Mechanical/​Mechatronics

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

Briefs : Mechanical & Fluid Systems
Shape Memory Alloy Rock Splitters (SMARS)

Glenn's revolutionary Shape Memory Alloy Rock Splitters (SMARS) device is fabricated from nickel-titanium-halfnium (NiTiHf), nickel-titanium-zirconium compositions, or a combination. These compositions contain a secondary, nanometer-sized precipitate phase that is produced through processes of...

Briefs : Mechanical & Fluid Systems
Ducted Fuel Injection for Soot Reduction

Typical direct-injection engines, such as diesel engines, can produce soot due to fuel-rich combustion conditions. Filters and catalytic converters are currently used to reduce soot and harmful...

Briefs : Mechanical & Fluid Systems
Ultralight Gloves Provide Realistic Haptic Feedback

Engineers and software developers are seeking to create technology that lets users touch, grasp, and manipulate virtual objects while feeling like they are actually touching something in...

Briefs : Mechanical & Fluid Systems
SHEAth-based Rollable LEnticular-Shaped and Low-Stiction (SHEARLESS) Composite Booms

NASA's Langley Research Center has developed the SHEARLESS composite boom with a final cross-section shape that is lenticular and is flexible enough to...

Briefs : Mechanical & Fluid Systems
Variable-Pitch Turbine Blades

Gas turbine blades of conventional rotorcraft turboshaft engines are optimized to operate at nearly a fixed speed and a fixed incidence angle. If the operating condition of the engine changes, then the flow...

Briefs : Mechanical & Fluid Systems
System Makes Opaque Materials Totally Transparent

Most naturally occurring materials have a disordered atomic structure that interferes with the propagation of both sound and electromagnetic waves. When the waves come into contact with these...

Briefs : Mechanical & Fluid Systems
Submarine Swims Without an Engine

Researchers have developed a new propulsion concept for swimming robots that exploits temperature fluctuations in the water for propulsion without the need for an engine, propellant, or power supply.

Briefs : Mechanical & Fluid Systems
Reusable Breakaway Mounting Device

Breakaway devices are used to mount objects to systems or structures (for example, cars, drones, helmets, buildings) and prevent damage when the objects fall away from the system. Unfortunately, even in ideal scenarios, many of these devices have limitations. Breakaway bolts and shear pins have the complication...

Briefs : Mechanical & Fluid Systems
A New Twist Makes Rotating Machinery More Efficient and Quieter

Derived from a design approach for a new wing known as PRANDTL-D, this technology achieves similar improvements for propellers and other rotating machinery.

Briefs : Materials
Piezoelectric Resonator with Two Layers

Microelectromechanical systems (MEMS) filters have advantages in being able to reduce the size, weight, and power required when used as part of electronic systems such as radios; however, MEMS-type filters have limitations. For example, thickness MEMS-type filters (e.g., thickness-extensional mode...

Briefs : Sensors/Data Acquisition
Method Trains Robots to Collaborate Through Demonstration

Robots that are adapted to respond to physical human-robot interaction (pHRI) traditionally treat such interactions as disturbances, and resume their original behaviors when the...

Briefs : Transportation
Photonic Communication Comes to Computer Chips

With novel optoelectronic chips and a new partnership with a top silicon-chip manufacturer, MIT spinout Ayar Labs aims to increase speed and reduce energy consumption in computing, starting with...

Briefs : Medical
Popcorn-Driven Robotic Actuators

When heated, popcorn can expand more than 10 times in size, change its viscosity by a factor of 10, and transition from regular to highly irregular granules with surprising force. These unique qualities can...

Briefs : Sensors/Data Acquisition
Acoustic Beamforming Array Using Feedback-Controlled Microphones for Tuning and Self-Matching of Frequency Response

NASA's Langley Research Center, in collaboration with Michigan State University (MSU), has developed a microphone array that...

Briefs : Test & Measurement
Optical Mass Sensor for Multi-Phase Flows

NASA's Marshall Space Flight Center is offering opportunities for its new fiber optic mass flow sensor system. Capable of measuring multi-phase flows in a pipe, the technology is minimally invasive,...

