Mechanical response of tensegrity-origami solar modules

Applications in Engineering Science, Год журнала: 2023, Номер 17, С. 100174 - 100174

Опубликована: Дек. 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.

Язык: Английский

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Further investigation and experimental study of an origami structure-based quasi-zero-stiffness vibration isolator

International Journal of Non-Linear Mechanics, Год журнала: 2023, Номер 157, С. 104554 - 104554

Опубликована: Сен. 18, 2023

A quasi-zero stiffness (QZS) vibration isolator formed from a truss-spring stacked Miura-ori (TS-SMO) origami structure can provide desired ultra-low dynamic for isolation while remaining high-static load supporting capacity. This paper further investigates the design parameters and experimentally studies performance of proposed TS-SMO system. The effects spring initial setup conditions on its static response are analysed. With proper parameter selection, resultant force generated by be expressed as polynomial containing components which does not have linear term. displacement transmissibility system is calculated to evaluate performance. Analytical numerical results in good agreement both demonstrate an resonance frequency isolation. behaviour also investigated under different enhance proof-of-concept prototype designed, fabricated tested verify performances QZS isolator. comparative experimental between corresponding nonlinear validate origami-inspired confirm effectiveness It hoped that this research would solid foundation designing modelling adopted practical engineering applications.

Язык: Английский

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Kresling origami-inspired electromagnetic energy harvester with reversible nonlinearity

Smart Materials and Structures, Год журнала: 2024, Номер 33(3), С. 035043 - 035043

Опубликована: Фев. 9, 2024

Abstract This paper presents an electromagnetic energy harvester based on a unique nonlinear Kresling origami-inspired structure. By introducing the equilibrium shift phenomenon, reversible nonlinearity (i.e. mixed softening-hardening behavior) empowers proposed to work in broad frequency band, confirmed by both simulation using dynamic model and experimentation. The prototyped device can produce open-circuit root mean square (RMS) voltage from 0.09 V 0.20 reversibly response region (6.19 Hz, 9.63 Hz) maximum output power of 0.4956 mW at optimum load 18.1 Ω under excitation 1.1 g. Moreover, detailed research further reveals that design parameters structure electrical mechanical loads influence nonlinearity. Increasing tip mass γ 0 M2 map strengthens softening behavior, enlarging enhances hardening behavior. findings this deepen understanding behavior origami, unveils great potential origami harvesting offers new method realize broadband vibration harvesters.

Язык: Английский

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Deployment analysis of membranes with creases using a nonlinear torsion spring model

International Journal of Mechanical Sciences, Год журнала: 2023, Номер 255, С. 108444 - 108444

Опубликована: Май 15, 2023

Membranes have been widely applied in spacecrafts, such as solar sails and deployable antenna structures, due to their light weight high compact ratio. The geometric profile of deployed membranes has an important impact on the performance a membrane-based spacecraft, which should be accurately predicted during deployment process. However, some observable dynamic characteristics are difficult simulated accurately. In this paper, equivalent torsion spring model for membrane crease is proposed derived describe complex process membrane. elastic plastic phases both considered model. Based method, experimentally-observed spring-back position corresponding torque can quantitatively predicted. Combining with finite element software, processes single-fold Miura-fold compared experimental results, showing good agreement. Finally, 3-axis stabilized sail using method.

Язык: Английский

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Deployment dynamics of thick panel Miura-origami

Aerospace Science and Technology, Год журнала: 2023, Номер 144, С. 108795 - 108795

Опубликована: Ноя. 29, 2023

Язык: Английский

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