Special Coverage

Technique Provides Security for Multi-Robot Systems
Bringing New Vision to Laser Material Processing Systems
NASA Tests Lasers’ Ability to Transmit Data from Space
Converting from Hydraulic Cylinders to Electric Actuators
Automating Optimization and Design Tasks Across Disciplines
Vibration Tables Shake Up Aerospace and Car Testing
Supercomputer Cooling System Uses Refrigerant to Replace Water
Computer Chips Calculate and Store in an Integrated Unit
Electron-to-Photon Communication for Quantum Computing

Composite C-Channel Incrementally Adjustable Fluid Control System

The system can be disassembled for relocation without much difficulty.

The ability to selectively adjust levels and flow rates in fluid control systems is a fundamental aspect of dredged material and fluid management, and necessary to numerous farm and industrial processes. Historically, fluid management structures such as gates and weirs offer limited options for controlling levels and volume. Installation is generally permanent, with modifications being difficult and expensive. Critical flow rate adjustments can be severely limited, and maintaining antiquated systems requires hazardous maneuvers dependent on extensive manpower.

Posted in: Briefs, Automation, Computational fluid dynamics, Composite materials, Valves, Reliability, Reliability
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Modular Climbing Robot Splits into Multiple Explorer Bots

A prototype of the Detachable Compliant Modular Robot (DCMR).

Researchers from the Robotics Research Centre at the International Institute of Technology – Hyderabad (IIIT-H), have developed a stair and obstacle climbing robot that can disassemble itself into smaller robots, and then reassemble back into one device. As a composite system, the Detachable Compliant Modular Robot (DCMR) can climb steep obstacles and staircases, and explore uneven terrain. When it detaches into multiple robots, it can explore cramped spaces, traverse flat terrain, and behave as a Multi Agent System (MAS).

Posted in: News, Motion Control, Robotics
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Commercial Drones: High-Tech Toy or Security Risk?

Although radio controlled drones provide beneficial “eye in the sky” services such as search and rescue, they also raise serious privacy and safety concerns. The growing number of affordable drones capable of carrying payloads of 100 grams up to a few kilograms has resulted in the need for effective detection and monitoring solutions.

Posted in: Dynamic White Papers, Automation, Robotics
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Will Soft Robots Improve Search-and-Rescue Operations?

University of California, San Diego researchers have demonstrated a soft robot that lifts its legs over obstacles and operates on a variety of terrains. What do you think? Will the 3D-printed quadrupedal technologies someday support search-and-rescue missions?

Posted in: Question of the Week, Automation, Robotics
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3D-Printed Soft Robot ‘Walks’ on Any Terrain

Traditional robots often feature isolated mechanical joints. These discrete components limit a rover’s ability to traverse sand, stone, and other challenging environments.

A team at the University of California San Diego has demonstrated a more flexible option: a soft robot that lifts its legs over obstacles and operates on a variety of terrains. The 3D-printed quadrupedal technology may someday support search-and-rescue missions requiring intelligent navigation capabilities.

Posted in: News, Manufacturing & Prototyping, Materials, Automation, Robotics
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Sound-Off: How are Collaborative Robots Being Used Today?

Are you seeing collaborative robots being integrated into today's production and manufacturing environments? Tech Briefs invites you to "Sound Off" on the role of "cobots."

Posted in: News, Robotics
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Human-Robot Interaction: When Robotics Meets Philosophy

To support human-robot interaction, designers are taking a page from philosophy and studying how we work together with one another.

Posted in: News, Automation, Robotics
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Exo-Brake Enables Safe Return for Small Spacecraft

The tension-based, flexible braking device resembles a cross parachute.

Posted in: Briefs, Automation, Product development, Drag, Entry, descent, and landing, Satellites, Spacecraft
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Experimental Confirmation of an Aquatic Swimming Motion Theoretically of Very Low Drag and High Efficiency

Researchers used an anguilliform swimming robot to replicate an idealized “wakeless” swimming motion.

It has been established theoretically that self-propulsion of deformable bodies in ideal fluid can occur with a careful specification of the deformation mode shape. With the fluid assumed ideal, vortex shedding, rotational wake, and induced drag would not occur. The implication is that for a real fluid, provided the existence of a thin boundary layer, similarly configured bodies with the same deformation mode shape self-propel without vortex shedding, rotational wake, and induced drag. Only viscous drag effects, due to the existence of the thin boundary layer, are present and unavoidable. The motion mode in question is the little-exploited anguilliform mode exhibited in some aquatic animal swimming. The Anguilla includes the snake, eel, lamprey, and leach, among others.

Posted in: Briefs, TSP, TSP, Aerospace, Automation, Water, Biological sciences, Robotics, Drag, Marine vehicles and equipment
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Identifying the Flow Physics and Modeling Transient Forces on Two-Dimensional Wings

Using mathematics and modeling to understand the flow physics of aircraft wings undergoing highly unsteady maneuvers.

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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