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Robotics

(PDF) Passive Dynamic Walking

Finally, we confirmed that, with the limit cycle optimized on our NMPC, the bipedal walking robot achieves walking with energy efficiency comparable to that of past passive-dynamic-walking-based robots and of human walking.

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SafeFall: Learning Protective Control for Humanoid Robots

Upon detecting an irrecoverable fall, the system transitions from the nominal controller to a specialized mitigation policy trained to minimize impact damage. We learn this policy using PPO [17] with a reward function that explicitly models component vulnerability alongside motor mechanical ...

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Humanoid Robot Actuators: The Complete Engineering Guide

Without active cooling, it ends in one of two ways: the control system detects the temperature and shuts down the motor (thermal throttling), or the winding insulation fails and the motor is destroyed. Industrial motors solve this problem with airflow. Fans blow air across finned housings, carrying …

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Snake-arm robot - Wikipedia

University of Nottingham: Research into continuum robots for in-situ repair applications ... OC Robotics: manufacturing for the aerospace sector (automated assembly of aircraft), security (robotics for counter-terrorism), nuclear (decommissioning and asset management), and other industries (inspecti…

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An Overview of Cable‐Driven Parallel Robots: Workspace, Tension Distribution, and Cable Sagging - Tho - 2022 - Mathematical Problems in Engineering - Wiley Online Library

Richard Verhoeven and Manfred Hiller [61] provide a method for determining the cable tension of CDPRs with more than one DORs, this method is based on convex polyhedron analysis of the solution space region for the equilibrium equation. The optimal result is a solution that minimizes the tension of …

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ISO 10218 & ISO/TS 15066: Robot Safety Guide | AMD Machines

Type 3 safety laser scanners monitor 2D floor areas and support multiple configurable zones — useful for implementing speed and separation monitoring in custom robotic cells. Safety-rated speed control allows personnel to operate near the robot at reduced speed during setup, programming, and mainten…

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Series Elastic Actuators in Robotics

A Series Elastic Actuator (SEA) is an actuation system in which a compliant (elastic) element is intentionally inserted in series between a motor and its load. This design imparts controlled mechanical compliance, with substantial impact on ...

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Robotic Servicing Arm - NASA

With such a high level of maneuverability, this arm is ideally suited for missions requiring autonomous capture and dexterous operations; from grabbing a satellite for on-orbit servicing, to extracting a boulder from a spinning asteroid, to ...

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Programmable self-assembly in a thousand-robot swarm

We report a system that demonstrates programmable self-assembly of complex two-dimensional shapes with a thousand-robot swarm. This was enabled by creating autonomous robots designed to operate in large groups and to cooperate through local interactions and by developing a collective algorithm for s…

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Distributed and stretchable tactile sensing for dexterous robotic hands based on a crosslinked interpenetrating network | Science China Materials | Springer Nature Link

This design results in a thin, soft, transparent, and stretchable tactile sensor array that integrates seamlessly with a commercial dexterous hand. The sensor array exhibits high interlayer tensile strength, high sensitivity, low hysteresis, along with excellent long-term reliability over 10000 load…

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Artificial Muscles: Electrostatic Actuation and Design Tradeoffs

By combining electrostatic zipping with hydraulic pressure, jumping robots with spider-inspired electrohydraulic joints can achieve jump heights ten times their own height [9]. Other antagonistic joints can be created by pairing HASEL actuators with electrostatic clutches to achieve full ranges of m…

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