Fluid-structure interaction study of spider's hair flow-sensing system
Roberto Guarino, Gabriele Greco, Barbara Mazzolai, Nicola Maria Pugno
TL;DR
This study combines experimental and numerical methods to analyze the fluid-structure interaction of spider hairs, providing insights for bio-inspired sensor and robotic design.
Contribution
It introduces a comprehensive FSI simulation framework based on experimental data of spider hairs, advancing understanding of their flow sensing mechanisms.
Findings
Mechanical stresses depend on air velocity and hair spacing.
Spider hairs exhibit specific morphological and mechanical properties.
Results inform bio-inspired sensor design.
Abstract
In the present work we study the spider's hair flow-sensing system by using fluid-structure interaction (FSI) numerical simulations. We observe experimentally the morphology of Theraphosa stirmi's hairs and characterize their mechanical properties through nanotensile tests. We then use the obtained information as input for the computational model. We study the effect of a varying air velocity and a varying hair spacing on the mechanical stresses and displacements. Our results can be of interest for the design of novel bio-inspired systems and structures for smart sensors and robotics.
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