Article
Mechanics
Jihui Li, Xiao Zhang, Siqi An, Zhiwei Zhu, Zichen Deng, Zhong You
Summary: This article introduces a method of constructing foldable polyhedral cellular arrays using origami and kirigami techniques. The authors demonstrate through the analysis of connection types and kinematics that the foldable cellular assembly has a single degree of freedom. Physical models were created to validate the findings. These foldable cellular structures can be used for constructing space habitats or robot arms.
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
(2022)
Article
Engineering, Mechanical
Jihui Li, Zhenyuan Yu, Zhiwei Zhu, Zichen Deng
Summary: This paper presents a novel design of a foldable prismatic structure that can accommodate the thickness of materials. The structure is constructed by connecting multiple zigzag strips, and its motion characteristics are analyzed using the matrix method. Based on this design, a foldable manipulator is developed and proven to be effective.
JOURNAL OF MECHANISMS AND ROBOTICS-TRANSACTIONS OF THE ASME
(2023)
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
Multidisciplinary Sciences
Amin Jamalimehr, Morad Mirzajanzadeh, Abdolhamid Akbarzadeh, Damiano Pasini
Summary: The researchers have developed a rigidly foldable cellular metamaterial by combining the concepts of kirigami and origami. This metamaterial can maintain stiffness in multiple directions and can be reprogrammed in situ, allowing for various folding paths and spatial locking.
NATURE COMMUNICATIONS
(2022)
Article
Engineering, Mechanical
Zhiqiang Meng, Weitong Chen, Tie Mei, Yuchen Lai, Yixiao Li, C. Q. Chen
Summary: This research presents a design of mechanical logic gates based on kirigami and origami, successfully demonstrating the experimental validation of AND, OR, and NOT gates. By combining the logic gates together, it provides a possible solution for more complex logic operations.
EXTREME MECHANICS LETTERS
(2021)
Article
Multidisciplinary Sciences
Jingyi Yang, Xiao Zhang, Yan Chen, Zhong You
Summary: The research presents a solution based on folding thick panels, which is crucial in aerospace applications. Through modular construction, deployable unit arrays are created with only a single degree of freedom.
PROCEEDINGS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES
(2022)
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
Instruments & Instrumentation
Derosh George, Marc J. Madou, Edwin A. Peraza Hernandez
Summary: The manufacturing method presented in this paper allows for the fabrication of three-dimensional polyhedral structures at millimeter and sub-millimeter scales using programmable, self-foldable polymer films. By utilizing origami design and double-exposure photolithography, the method enables self-folding by creating concentration gradients during the development step of the photolithography process. This technique shows promise for applications in microelectronics, packaging, and particle entrapment.
SMART MATERIALS AND STRUCTURES
(2021)
Article
Chemistry, Physical
Seoha Kim, Yujin Na, Chaeyoung Nam, Chang Kyu Jeong, Kyung Tae Kim, Kwi-Il Park
Summary: Recently, there has been increased attention on thermoelectric (TE) energy harvesting technology using polymer-based TE materials due to the focus on environmental initiatives such as the green campaign and green economy. Cellulose, an abundant natural organic biomass resource, has been found to play a crucial role in substituting petroleum-based polymers. By drop-casting a self-assembled inorganic particle network layer below a cellulose polymer bio-matrix layer, origami and kirigami-enabled TE paper with resorbable properties was developed. The TE papers exhibited high-power factor values and a flexible TE energy harvester achieved a stable output performance.
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, Civil
Mojtaba Moshtaghzadeh, Ehsan Izadpanahi, Pezhman Mardanpour
Summary: This paper conducts a thorough mechanical analysis of a foldable origami helical antenna using the Kresling pattern, predicting the fatigue life and studying the effects of design parameters on it. The study shows that a structure with a length ratio of 1.9 has the highest life cycles, while creases design plays a significant role in the fatigue life and folding behavior.
ENGINEERING STRUCTURES
(2022)
Article
Engineering, Mechanical
Xin Wu, Canjun Yang, Jia Li, Qichao Zhao, Weitao Wu, Yuanchao Zhu, Feng Zhang
Summary: This paper presents a rigid and foldable mechanism based on the origami artwork, with proposed geometric design criteria and a mathematical model to prevent internal interference. Experimental results show that the fabricated mechanism has good kinematic characteristics and is suitable for applications such as continuum manipulators.
