Article
Engineering, Mechanical
Xianhe Wei, Yanzhi Zhao, Zhengwei Fan, Erwei Li, Zhen Han, Zhixin Liu
Summary: In this paper, the basic elements of Yoshimura origami patterns are extracted and a discrete splicing construction method is created to control the circumference of a tubular origami structure based on basic elements. Furthermore, a construction function and a solution process for the Yoshimura origami pattern tubular structure based on a combination of the basic elements are proposed. The theoretical synthesis approach of this study provides new ideas for the innovative design of origami robots, mechanical metamaterials, and energy-absorbing cushioned structures.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE
(2023)
Article
Engineering, Mechanical
Sen Wang, Yinghao Gao, Hailin Huang, Bing Li, Hongwei Guo, Rongqiang Liu
Summary: This paper introduces a method for designing rigid origami flashers for deployment on curved surfaces, utilizing parallel projection principles and numerical methods to obtain vertices, then transforming them into rigid panels using flexible and elastic hinges. The feasibility of the approach is verified through numerical simulations and physical prototypes, providing convenience for its application in space engineering.
MECHANISM AND MACHINE THEORY
(2022)
Article
Multidisciplinary Sciences
Kai Xiao, Zihe Liang, Bihui Zou, Xiang Zhou, Jaehyung Ju
Summary: The study developed an inverse design method for constructing 3D curvilinear reconfigurable structures with multi-DOF. The method involves synthesizing modular origami structures and reconstructing modules using geometric and topological combinations, providing an effective solution for the design of such structures.
NATURE COMMUNICATIONS
(2022)
Article
Engineering, Mechanical
Long Huang, Peng Zeng, Lairong Yin, Bei Liu, Yuanhan Yang, Juan Huang
Summary: This paper proposes a non-Euclidean rigid origami-based underwater sampler with one degree-of-freedom (DOF) deploying-encircling motion, which can capture underwater organisms without damage. By analyzing the kinematics and rigid foldability of the origami pattern, the key parameter is determined, and the drive system of the sampler is designed.
MECHANISM AND MACHINE THEORY
(2022)
Article
Engineering, Mechanical
Phanisri P. Pratapa, Ke Liu, Siva P. Vasudevan, Glaucio H. Paulino
Summary: This research investigates the folding kinematics of a Morph pattern structure through rigid panel assumptions, exploring the different modes and hybrid states that can be achieved. It discusses the interplay between local and global kinematics, studying how folding deformations can result in reprogrammable morphing behavior. Through numerical simulations, the study verifies the deformation characteristics predicted analytically.
JOURNAL OF MECHANISMS AND ROBOTICS-TRANSACTIONS OF THE ASME
(2021)
Article
Engineering, Mechanical
Luca Zimmermann, Kristina Shea, Tino Stankovic
Summary: This paper introduces a computational design synthesis method for generating novel crease patterns applicable to engineering applications. The method is applied to design a rigidly foldable gripper and a rigidly foldable robotic arm.
JOURNAL OF MECHANISMS AND ROBOTICS-TRANSACTIONS OF THE ASME
(2022)
Article
Physics, Fluids & Plasmas
Riccardo Foschi, Thomas C. Hull, Jason S. Ku
Summary: We derive algebraic equations for the folding angle relationships in completely general degree-4 rigid-foldable origami vertices, including both Euclidean and non-Euclidean cases. These equations in turn lead to elegant equations for the general developable degree-4 case. We compare our equations to previous results in the literature and provide two examples of how the equations can be used.
Article
Robotics
Wei-Hsi Chen, Woohyeok Yang, Lucien Peach, Daniel E. Koditschek, Cynthia R. Sung
Summary: This article presents a fully automated algorithm for converting an abstract manipulator specification into a physically realizable origami design. The algorithm can generate both rigid and compliant structures from a single material, with user-specified compliance.
IEEE TRANSACTIONS ON ROBOTICS
(2023)
Article
Engineering, Mechanical
Sen Wang, Jinshan Wu, Peng Yan, Hailin Huang, Bing Li, Rongqiang Liu
Summary: This paper proposes a planar deployable circular structure (DCS) based on the Miura-ori pattern, as well as the design of system parameters and an optimization model for the deploy/fold ratio. Another method for designing curved-surface DCS is proposed that is based on the parallel projection principle. Suitable numerical design methods for obtaining the vertices of planar and curved-surface DCSs are summarized. The actuation methods for planar and curved-surface deployable structures are presented. The feasibility of the proposed design approach is verified through fabrication of physical prototypes and deployment experiments.
