Mechanical/Mechatronics

Mechanical & Fluid Systems

Briefs : Mechanical & Fluid Systems
Sandia Cooler

Heat exchangers are used for the transfer of heat between two or more media. The media may be separated by a solid wall so that they never mix, or they may be in direct contact. Heat exchangers may be used in HVAC systems, power plants, and mechanical devices and systems that require heat transfer. Examples of systems where heat...

Briefs : Mechanical & Fluid Systems
Ruck Dock Load Carriage Connector System

Soldiers, civilians engaged in activities such as hiking, and public safety personnel engaged in search and rescue missions all require reliable systems for the effective carriage of necessary equipment. The most simplistic backpacks and rucksacks often do not incorporate a frame or other rigid...

Briefs : Mechanical & Fluid Systems
Reducing Inaccuracies in Force/Haptic Feedback Systems

Researchers at NASA's Armstrong Flight Research Center have developed a new technology to reduce inaccuracies in force/haptic feedback devices and systems. Used at NASA in aircraft simulations for force feedback pilot controls, these systems involve a servomotor applying precise force to a...

INSIDER : Manufacturing & Prototyping
Electromagnetic Actuator Decouples Linear and Rotary Motions

A lightweight module for rapid, accurate, and versatile positioning of semiconductor chips features a novel electromechanical actuator that can move objects both linearly and...

INSIDER : Motion Control
3D Printed Tensegrity Object Can Change Shape

A team of researchers from the Georgia Institute of Technology has developed a way to use 3D printers to create objects capable of shape change. The objects use tensegrity, a structural system of floating rods in compression and cables in continuous tension. The researchers fabricated the struts from...

White Papers : Mechanical & Fluid Systems
The Ultimate Shaft-To-Hub Connection

Kinematically ground polygonal shapes have been used as drive connections for more than 45 years. What is now referred to as Polygon Systems was developed by Fortunawerke, Stuttgart, West Germany, who patented a grinding machine capable of producing matched polygonal shaft and bore diameters.

Articles : Mechanical & Fluid Systems
MEMS Move Wearables Beyond Touch Interfaces

We use touch, the dominant user interface for years, to tap keyboards on laptops and tablets, to communicate with our car’s portable GPS, and to text friends and take photos from our smartphones.

Briefs : Mechanical & Fluid Systems
Low-Pressure Plasma Cleaning of Aerospace Components Using Breathing/Compressed Air

A method for precision cleaning of aerospace components is needed that does not use hazardous or environmentally harmful commodities. Historically, precision cleaning methods have utilized solvents that have contributed to the depletion of the ozone layer or had...

Briefs : Mechanical & Fluid Systems
Chain Drive Dust Conveyer

The Mars 2020 coring drill will generate a significant amount of dust and debris (known as fines) due to the volume of milled material displaced by the corer's annulus. These cuttings must be removed to ensure that the drill does not jam. The typical method involves fluids, which may not work on Mars due to the...

Briefs : Mechanical & Fluid Systems
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...

Briefs : Mechanical & Fluid Systems
Micro Acoustic Resonant Chambers for Heating/Agitating/Mixing (MARCHAM)

To measure organics in a fluid sample, one either has to bring the sample in the form of a colloid to the instrument, or extract the organics from the sample and bring the liquid extract to the instrument. The disclosed technique enables both extraction and transport of the...

Briefs : Motion Control
Advanced Tool Drive System (ATDS) Camera Positioning Mechanism (CPM)

Robotic servicing of a satellite in low earth orbit (LEO) or geosynchronous Earth orbit (GEO) requires advanced systems capable of meeting the harsh environments of space. To support this effort, the Goddard Space Flight Center Satellite Servicing Capabilities Office (SSCO) has...

Briefs : Mechanical & Fluid Systems
Compact, Lightweight Trap Vent

This compact, lightweight trap vent is used to minimize the pressure differential of a high-altitude, balloon-borne detector. The vent allows the pressure to equalize rapidly, yet does not allow any light to enter the detector.

INSIDER : Motion Control
Mechanical Actuators Bend as They “Breathe”

Extreme temperatures can severely strain a mechanical component because its material may have trouble enduring the heat without degrading. To address the problem, researchers at MIT developed a new material that expands and contracts as it lets oxygen in and out. The result is a new way to make...

Briefs : Mechanical & Fluid Systems
Robust, Highly Efficient Oxygen-Carbon Monoxide Cogeneration System

Oxygen, water, and fuel are of paramount importance to human life. As a leading concept, the solid-oxide electrolysis cell (SOEC) is a very powerful technology, especially in aiding NASA's endeavors to pursue extraterrestrial exploration missions. This work focused on developing...

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