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This paper aims to design a jellyfish-inspired robot for the exploration of Venus’ atmosphere. Venus’ hostile environment necessitates different methods for planetary analysis than that of Mars or Earth. In this research, an established jellyfish-inspired drone design is modified to take advantage of Venus’ dense atmosphere for the purpose of upper atmospheric exploration. The original design uses modified Stephenson-I 6-Bar linkages to actuate a soft skin to produce thrust in a fluid, similar to the movement of a jellyfish’s bell; this research compares the original actuator design to 3 new designs based on the 6-Bar and 4-Bar linkages. In addition, a Crank mechanism to change the profile of the balloon is proposed, and the resulting effect on the drag force is compared between the original spherical profile and the modified oblong profile. These mechanisms will allow the robot to maximize its operational time in Venus’s atmosphere. In combination with the design of the jellyfish-inspired robot is the proposal of flagellate-inspired robots that rely on Venus's strong winds to power its host of sensors.more » « less
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Fill, Dominik; Strauss, Emily; Dunning, Cole; Western, Anastasia; Hassanalian, Mostafa (, AIAA SCITECH 2022 Forum)Agility, robustness, endurance, and sustainability are the main challenges of the current distributed systems for ocean objects identification. Nowadays, developing a novel marine observation network to help identify threats and to provide both an early warning and data for forecasting models is a priority of marine missions. Autonomous systems, such as underwater robots and drones, can provide worthwhile information from the ocean environment; still, they have challenges associated with endurance, performance, and recovery. Skimming drones cannot be used to perform underwater missions, need a significant amount of energy to take off, and have stability problems due to the constant ocean wave motion. As for underwater swimming robots, they are generally slow and use a significant amount of energy. To this end, there is a need to design some novel bioinspired amphibious concepts that can overcome these challenges. In this paper, a network of distributed hybrid-amphibious robots with energy harvesting capabilities will be presented. This is accomplished through novel robot systems. The Lizard-Spider Octopus-Jellyfish-Rolling Robot (LSOJRR) is one of these novel ideas, which imitates the characteristics of a Golden wheel spider with rolling, jumping, and folding capabilities over the water, a Green Basilisk lizard with running capability over the water, and an octopus with unique underwater propulsion mechanism. The LSOJRR also has applications beyond Earth, and alternative designs of this robot are explored, particularly those involving the dispersal of swarms of smaller robots that also derive their design from biology. All of the designs presented in this paper draw inspiration from nature, and strive to achieve the goal of furthering the development for marine exploration.more » « less
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