Bistable Structures for Advanced Functional Systems

Bistable mechanical systems having two local minima of potential energy can rest in either of the two stable equilibrium states in the absence of external loadings. A snap‐through action may occur under suitable stimuli and/or loading, during which such systems exhibit distinct properties from linea...

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Bibliographic Details
Published in:Advanced functional materials 2021-11, Vol.31 (45), p.n/a
Main Authors: Cao, Yunteng, Derakhshani, Masoud, Fang, Yuhui, Huang, Guoliang, Cao, Changyong
Format: Article
Language:English
Subjects:
Actuators
advanced functional systems
Bistability
bistable structures
energy harvesters
Energy harvesting
Materials science
MEMS
Metamaterials
Microelectromechanical systems
Potential energy
Robotics
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Summary:Bistable mechanical systems having two local minima of potential energy can rest in either of the two stable equilibrium states in the absence of external loadings. A snap‐through action may occur under suitable stimuli and/or loading, during which such systems exhibit distinct properties from linear structures. Such kinds of structures have been widely exploited for designing advanced functional systems for a variety of applications. Here, the advances of bistable structures are summarized for novel advanced functional systems, including actuators, energy harvesters, microelectromechanical systems (MEMS), robotics, energy absorbers, and programmable devices as well as metamaterials. The controllable snap‐through motions are highlighted in the nonlinear structures of bistability/multistability. Finally, the major principles, structures, pros and cons, and the future research directions along with its challenges are discussed. Recent advances in bistable structures for novel advanced functional systems, including actuators, energy harvesters, microelectromechanical systems, robotics, energy absorbers, and programmable devices, as well as metamaterials are systematically reviewed. The major working principles, structures, pros and cons, and future research opportunities and challenges are reviewed and discussed in detail.
ISSN:1616-301X
1616-3028
DOI:10.1002/adfm.202106231