Inspired by nature, these soft robots received their amphibious upgrade with the help of bistable actuators.
fitted in the corners of a body equal to the size of a cell phone made of two bistable actuators. On land, these bent actuators act as legs, allowing the robot to walk. In the water, the bistable actuators change the robot’s shape, which puts the curve actuators in a perfect position to behave like propellers helping it swim.
"You need to have legs to walk on land, and you need to have a propeller to swim in the water. Building a robot with separate systems designed for each environment adds complexity and weight," said Xiaonan Huang, an assistant professor of robotics at the University of Michigan and Majidi's former Ph.D. student. "We use the same system for both environments to create an efficient robot.
"There are many interesting and exciting scenarios where energy-efficient and versatile robots like this could be useful," said
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