Autosub6000: a deep diving long range AUV. Buckling of multi-segment underwater pressure hull. Ceramic external pressure housings for deep sea vehicles. News from the seabed-geological characteristics and resource potential of deep-sea mineral resources. Techniques for deep sea near bottom survey using an autonomous underwater vehicle. Our work highlights the potential of designing soft, lightweight devices for use in extreme conditions.ĭanovaro, R., Corinaldesi, C., Dell’Anno, A. We validate the pressure resilience of the electronic components and soft actuators through systematic experiments and theoretical analyses. Careful design of the dielectric elastomer material used for the robot’s flapping fins allowed the robot to be actuated successfully in a field test in the Mariana Trench down to a depth of 10,900 metres and to swim freely in the South China Sea at a depth of 3,224 metres. To reduce shear stress at the interfaces between electronic components, we decentralize the electronics by increasing the distance between components or separating them from the printed circuit board. This self-powered robot eliminates the requirement for any rigid vessel. Here, inspired by the structure of a deep-sea snailfish 15, we develop an untethered soft robot for deep-sea exploration, with onboard power, control and actuation protected from pressure by integrating electronics in a silicone matrix.
However, deep-sea creatures that lack bulky or heavy pressure-tolerant systems can thrive at extreme depths 11, 12, 13, 14, 15, 16, 17. Owing to the extremely high pressure in the deep sea, rigid vessels 5, 6, 7 and pressure-compensation systems 8, 9, 10 are typically required to protect mechatronic systems. The deep sea remains the largest unknown territory on Earth because it is so difficult to explore 1, 2, 3, 4.
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