MECHANISM AND MACHINE THEORY
(2023)
Article
Engineering, Electrical & Electronic
Xu Yan, Fang Qin, Li Hua
Summary: A novel variable stiffness axial expansion pneumatic artificial muscle based on hexagonal origami is proposed in this study. The study develops analysis models and evaluates the variable stiffness characteristics, which are verified through comparison with experimental and numerical simulation results.
SENSORS AND ACTUATORS A-PHYSICAL
(2021)
Article
Engineering, Civil
Yuntong Du, Thomas Keller, Changping Song, Zhenqian Xiao, Linzhi Wu, Jian Xiong
Summary: This study presents a methodology for designing cylindrical origami with different patterns and cross-sectional shapes, and proves the foldability and developability of curved-crease patterns. It explores the relationships between 2D crease lines in a sheet and 3D spatial origami structures, paving the way for applications in engineering such as energy absorption.
THIN-WALLED STRUCTURES
(2021)
Article
Engineering, Mechanical
Jianguo Cai, Qiuyue Zhong, Xiaohui Zhang, Kexin Wang, Qian Zhang, Jian Feng
Summary: This article introduces a novel tracking method for bifurcation paths in origami-inspired deployable structures. By establishing Jacobian matrix equations and using high-order expansion forms of length constraint conditions, the degrees-of-freedom and bifurcation points of structural motion are determined, revealing the rich kinematic properties of the wrap folding pattern.
JOURNAL OF MECHANISMS AND ROBOTICS-TRANSACTIONS OF THE ASME
(2023)
Article
Materials Science, Multidisciplinary
Maurizio Brocato
Summary: The equivalence between first order kinematic compatibility and equilibrium of forces is used to propose a design method for stone block structures. The method is based on the assumption of small changes in the folding of an origami model and considers configuration-dependent external forces. The choice of reference configuration and limit analysis are also important factors in the design. Illustrative examples are provided for different types of structures.
MECHANICS OF MATERIALS
(2023)
Article
Engineering, Civil
Qinglin Wang, Mingzhou Su
Summary: This study used the displacement method to derive single-module lateral stiffness expressions and obtain the overall lateral stiffness of SMSS-SRCs. Negative lateral stiffness of the modular column was achieved by modifying rotational constraints. The study also introduced formulas for calculating critical buckling load and effective length factors of columns in SMSS-SRCs.
THIN-WALLED STRUCTURES
(2021)
Article
Engineering, Mechanical
Evandro Bernardes, Stephane Viollet
Summary: This article presents a soft cylindrical multistable origami structure based on bendy straws, which can be both axially multistable and kept in a bent state. The design incorporates the use of pop-through defects (PTDs) to achieve these properties. The study also explores the use of different geometric shapes and materials to create similar nonrigidly foldable origami patterns.
JOURNAL OF MECHANICAL DESIGN
(2022)
Article
Materials Science, Multidisciplinary
Scott D. Kelly, Andrea Micheletti, Alessandro Tiero
FRONTIERS IN MATERIALS
(2019)
Article
Construction & Building Technology
Filipe Amarante dos Santos, Chiara Bedon, Andrea Micheletti
STRUCTURAL CONTROL & HEALTH MONITORING
(2020)
Article
Chemistry, Multidisciplinary
Zacharias Vangelatos, Andrea Micheletti, Costas P. Grigoropoulos, Fernando Fraternali
Article
Engineering, Mechanical
Filipe A. dos Santos, Antonino Favata, Andrea Micheletti, Roberto Paroni
Summary: This passage discusses a continuum elastic plate with infinite degrees of freedom and how to control its shape. It introduces a novel thin plate architecture that can deform in a predetermined shape by adjusting the geometry of hexagons, offering potential applications in various fields such as auxetic scaffolds, prosthetic stress shields, energy harvesters, and wearable devices.
EXTREME MECHANICS LETTERS
(2021)
Review
Mechanics
Andrea Micheletti, Paolo Podio-Guidugli
Summary: The passage from artistic interest to practical applications of tensegrity structures is documented in this article, highlighting the development of modern tensegrity metamaterials and the diverse range of applications. The importance of tensegrity structures and their potential for future research is emphasized.
ARCHIVE OF APPLIED MECHANICS
(2022)
Article
Engineering, Manufacturing
Claudio Intrigila, Andrea Micheletti, Nicola A. Nodargi, Edoardo Artioli, Paolo Bisegna
Summary: This paper presents a novel design and fabrication procedure for bistable tensegrity-like units using stereolithography technology. The designed unit has successfully achieved bistability and demonstrated a reliable activation of the twisting mechanism in large displacements. Numerical simulations have shown close agreement with experimental results, validating the proposed stick-and-spring model to predict the nonlinear mechanical behavior of the unit. The low relative density and bistable characteristics of this type of tensegrity-like unit make it suitable for manufacturing highly-customizable multistable metamaterials.
