Robotics, Automation & Control

Identifying the Flow Physics and Modeling Transient Forces on Two-Dimensional Wings

The main objective of this research was to better understand the flow physics of aircraft wings undergoing highly unsteady maneuvers. Reduced-order models play a central role in this study, both to elucidate the overall dynamical mechanisms behind various flow phenomena (such as dynamic stall and vortex shedding), and ultimately to guide flight control design for vehicles for which these unsteady phenomena are important.

Posted in: Briefs, TSP, TSP, Aerospace, Automation, Robotics, Wings, Mathematical models, Aerodynamics
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Intelligent Robotics Safeguarding

Traditional robot applications limit operator access to hazards through hard-guarding and protective devices that either detect and stop the hazard, or prevent access into the safeguarding space until the hazard no longer exists. The introduction of power- and force-limited robots used in collaborative applications changes this environment. Reduced or nonexistent hard-guarding, along with continuous motion and interaction between the robot and the operator, makes the environment inherently dynamic and uncertain. Methods to reduce risks to a tolerable level include limiting forces and speed, but these measures can yield unacceptable production rates.

Posted in: Articles, Robotics, Artificial intelligence, Artificial intelligence, Risk management, Robotics
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Today’s Advanced Hose And Hydraulic Systems

If you’re under pressure to pick the right components to keep your hydraulic hose assemblies running at peak performance—without incidents or downtime—you’re not alone.

Posted in: White Papers, Motion Control, Automation
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Interface Simplifies Remote Robot Operation

The traditional interface for remotely operating robots employs a computer screen and mouse to independently control six degrees of freedom, turning three virtual rings and adjusting arrows to get the robot into position to grab items or perform a specific task. But for someone who isn’t an expert, the ring-and-arrow system is cumbersome and error-prone. It’s not ideal, for example, for older people trying to control assistive robots at home.

Posted in: INSIDER, Motion Control, Robotics, Software
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Shaping the Future of Service Robotics

Robots emerged in the early 1960s as a way to automate the monotonous and dangerous tasks in factories around the world. As time passed and new technologies emerged, these robots have taken a place outside of the industrial market and alongside humans in manufacturing and non-manufacturing applications alike.

Posted in: White Papers, Manufacturing & Prototyping, Motion Control, Automation, Robotics
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How to Select a DC Motor: Coreless and Iron Core Brushed DC Motors

DC motors possess linear relationships that allow for very predictable operation. Motion control manufacturers and designers depend greatly on the premise that these linear relationships will hold true, since the laws of physics do not change. However, despite their simplicity, selecting a DC motor for an application can still be a daunting task. There are many other variables to take into account including dimensions, load, duty cycle, etc. This white paper provides an overview on Coreless / Brushed DC motors, and what to consider before committing.

Posted in: White Papers, Motion Control, Motors & Drives, Automation
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Mechanical Metamaterials Block Symmetry of Motion

Engineers and scientists at the University of Texas at Austin and the AMOLF institute in the Netherlands have invented mechanical metamaterials that easily transfer motion in one direction while blocking it in the other. The material can be thought of as a mechanical one-way shield that blocks energy from coming in but transmits it going out the other side. The researchers developed the nonreciprocal mechanical materials using metamaterials, which are synthetic materials with properties that cannot be found in nature.

Posted in: Briefs, Automation, Product development, Fabrication, Materials properties
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Portable Superconductivity Systems for Small Motors

Superconductivity, where electrical currents travel unhindered through a material, has many practical uses. It is used in applications extending from MRIs in hospitals to the cavities of particle accelerators. However, practical exploitation of superconductivity also presents many challenges.

Posted in: Briefs, Automation, Downsizing, Off-board vehicle charging systems, Off-board vehicle charging systems, Nuclear energy, Conductivity, Magnetic materials, Electric motors
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BiBlade Sampling Chain

The BiBlade sampler has been developed for potentially acquiring samples from the surface of a planetary body. The tool could conceivably be used in both in situ and notional sample return missions to planetary bodies including asteroids, comets, and moons. While the tool was designed for planetary sampling missions, it could have terrestrial applications as well.

Posted in: Briefs, Automation, Soils, Tools and equipment, Robotics, Test equipment and instrumentation, Spacecraft
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Six-Legged Robots Move Faster with Bipod Gate

Six-legged insects run fastest using a three-legged (tripod) gait where they have three legs on the ground at all times (two on one side of their body and one on the other). The tripod gait has long inspired engineers who design six-legged robots, but researchers at Ecole Polytechnique Fédérale de Lausanne (EPFL) and the University of Lausanne (UNIL) revealed that there is a faster way for robots to move on flat ground, provided they don't have the adhesive pads used by insects to climb walls and ceilings. Their work suggest designers of insect-inspired robots should give up the tripod-gait paradigm and consider other possibilities, including a new locomotor strategy denoted as the “bipod” gait.

Posted in: Briefs, Automation, Computer simulation, Mathematical models, Kinematics, Robotics, Biomechanics
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