Mechanical & Fluid Systems

Access our comprehensive library of technical briefs on mechanical and fluid systems, from engineering experts at NASA and government, university, and commercial laboratories.

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Briefs: Materials
Existing optics mounts sandwich the optic axially between two metal components, which can lead to optical surface damage and misalignment when exposed to fluctuating temperatures. Thermal-compensating optics...
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Briefs: Nanotechnology
Existing nanosensor technologies depend on an external power source (typically a battery) to operate. Chemical and biological sensors based on nanowire or nanotube technologies exhibit...
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Briefs: Materials
Liquid droplets are used in many applications, from printing ink on paper to creating microcapsules for drug delivery. Inkjet printing is the most common technique used to...
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Briefs: Aerospace
Plasma Generator Using Spiral Conductors
NASA's Langley Research Center has developed a patented SansEC sensor technology for use in many different areas, including tall structures and wind turbines. The SansEC technology is a proven wireless sensing platform capable of measuring the electrical impedance of physical matter in proximity to the...
Briefs: Software
Lateral nozzle forces are known to cause severe structural damage during testing of any new rocket engine configuration under development. While three-dimensional computational fluid dynamics (CFD)...
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Briefs: Transportation
RTM370 imide resin was developed to address the limitations of conventional imide resins, which are generated from commercially available symmetrical biphenyl dianhydride...
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Briefs: Robotics, Automation & Control
Researchers have created a two-dimensional, shape-changing sheet that moves autonomously in a reactant-filled fluid. The integrated system utilizes a chemical reaction to activate the fluid...
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Briefs: Mechanical & Fluid Systems
Jet engines can have up to 25,000 individual parts, making regular maintenance a tedious task that can take more than a month per engine. Many components are located deep inside...
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Briefs: Medical
A novel foot-pedal-operated system and device were developed to control translational and rotational movement of an object in three-dimensional (3D) space. The Foot Pedal Controller system enables operators to control...
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Briefs: Robotics, Automation & Control
Hundreds of small robots can work in a team to create biology-inspired shapes without an underlying master plan, purely based on local communication and movement. To achieve this, the biological principles...
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Briefs: Sensors/Data Acquisition
Researchers have developed a new ultrasound transducer that could dramatically lower the cost of ultrasound scanners to as little as $100. Conventional ultrasound scanners use piezoelectric crystals to...
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Briefs: Mechanical & Fluid Systems
Innovators at NASA's Glenn Research Center have designed a superior seal assembly that is durable and highly dependable in extremely harsh environments. This...
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Briefs: Aerospace
Vertical Take Off and Landing (VTOL) Aircraft with Vectored Thrust for Control and Continuously Variable Pitch Attitude in Hover
Most fixed-wing VTOL unmanned aerial vehicles (UAVs) take off vertically, then transition to horizontal flight. This is a new type of UAV that has unique capability. It can vary its hover position from “nose up”...
Briefs: Mechanical & Fluid Systems
In biology, there are many examples where light induces movement or change — think of flowers and leaves turning toward sunlight. Magnetic elastomeric composites were developed that move in different ways...
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Briefs: Mechanical & Fluid Systems
A low-cost 3D bioprinter was built by modifying a standard desktop 3D printer with a syringe-based, large volume extruder (LVE). The extruder works with most open-source fused deposition modeling (FDM)...
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Briefs: Semiconductors & ICs
A technique was developed that uses a specially adapted 3D printer to build therapeutic biomaterials from multiple materials. The advance could be a step toward on-demand printing of complex...
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Briefs: Electronics & Computers
Composite Material Cools Itself Down Under Extreme Temperatures
A material, inspired by nature, can regulate its own temperature and could be used to treat burns and help space capsules withstand atmospheric forces. The research used a network of multiple microchannels with active flowing fluids (fluidics) as a method and proof-of-concept to...
Briefs: Mechanical & Fluid Systems
Pulsed laser vaporization (PLV) production of single-wall carbon nanotubes (SWNTs) on traditional Co/Ni catalyst was explored with respect...
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Briefs: Manufacturing & Prototyping
For many highly stressed engineering applications like bearings and gears, contaminated steel parts can lead to devastating outcomes such as an emergency shutdown or the end of a mission. Ensuring that these critical...
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Briefs: Mechanical & Fluid Systems
Infrared motion detectors can cover only a limited amount of space, a person has to be within the detector's line of sight to be detected, and lights can go off when a person remains still...
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Briefs: Mechanical & Fluid Systems
NASA's Glenn Research Center developed a novel means of articulating the outboard portion of an aircraft wing to create the optimal geometry for given flight conditions. The Spanwise Adaptive Wing (SAW) concept employs a...
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Briefs: Mechanical & Fluid Systems
Researchers have developed a customizable soft robot that fits around a heart and helps it beat, potentially opening new treatment options for people suffering from heart failure.
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Briefs: Medical
Soft, 3D-printed structures have been created whose movements can be controlled with a wave of a magnet, much like marionettes without the strings. The structures that can be magnetically manipulated...
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Briefs: Mechanical & Fluid Systems
Check valves are traditionally designed as a simple poppet/spring system where the spring is designed to equal the force created from the sealing area of the valve seat multiplied by the...
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Briefs: Test & Measurement
Automated Fiber Placement (AFP) machines can be susceptible to tow-tape defects such as gaps and overlaps. These can reduce strength between 7% and 32%....
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Briefs: Mechanical & Fluid Systems
Lamina emergent compliant mechanisms (including origami-adapted compliant mechanisms) are mechanical devices that can be fabricated from a planar material (a lamina) and have motion that...
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Briefs: Robotics, Automation & Control
Painting of surfaces having numerous facets and/or curved surfaces is a time-consuming process that requires the application of several coats (layers) of paint. Such surfaces are often found on...
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Briefs: Photonics/Optics
3D printing allows for the efficient manufacture of complex geometries. A very promising method is direct laser writing in which a computer-controlled focused laser beam acts as a pen and produces the desired...
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Briefs: Sensors/Data Acquisition
Gyroscopes are devices that help vehicles, drones, and wearable and handheld electronic devices know their orientation in three-dimensional space. Originally, gyroscopes were sets of nested wheels, each spinning on a...
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