Abstract
Compliant mechanisms find use in numerous applications both in micro and macro scale devices. Most of the current compliant mechanisms base their behavior on beam flexures. Their range of motion is thus limited by the stresses developed upon deflection. Conversely, the proposed mechanism relies on elastically nonlinear components to achieve large deformations. These nonlinear elements are composite morphing double-helical structures that are able to extend and coil like springs, yet, with nonlinear stiffness characteristics. A mechanism consisting of such structures, assembled in a simple truss configuration, is explored. A variety of behaviors is unveiled that could be exploited to expand the design space of current compliant mechanisms. The type of behavior is found to depend on the initial geometry of the structural assembly, the lay-up, and on other characteristics specific of the composite components.
Original language | English |
---|---|
Article number | JMR-19-1034 |
Number of pages | 14 |
Journal | Journal of Mechanisms and Robotics |
Volume | 11 |
Issue number | 5 |
Early online date | 5 Aug 2019 |
DOIs | |
Publication status | Published - 1 Oct 2019 |
Research Groups and Themes
- Bristol Composites Institute ACCIS
Keywords
- Deformation
- Geometry
- Deflection
- Design
- Trusses (Building)
- Stress
- Manufacturing
- Composite materials
- Compliant mechanisms
- Springs
Fingerprint
Dive into the research topics of 'Multistable Morphing Mechanisms of Nonlinear Springs'. Together they form a unique fingerprint.Datasets
-
Data for "Multistable Morphing Mechanisms of Nonlinear Springs"
Aza, C. (Creator) & Pirrera, A. (Data Manager), University of Bristol, 19 Jun 2019
DOI: 10.5523/bris.rb2p7tvx0xz2b2ielej67r9c, http://data.bris.ac.uk/data/dataset/rb2p7tvx0xz2b2ielej67r9c
Dataset