Sign In

Communications of the ACM

ACM TechNews

Toughest Known Structure Discovered by Autonomous Robot Lab

View as: Print Mobile App Share:
The Bayesian experimental autonomous researcher (BEAR), a robotic laboratory.

The robotic laboratory can produce and test mechanical structures without human supervision.

Credit: Aldair E. Gongora and Bowen Xu

The Bayesian experimental autonomous researcher (BEAR) robotics laboratory at Canada's University of Toronto has discovered the most energy-absorbent mechanical structure ever.

Boston University's Keith Brown said he and his colleagues built a system that designs and tests mechanical structures, then designs and tests additional structures based on those results.

BEAR includes five three-dimensional printers that can fabricate seven different types of plastics, a set of scales, a testing machine that compresses and measures the response of each plastic-produced structure, and a robotic arm and a computer vision system to manipulate samples.

The researchers found a structure dubbed Willow exhibited 73.3% average energy-absorbing efficiency, beating balsa wood's 71.8% efficiency, when made from the PLA variety of polyester.

From New Scientist
View Full Article


Abstracts Copyright © 2023 SmithBucklin, Washington, D.C., USA


No entries found

Sign In for Full Access
» Forgot Password? » Create an ACM Web Account