JOURNAL OF MECHANISMS AND ROBOTICS-TRANSACTIONS OF THE ASME
(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
Engineering, Multidisciplinary
Hitesh Bhardwaj, Xinyu Cai, Luke Soe Thura Win, Shaohui Foong
Summary: The paper introduces a novel rotary wing platform that can fold and expand its wings during flight, inspired by birds' wing-folding ability. The design is based on the monocopter platform, inspired by the flight of Samara seeds. Origami techniques are applied to fold the wings in flight. Two configurations are presented, featuring active or passive mechanisms for wing-folding depending on specific application requirements. These platforms can reduce their overall footprint by approximately 39% and 69% while in flight. Experimental results are presented to demonstrate the control of the platform in different modes.
BIOINSPIRATION & BIOMIMETICS
(2023)
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
Engineering, Mechanical
Collin Ynchausti, Nathan Brown, Spencer P. Magleby, Anton E. Bowden, Larry L. Howell
Summary: This paper introduces the design and application of deployable Euler spiral connectors (DESCs). Compact compliant mechanisms can be designed using a combination of series and parallel Euler spiral beam models. The force-deflection behavior and stress of DESCs are validated through comparisons with finite element analysis and experimental data.
JOURNAL OF MECHANISMS AND ROBOTICS-TRANSACTIONS OF THE ASME
(2022)
Article
Engineering, Mechanical
Robert J. Lang, Larry L. Howell
Summary: This study presents a compliant joint that allows near-revolute joint motion over a large folding angle, making it suitable for origami and kirigami mechanisms that preserve the kinematic behavior of zero-thickness idealizations based on perfect folds.
EXTREME MECHANICS LETTERS
(2022)
Article
Engineering, Mechanical
Nathan C. Brown, Collin Ynchausti, Amanda Lytle, Larry L. Howell, Spencer P. Magleby
Summary: This paper introduces a visual and iterative approach to eliminating redundant constraints in origami-based mechanisms through joint removal, and provides examples of several techniques for joint removal.
JOURNAL OF MECHANICAL DESIGN
(2022)
Article
Engineering, Mechanical
Diana Bolanos, Collin Ynchausti, Nathan Brown, Hunter Pruett, Jared Hunter, Brooklyn Clark, Terri Bateman, Larry L. Howell, Spencer P. Magleby
Summary: The Miura-ori pattern has favorable qualities for designing deployable space arrays, but also poses challenges such as thickness-accommodation, nesting, grounding, and deployment. It is important to address and mitigate these challenges when designing Miura-ori systems.
MECHANISM AND MACHINE THEORY
(2022)
Article
Multidisciplinary Sciences
Akash Biswas, Constantinos L. Zekios, Collin Ynchausti, Larry L. Howell, Spencer P. Magleby, Stavros Georgakopoulos
Summary: Designers face the challenge of balancing the trade-off between manufacturing cost and performance as they aim to increase the bandwidth of absorbers. To address this challenge, researchers propose a new approach that combines origami math with electromagnetics to develop an ultra-wideband absorber with minimal fabrication and assembly cost. This novel design successfully achieves an absorptivity above 90% in a 24.6:1 bandwidth, demonstrating the potential for practical applications in mitigating signal interference.
SCIENTIFIC REPORTS
(2022)
Article
Mathematics
Dylan C. Webb, Elissa Reynolds, Denise M. Halverson, Larry L. Howell
Summary: This article introduces a new design for smooth sheet attachment that can unfold simultaneously with zipper-coupled tubes to cover the entire surface without additional actuation, and it is compatible with asymmetric zipper-coupled tubes.
Article
Engineering, Mechanical
Diana Bolanos, Katie Varela, Brandon Sargent, Mark A. Stephen, Larry L. Howell, Spencer P. Magleby
Summary: The design parameters, objectives, and trade-offs of origami flasher pattern configurations are the focus of this paper, with a goal to improve understanding and enable engineering applications. The methods presented aim to provide clarity on the effects of tuning flasher parameters based on existing synthesis tools. The results are demonstrated through the design of a flasher-based deployable LiDAR telescope, where optimization is used to converge on optimal design parameters and implemented in proof-of-concept hardware.
JOURNAL OF MECHANICAL DESIGN
(2023)
Article
Engineering, Mechanical
Hunter T. Pruett, Abdul-Sattar Kaddour, Stavros V. Georgakopoulos, Larry L. Howell, Spencer P. Magleby
Summary: Trends in the aerospace industry drive the need for smaller, cheaper, yet high-gain antennas. This study presents a thick, flat-foldable origami design, called volume-efficient Miura-ori (VEMO), for deployable reflectarray antennas. By maximizing the surface area while meeting volume and aspect ratio constraints, the VEMO design offers an efficient solution for antenna applications.
