Robotics breakthrough: lightweight components for electrohydraulic bot

RAMAT GAN, Israel - June 28, 2021 - PRLog -- Their limbs possess hydraulic actuation whenever movement is observed, driving further ideas for researchers on how they can be replicated and applied to robotics.

With the collaboration from the University of Boulder in Colorado in US and the Max Planck Institute for Intelligent Systems in Germany, a team of researchers successfully gained a breakthrough on how to replicate the spider joints, minus the bulky components that has always reduced the efficiency and speed of the robot itself. Their research, Spider-inspired electrohydraulic actuators for fast, soft-actuated joints, allows a robot to be lightweight and slender which impressed people related to the field, and it was published in Advanced Science.

The highlight of their research, the Spider-inspired Electrohydraulic Soft-actuated joints, or SES joints, are not just limited for arachno-bot. Their research paper implied that it can be used in different multiple configurations, as they demonstrate it being comprised of a bidirectional join, an artificial limb that possesses multiple segments and a three-fingered gripper that can accommodate handling of delicate objects.

All components used for the artificial limb are lightweight, with simplistic designs and shows high-performance, indicating that it is well suited for robotic systems that require quick mobility and the adaptability to different environments.

This research was a product of the HASEL technology, which was also invented by the same team, that focuses on developing an artificial muscle that can mimic organic ones. The SES joints are also comprised of both soft and rigid elements, mimicking the exoskeleton of a real spider to maximize manoeuvrability and lightness without compromising its speed.

This research is a huge advancement as the application of the SES joints are already envisioned by the people on the same field. This advantage is greatly emphasized especially on the smaller robotic systems that that less than a meter in size. The actuator technology offered by the SES joint will definitely become very handy and its application being viewed as limitless.

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