Investigation of dual varying area flapping actuator of a robotic fish with energy recovery
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Kuupäev
2020
Kättesaadav alates
Autorid
Tipans, I.
Viba, J.
Irbe, M.
Vutukuru, S.K.
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Abstrakt
Autonomous under-water vehicles (AUV) performing a commanded task require to
utilize on-board energy sources. At the time when on-board power source runs low during
operation, the vehicle (AUV) is forced to abort the mission and to return to a charging station.
The present work proposes the technique of an energy recovery from surrounding medium. This
effect is studied for dual action actuator movement that obtains energy from fluid. It is realized
that a flapping or vibrating actuator can be used for energy extraction phenomenon apart from the
non-traditional propulsive technique. In the present work a simple dual flapping actuator that can
switch between simple flat plate and perforated plate at extreme end positions (angles) by using
an efficient mechatronic mechanism that would help in overcoming viscous forces of the
operating medium is extensively studied. The main objective of the present article is to develop
a new approach for energy gain and recharge power pack of on-board sources from the
surrounding medium and to create a robotic fish that would work autonomously by using
unconventional drive along with the possibility of energy restoration by using dual varying area
type vibrating actuator. At the time of recharge, the robotic fish would project its tail (actuator)
out of water and use surrounding medium (air) to scavenge the energy. All the equations
describing the process are formed according to classical laws of mechanics. The mechatronic
system is explained and the results obtained are discussed in detail for air as the operating fluid
to scavenge energy.
Kirjeldus
Märksõnad
energy extraction, flapping tail, robotic fish, articles