Wing Coupling in Bees and Wasps: From the Underlying Science to Bioinspired Engineering

Area of Science:

• Biomechanics
• Insect Morphology
• Biomimetics

Background:

• Insect wing-to-wing coupling mechanisms are crucial for synchronized flight and minimizing aerodynamic interference.
• Despite a shared function, these coupling mechanisms exhibit significant morphological diversity across different insect groups.

Purpose of the Study:

• To investigate the structure-material-function relationship of wing couplings in nine Hymenoptera castes and species.
• To establish a quantitative link between morphological variations in coupling mechanisms and the forces they experience.

Main Methods:

• Comparative morphological analysis of wing coupling structures across selected Hymenoptera species.
• Functional assessment of coupling properties including springiness, robustness, and asymmetric behavior.
• Biomimetic fabrication of a novel rotating-sliding mechanical joint inspired by insect wing couplings.

Main Results:

• Springiness, robustness, and asymmetric behavior of wing couplings were found to augment functionality.
• These properties effectively reduce stress concentrations and mitigate impacts from excessive flight forces.
• A quantitative correlation was established between specific morphological variants and the forces encountered by the couplings.

Conclusions:

• The study elucidates how specific structural and material properties of insect wing couplings enhance flight efficiency and durability.
• A novel biomimetic rotating-sliding joint, capable of withstanding tension and compression and offering locking/unlocking capabilities, was successfully developed.
• This research represents a pioneering integration of biological insights and engineering principles for biomimetic design.