Briefs : Materials
Engineering Soft Materials that Mimic Neural Tissue

A process for engineering next-generation soft materials with embedded chemical networks that mimic the behavior of neural tissue lays the foundation for soft active matter with highly...

Briefs : Sensors/Data Acquisition
Polymer Nanofiber-Based Reversible Nano-Switch/Sensor Schottky Diode (nanoSSSD) Device

Innovators at NASA's Glenn Research Center have developed a unique nano-structure device that operates as a nano-switch/sensor for detecting toxic gases and ultraviolet (UV) radiation. Conventional microsensors are limited by their short life, high cost and...

Briefs : Semiconductors & ICs
Hybrid Silicone-Fabric Sensor for Wearable Robots

Wearable technologies are exploding in popularity in both the consumer and research spaces, but most of the electronic sensors that detect and transmit data from wearables are made of hard,...

Briefs : Semiconductors & ICs
Evaluating Effects of Exhaust Heat Recovery Systems on Fuel Economy and Emissions

The exhaust heat recovery system (EHRS) in an automobile captures the thermal energy from exhaust and transfers it to the engine coolant. As the car warms up,...

Briefs : Aerospace
Air Traffic Management (ATM) System

As the demand for air transportation increases, the capacity of the current U.S. ATM system will eventually be stressed to its limits. New technologies in communication, navigation, and surveillance (CNS),...

Briefs : Test & Measurement
Nano/Micro Mechanical Environmental Test Cell

A device and method have been developed to conduct compression and tensile tests on soft materials such as flocculated sediments, biopolymers, biological materials, and food stuffs. The device...

Briefs : Test & Measurement
Microtesting Rig

The measurement of mechanical behavior in very small samples whose dimensions are on the order of microns and below can offer advantages over conventional macroscopic testing in many instances. Motivations for investigating...

Briefs : Materials
High-Kinetic-Energy Penetrator Shielding and High-Wear-Resistance Materials Fabricated with Boron Nitride Nanotubes and BNNT Polymer Composites

In recent years, anti-penetration materials have been more widely used for armor, bulletproof vests, and micrometeoroid and orbital debris protection layers for space-suits, space vehicles, and...

Briefs : Mechanical & Fluid Systems
3D-Printed Active Materials for Robots

The Army uses robots that are structurally rigid, making them impractical when performing military operations in highly congested and contested urban environments where covert maneuvering is critical...

Briefs : Aerospace
Carbon Dioxide Collection and Pressurization Technology

Mars is the ultimate destination for NASA's human exploration program. In Situ Resource Utilization (ISRU) is a key technology required to enable such missions. The goals of using resources available at the exploration site are to reduce launch and delivered mass, reduce risk and cost,...

Briefs : Mechanical & Fluid Systems
Piezoelectric Thrust Vector Control for Hall Effect Thruster

The design of the CubeSat required precision pointing of the thrust vector through the spacecraft center of gravity to minimize fuel usage for attitude correction. Because the center of gravity shifts over the course of the mission, a means of adjusting the thrust vector was needed....

Briefs : Electronics & Computers
Researchers Create Precision Optical Components with Inkjet Printing

Researchers have developed an inkjet printing technique that can be used to print optical components such as waveguides. Because the printing approach can also fabricate...

Briefs : Transportation
Active Measurement Cancellation

A battery pack is only as strong as its weakest cell. As battery packs become larger and more integral to the stable operation of devices and systems, the need to monitor battery dependability and performance...

Briefs : Test & Measurement
Direct-Current Detector for Emergency Responder Safety

The Department of Energy's Oak Ridge National Laboratory has developed a direct-current detector technology to help emergency responders safely detect high voltages, which they have...

Briefs : Sensors/Data Acquisition
Realization of High-Performance Magnetic Sensors Using Magnetic Vortex Structures

Magnetic sensors play a key role in a variety of applications, such as speed and position sensing in the automotive industry and in biomedical applications....