Imperial College London


Faculty of EngineeringDepartment of Aeronautics

Reader in Aerial Robotics



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BibTex format

author = {Siddall, RJD and Kovac, M and Kennedy, G},
publisher = {Springer},
title = {High Power Propulsion Strategies for Aquatic Take-off in Robotics},

RIS format (EndNote, RefMan)

AB - The ability to move between air and water with miniature robots would allow distributedwater sampling and monitoring of a variety of unstructured marine environments,such as coral reefs and coastal areas. To enable such applications, we are developing anew class of aerial-aquatic robots, called Aquatic Micro Aerial Vehicles (AquaMAVs),capable of diving into the water and returning to flight. One of the main challenges inthe development of an AquaMAV is the provision of sufficient power density for take-offfrom the water. In this paper, we present a novel system for powerful, repeatable aquaticescape using acetylene explosions in a 34 gram water jet thruster, which expels watercollected from its environment as propellant. We overcome the miniaturisation problemsof combustible fuel control and storage by generating acetylene gas from solid calciumcarbide, which is reacted with enviromental water. The produced gas is then combusted inair in a valveless combustion chamber to produce over 20N of thrust, sufficient to propelsmall robots into the air from water. The system for producing combustible gases fromsolid fuels is a very compact means of gas storage, and can be applied to other forms ofpneumatic actuation and inflatable structure deployment.
AU - Siddall,RJD
AU - Kovac,M
AU - Kennedy,G
PB - Springer
SN - 1610-7438
TI - High Power Propulsion Strategies for Aquatic Take-off in Robotics
ER -