| Biomimetics of Campaniform Sensilla： Measuring Strain from the Deformation of Holes |
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| 作者姓名： | Julian F. V. Vincent Sally E. Clift Carlo Menon |
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| 作者单位： | [1]Department of Mechanical Engineering, The University of Bath, Bath BA2 7AY, UK [2]Advanced Concepts Team, European Space Agency, 2201 AZ Noordwijk, The Netherlands |
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| 基金项目： | This research was carried out during a joint collaboration between University of Bath and the Advanced Concepts Team of ESA in the framework of the Ariadna program. |
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| 摘 要： | We present a bio-inspired strategy for designing embedded strain sensors in space structures. In insects, the campaniform sensillum is a hole extending through the cuticle arranged such that its shape changes in response to loads. The shape change is rotated through 90° by the suspension of a bell-shaped cap whose deflection is detected by a cell beneath the cuticle. It can be sensitive to displacements of the order of 1 nm. The essential morphology, a hole formed in a plate of fibrous composite mate- rial, was modelled by Skordos et al. who showed that global deformation of the plate （which can be flat, curved or a tube） induces higher local deformation of the hole due to its locally higher compliance. Further developments reported here show that this approach can be applied to groups of holes relative to their orientation. , The morphology of the sensillum in insects suggests that greater sensitivity can be achieved by arranging several holes in a regular pattern; that if the hole is oval it can be ＂aimed＂ to sense specific strain directions; and that either by controlling the shape of the hole or its relationship with other holes it can have a tuned response to dynamic strains. We investigate space applications in which novel bio-inspired strain sensors could successfully be used.
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| 关 键 词： | 仿生学 钟型感应器 纤维复合物 昆虫 |
Biomimetics of Campaniform Sensilla: Measuring Strain from the Deformation of Holes |
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| Julian F. V. Vincent Sally E. Clift Carlo Menon.Biomimetics of Campaniform Sensilla: Measuring Strain from the Deformation of Holes[J].Journal of Bionics Engineering,2007,4(2):63-76. |
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| Authors: | Julian F V Vincent Sally E Clift Carlo Menon |
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| Institution: | Julian F. V. Vincent(Department of Mechanical Engineering, The University of Bath, Bath BA2 7AY, UK);Sally E. Clift(Department of Mechanical Engineering, The University of Bath, Bath BA2 7AY, UK);Carlo Menon(Advanced Concepts Team, European Space Agency, 2201 AZ Noordwijk, The Netherlands); |
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| Abstract: | We present a bio-inspired strategy for designing embedded strain sensors in space structures. In insects, the campaniform sensillum is a hole extending through the cuticle arranged such that its shape changes in response to loads. The shape change is rotated through 90 by the suspension of a bell-shaped cap whose deflection is detected by a cell beneath the cuticle. It can be sensitive to displacements of the order of 1 nm. The essential morphology, a hole formed in a plate of fibrous composite material, was modelled by Skordos et al. who showed that global deformation of the plate (which can be flat, curved or a tube) induces higher local deformation of the hole due to its locally higher compliance. Further developments reported here show that this approach can be applied to groups of holes relative to their orientation.The morphology of the sensillum in insects suggests that greater sensitivity can be achieved by arranging several holes in a regular pattern; that if the hole is oval it can be "aimed" to sense specific strain directions; and that either by controlling the shape of the hole or its relationship with other holes it can have a tuned response to dynamic strains.We investigate space applications in which novel bio-inspired strain sensors could successfully be used. |
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| Keywords: | campaniform sensillum strain displacement compliance hole remote sensing fibrous composite |
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