EXTREME MECHANICS LETTERS
(2022)
Article
Sport Sciences
Barnaby Sargent Megicks, Kevin Till, Fieke Rongen, Ian Cowburn, Adam Gledhill, Thomas Mitchell, Stacey Emmonds, Sergio Lara-Bercial
Summary: Talent Development Environments (TDEs) are designed to provide the appropriate conditions for youth athletes to realize their full sporting potential, and how they are designed and operated is of great importance for the development of elite athletes. This study assessed the quality of TDEs across 5 European countries, comparing athlete, parent and coach perceptions. Overall, perceptions of European TDEs were positive. Coaches reported higher perceptions of TDE quality compared to athletes and parents, athletes reported marginally higher perceptions compared to parents. Stakeholder perceptions varied most for the Holistic Quality Preparation subscale, highlighting perceived differences in TDE support for rounded athlete development. From an organizational perspective, identified strengths and weaknesses provide direction to coach and parent education. Practically, TDE leaders should consider how they can refine stakeholder coordination through integrating stakeholder perceptions as valuable feedback into their environment, especially for intangible factors.
JOURNAL OF SPORTS SCIENCES
(2022)
Article
Engineering, Mechanical
Mohui Jin, Collin Ynchausti, Larry L. Howell
Summary: Euler spiral beams can lay flat when proper loads are applied, enabling them to be used in compact deployable compliant mechanisms. However, the conditions for zero-curvature deformation and effective models for predicting deformation are still unclear. This paper describes the shape of Euler spirals using size-independent quantities and derives the large-deflection equations for Euler spiral beams. The zero-curvature deformation properties and conditions are studied, and a 3R pseudo-rigid-body model is proposed. The results facilitate the use of zero-curvature deformation in developing compact mechanisms and analyzing large deflection of Euler spiral beams.
MECHANISM AND MACHINE THEORY
(2023)
Article
Biophysics
Brandon Sargent, Diana Bolanos, Victor Garcia, Larry Howell
Summary: Understanding the force-deflection behavior of the sternum is crucial for designing implant devices for chest wall deformity repair. This study utilizes empirical data to develop models and finds age and gender differences in the behavior. The results show that stiffness of the sternum varies with age, with childhood, adolescence, and adulthood exhibiting different patterns.
JOURNAL OF BIOMECHANICAL ENGINEERING-TRANSACTIONS OF THE ASME
(2023)
Article
Engineering, Mechanical
Collin Ynchausti, Spencer Shirley, Spencer P. Magleby, Larry L. Howell
Summary: This work proposes a method for creating hinge-like motion using internal membranes between rigid panels. Two configurations, RadiCEL and RC-ReCS, are described for planar, single-folding mechanisms. The adjustability of these configurations is discussed to meet various design requirements. A comparison is made, focusing on axial parasitic motion. The application of the RadiCEL hinge in a foldable metasurface antenna is also presented.
MECHANISM AND MACHINE THEORY
(2023)
Article
Multidisciplinary Sciences
Brandon Sargent, Katie Varela, Dennis Eggett, Emily McKenna, Christina Bates, Rebeccah Brown, Victor Garcia, Larry Howell
Summary: Pectus carinatum, a chest wall deformity, can be effectively treated using external braces. Empirical studies were conducted on 185 patients from 2018 to 2020 to analyze the severity of the deformity, treatment pressures, and time of wear. Two statistical models were created to predict changes in pressure and response in the chest wall due to prolonged bracing. These models show significant correlations between pressure, time, and changes in the deformity, and can aid in treatment planning and design of future treatment systems.
Editorial Material
Multidisciplinary Sciences
Larry L. Howell, Terri Bateman
Summary: The availability of maker resources allows researchers to share information with various audiences, expanding the impact of research and inspiring its extension and application.
NATURE COMMUNICATIONS
(2023)
Article
Engineering, Electrical & Electronic
Antonio J. Rubio, Abdul-Sattar Kaddour, Collin Ynchausti, Spencer Magleby, Larry L. Howell, Stavros V. Georgakopoulos
Summary: A novel deployable flat panel reflectarray antenna is designed for Small Satellite applications, achieving high aperture efficiency and volume packing efficiency. The proposed structure operates at 16 GHz with a realized gain greater than 26.4 dBi. Prototypes of the two variations of the structure show good correlation with simulations.
IEEE OPEN JOURNAL OF ANTENNAS AND PROPAGATION
(2021)