ADDITIVE MANUFACTURING
(2022)
Article
Mechanics
Muhao Chen, Aguinaldo Fraddosio, Andrea Micheletti, Gaetano Pavone, Mario Daniele Piccioni, Robert E. Skelton
Summary: This paper presents an energy-efficient cable-actuation strategy for the V-Expander tensegrity structure, considering different shape changes. The nonlinear statics and dynamics equations are introduced for the structure, and suitable sets of cables are chosen for the cable-actuation process. The study includes five shape-change types and analyzes the nonlinear behaviors during the morphing process with different actuation speeds. The efficiency of different cable choices is also discussed, and the developed approaches can be applied in designing and analyzing cable-driven tensegrity structures.
MECHANICS RESEARCH COMMUNICATIONS
(2023)
Article
Physics, Applied
Andrea Micheletti, Filipe A. dos Santos, Simon D. Guest
Summary: This paper presents reduced-order analytical models for describing the prestrain-induced bistable effect in tensegrity units. Closed-form expressions of the critical prestrain are derived, which depend only on the geometry of the units. The predictions of the models are verified through numerical simulations and physical models. The proposed tensegrity units can be assembled into one-dimensional metamaterials with tailorable nonlinear features.
APPLIED PHYSICS LETTERS
(2023)
Article
Engineering, Civil
Muhao Chen, Aguinaldo Fraddosio, Andrea Micheletti, Gaetano Pavone, Mario Daniele Piccioni, Robert E. Skelton
Summary: This study presents an analysis method for designing cable-actuated clustered V-Expander tensegrity elementary cells based on nonlinear tensegrity statics. The method involves selecting specific cables as the active elements and determining their actuation efficiency to find the optimal actuation strategy. This approach can be applied to analyze and design other types of cable-driven tensegrity structures.
ENGINEERING STRUCTURES
(2023)
Article
Mechanics
Donato Abruzzese, Davide Bracale, Damiano Forconi, Gian Marco Grizzi, Andrea Micheletti, Daniele Paradisi, Alessandro Tiero, Sreymom Vuth
Summary: Recent advancements in structural monitoring technology have led to the development of methodologies that provide direct information on structures' stress state using optical fibers, strain gauges, and pressure cells. These methods offer real-time data on stress conditions, determining peak stress areas and ensuring structural safety more effectively than traditional monitoring techniques.
CURVED AND LAYERED STRUCTURES
(2021)
Article
Mechanics
Micol Palmieri, Ilaria Giannetti, Andrea Micheletti
Summary: This study focuses on the form-finding of a hybrid tensegrity structure combining arch-supported membrane systems and diamond-type tensegrity systems. Two approaches, Matlab and WinTess, were used for the calculations and analysis of a T3 floating-bending tensile-integrity structure. The research shows the feasibility of floating-bending structures and introduces suitable analysis and optimization procedures for this type of structures.
CURVED AND LAYERED STRUCTURES
(2021)
Proceedings Paper
Engineering, Mechanical
Donato Abruzzese, Andrea Micheletti, Alessandro Tiero, Manuel Cosentino, Damiano Forconi, Gianmarco Grizzi, Gianluca Scarano, Sreymom Vuth, Pierluigi Abiuso
1ST VIRTUAL CONFERENCE ON STRUCTURAL INTEGRITY (VCSI1)
(2020)
Proceedings Paper
Construction & Building Technology
Francesca Brusciotti, Ilaria Giannetti, Andrea Micheletti, Shirley Nwokoye, Diego Ruggeri, Giuseppe Ruscica
IASS 60TH ANNIVERSARY SYMPOSIUM (IASS SYMPOSIUM 2019) - 9TH INTERNATIONAL CONFERENCE ON TEXTILE COMPOSITES AND INFLATABLE STRUCTURES (STRUCTURAL MEMBRANES 2019)
(2019)
Proceedings Paper
Construction & Building Technology
Attilio Pizzigoni, Andrea Micheletti, Giuseppe Ruscica, Vittorio Paris, Stefano Bertino, Matteo Mariani, Vincenzo Trianni, Stefano Madaschi
IASS 60TH ANNIVERSARY SYMPOSIUM (IASS SYMPOSIUM 2019) - 9TH INTERNATIONAL CONFERENCE ON TEXTILE COMPOSITES AND INFLATABLE STRUCTURES (STRUCTURAL MEMBRANES 2019)
(2019)