D flexible foldable circuit boards and mold guidance for folding 2D sheets into curved 3D display prototypes. It is suitable for mass production and advances the application of next-generation curved displays.
MICROSYSTEMS & NANOENGINEERING
(2021)
Article
Engineering, Mechanical
Rinki Imada, Tomohiro Tachi
Summary: This paper proposes a kinematic model for the waterbomb tube and investigates its behavior by parameterizing the geometry and deriving a recurrence relation between the modules of the waterbomb tessellation. Through visualization, solutions are classified into cylinder, wave-like, and finite solutions. Analyzing the stability and bifurcation of the dynamical system, the changes in the waterbomb tube's behavior with changes in the crease pattern are examined. Furthermore, the existence of a wave-like solution around one of the cylinder solutions is proven.
JOURNAL OF MECHANISMS AND ROBOTICS-TRANSACTIONS OF THE ASME
(2022)
Article
Mechanics
Shuqin Dong, Xiaohua Zhao, Ying Yu
Summary: A dynamic analysis framework combining the particle-bar-spring model and finite particle method is proposed in this study for analyzing various origami structures. Simulations and analysis of the dynamic unfolding process of different origami patterns reveal global dynamic response and free unfolding trajectories that have not been presented in previous numerical analysis.
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
(2021)
Article
Materials Science, Multidisciplinary
Yuehao Zhang, Yuanqing Gu, Yan Chen, Ming Li, Xiao Zhang
Summary: In this paper, a novel foldable cube and a rhombic dodecahedron are created by introducing slits and diagonal creases to the surfaces. The one-DOF rigid and flat-foldable properties of these polyhedrons are verified by kinematic analysis. A new foldable tetrahedron is obtained by projecting the creases and slits of the rhombic dodecahedron onto a tetrahedron, which possesses two flat-foldable motion paths. After removing unnecessary creases, an origami tetrahedron with simplified creases is constructed. Kinematic analysis shows that these newly discovered origami polyhedrons are flat-foldable with one DOF, demonstrating favorable application prospects for space architectures and extraterrestrial habitats.
ACTA MECHANICA SOLIDA SINICA
(2023)
Article
Physics, Fluids & Plasmas
Xiangxin Dang, Fan Feng, Huiling Duan, Jianxiang Wang
Summary: The paper introduces a unified design method for deployable quadrilateral kirigami tessellations perforated on flat sheets with different topologies, based on the parametrization of kirigami patterns formulated as the solution of a linear equation system. The method provides geometric constraints for deployability and preserves topological characteristics of the flat sheets, offering interesting perspectives for the topological design of kirigami-inspired structures and metamaterials.
Article
Multidisciplinary Sciences
Matthew Grasinger, Andrew Gillman, Philip R. R. Buskohl
Summary: This study investigates the multistability of origami, focusing on the symmetric eightfold waterbomb as a classic origami base. Bistable and tristable cases are analyzed, with bounds and approximations of the stable states derived. The study also explores one-dimensional arrays of waterbombs and discovers a conserved geometric-kinematic quantity. This work presents an alternative approach for characterizing origami multistability properties and reveals potential applications in reconfigurable structures, energy absorption, and metamaterials.
PROCEEDINGS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES
(2022)
Article
Engineering, Mechanical
JingMing Tang, MengQian Tian, CunJin Wang, XingSong Wang, HongLi Mao
Summary: This paper proposes a scheme of folding discretized surfaces of revolution to create foldable 3D geometries, which shows the potential application in the field of aerospace. The feasibility of the folding scheme is verified by showing the formula of four typical surfaces and retaining the original surfaces' features.
MECHANISM AND MACHINE THEORY
(2021)
Article
Engineering, Electrical & Electronic
Yang Yang, Hongjun Hui, Lanling Zeng, Yan Zhao, Yongzhao Zhan, Tao Yan
Summary: This paper proposes a simple yet effective global edge-preserving filter based on soft clustering. It can suppress intensity shift artifacts and handle halo artifacts. Additionally, it offers flexible control over the amount of smoothing and has low computational complexity.
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY
(2022)
Article
Computer Science, Interdisciplinary Applications
Yan Zhao, Yinglei Wei, Yiyang Jia, Shiling Li, Mingyue Zhang, Lanling Zeng, Yang Yang, Jun Mitani
Summary: This paper proposes a method for constructing a discrete version of a cylindrical surface using square or rectangular units inspired by the waterbomb tessellation. The method optimizes unit size and crease patterns to achieve cost-efficient constructions. By folding collinear creases between adjacent rows of units and leaving other creases unfolded, three-dimensional curved structures can be deployed. The relationship between the width and height of the rectangular unit is analyzed to flexibly approximate the outline of the target surface.
JOURNAL OF COMPUTATIONAL DESIGN AND ENGINEERING
(2022)
Article
Computer Science, Artificial Intelligence
Chunzhi Gu, Yan Zhao, Chao Zhang
Summary: In this paper, a novel approach based on mixture density networks (MDN) is proposed to predict future human motions from a single image. Unlike existing methods, the multimodal nature of MDN allows the generation of diverse motion hypotheses, compensating for the stochastic ambiguity caused by the single input and human motion uncertainty. The energy-based formulation is introduced to customize the energy functions and improve the prediction accuracy while maintaining motion coherence. Experimental results on benchmark datasets demonstrate the effectiveness of the proposed method in terms of prediction diversity and accuracy.
KNOWLEDGE-BASED SYSTEMS
(2022)
Article
Computer Science, Software Engineering
Yan Zhao, Yinglei Wei
Summary: This paper presents an inverse-design method based on waterbomb folding to approximate three-dimensional target surfaces. The waterbomb base is used to generate a partially folded base mesh according to the target surface, and constraints of developability and flat-foldability are solved through a gradient-based optimization. The seven-crease waterbomb base is also utilized to approximate curved target surfaces, and a constraint of planarity is identified and solved.
COMPUTER-AIDED DESIGN
(2023)