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We have studied a biomimetic swimmer inspired by the motility mechanisms of bacteria such as E. coli theoretically and experimentally. Even though E. coli uses one or several rotating helical filaments to swim, a single rotating helical filament swimmer is considered in this work. The performance of this swimmer was estimated by modeling the dynamics of a swimmer in viscous fluid. The model has an...
In this work, we present an insect-inspired design of a motor-driven flapping wing system that mimics beetle in terms of beetle's dimension, flapping frequency and wing kinematics. In the design, we used a combination of a Scotch yoke mechanism and a linkage system to transform the rotary motion of a motor into a large flapping motion. A passive wing rotation mechanism was implemented into the flapper...
In this paper, we present an approach to increase flapping frequency of a previously developed flapper actuated by lightweight piezo-composite actuator (LIPCA). This is an effort to mimic the flapping motion of Allomyrina Dichotoma of which flapping frequency is typically 30 Hz. For this purpose, the dynamic characteristic of the LIPCA and the parameter study of a four-bar linkage have been conducted...
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