Stay updated on advancements in mechanical components and mechatronics systems. New technologies in MEMs, fluid systems, and propulsion are driving breakthroughs in transportation, electrification, autonomous driving, and manufacturing.

Fuel cells use the chemical energy of hydrogen or other fuels to efficiently produce electricity or heat with minimal byproducts, primarily water. The DOE is accepting applications for a...

Briefs: Green Design & Manufacturing
Spring Tire

A new tire is made from helical springs, requires no air or rubber, and consumes nearly zero energy. The spring tire provides greater traction in sandy and/or rocky soil, can operate in microgravity and under harsh conditions,...

Briefs: Mechanical & Fluid Systems
Plasma Igniter for Reliable Ignition of Combustion in Rocket Engines

A plasma igniter has been developed for initiating combustion in liquid-propellant rocket engines. The device propels a hot, dense plasma jet, consisting of elemental fluorine and fluorine compounds, into the combustion chamber to ignite the cold propellant mixture. The igniter...

One of the major technical problems deep-space optical communication (DSOC) systems need to solve is the isolation of the optical terminal from vibrations produced by the spacecraft...

Briefs: Mechanical & Fluid Systems
Wire Test Grip Fixture

Wire-testing issues, such as the gripping strains imposed on the wire, play a critical role in obtaining clean data. In a standard test frame fitted with flat wedge grips, the gripping action alone creates stresses on the wire specimen that cause the wire to fail at the grip location. When conventional wire grip fixtures...

News: Energy
Funding Opportunity for Vehicle Research and Development

The DOE is accepting applications for up to $184 million over three to five years to accelerate the development and deployment of new efficient vehicle technologies that will reduce U.S. dependence on foreign oil, save drivers money, and limit carbon pollution.

Renewable energy comes out of an electricity socket, but to get there it has to travel a long journey – from wind turbines out at sea or regional solar, wind, and biogas power plants....

Briefs: Mechanical & Fluid Systems
Stacked Corrugated Horn Rings

This Brief describes a method of machining and assembly when the depth of corrugations far exceeds the width and conventional machining is not practical. The horn is divided into easily machined, individual rings with shoulders to control the depth. In this specific instance, each of the corrugations is identical in...

Some refinements have been conceived for a proposed apparatus that would generate hydrogen (for use in a fuel cell) by means of chemical reactions among magnesium, magnesium...

A proposed apparatus for generating hydrogen by means of chemical reactions of magnesium and magnesium hydride with steam would exploit the same basic principles as those discussed...

Briefs: Mechanical & Fluid Systems
Ko Displacement Theory for Structural Shape Predictions

The development of the Ko displacement theory for predictions of structure deformed shapes was motivated in 2003 by the Helios flying wing, which had a 247-ft (75-m) wing span with wingtip deflections reaching 40 ft (12 m). The Helios flying wing failed in midair in June 2003, creating the...

Briefs: Mechanical & Fluid Systems
Strain System for the Motion Base Shuttle Mission Simulator

The Motion Base Shuttle Mission Simulator (MBSMS) Strain System is an innovative engineering tool used to monitor the stresses applied to the MBSMS motion platform tilt pivot frames during motion simulations in real time. The Strain System comprises hardware and software produced by...

Briefs: Robotics, Automation & Control
Pyrotechnic Actuator for Retracting Tubes Between MSL Subsystems

An apparatus, denoted the “retractuator” (a contraction of “retracting actuator”), was designed to help ensure clean separation between the cruise stage and the entry-vehicle subsystem of the Mars Science Laboratory (MSL) mission. The retractuator or an equivalent mechanism...

Check out the new issue of Lighting Technology for more new feature articles, videos, application stories, tech briefs, products, and more - all on the latest advances in LEDs and...

Strobe or rotating beacon-type emergency lighting is a requirement on all Minnesota Department of Transportation (Mn/DOT) maintenance and construction vehicles. There is an effort to...

Briefs: Mechanical & Fluid Systems
Deployment of a Curved Truss

Structures capable of deployment into complex, three-dimensional trusses have well known space technology applications such as the support of spacecraft payloads, communications antennas, radar reflectors, and...

Briefs: Mechanical & Fluid Systems
Reusable Hot-Wire Cable Cutter

During the early development stage of balloon deployment systems for missions, nichrome wire cable cutters were often used in place of pyro-actuated cutters. Typically, a nichrome wire is wrapped around a...

Briefs: Mechanical & Fluid Systems
High-Volume Airborne Fluids Handling Technologies To Fight Wildfires

NASA recently partnered with the U.S. Forest Service (USFS) on a project to examine mission suitability and recommend policies and procedures for the use of very large aerial firefighting aircraft such as the Boeing 747 and DC-10 aerial retardant delivery aircraft. The aircraft...

Briefs: Mechanical & Fluid Systems
Use of ILTV Control Laws for LaNCETS Flight Research

A report discusses the Lift and Nozzle Change Effects on Tail Shock (LaNCETS) test to investigate the effects of lift distribution and nozzle-area ratio changes on tail shock strength of an F-15 aircraft. Specific research objectives are to obtain in-flight shock strength for multiple...

(Winner of an HP Workstation)

High-Flow Lift Pump

Eric Foy

Central Point, OR

Apump is often needed, particularly in the act of...

(Winner of an HP Workstation)

Regenerative Braking Bike Front Wheel

David Swain, Frank Maurer, Jason Moore, and Albert Shih

Ann Arbor, MI

With the...

Allegro MicroSystems (Worcester, MA) offers constant current LED drivers to address requirements of internal and external illumination applications within the automotive market. Allegro’s...

Products: Energy
IR LED With Integrated Lens

The infrared DRAGON SFH 4236 from OSRAM Opto Semiconductors (Sunnyvale, CA) is designed for applications that require narrow radiation characteristics from limited board space, namely automotive applications such...

Scientists from Rice University and Lockheed Martin have discovered a way to use simple silicon to radically increase the capacity of lithium-ion batteries. The researchers are...

ROHM Semiconductor (San Diego, CA) introduces the Model BD8381EFV-M high-brightness LED driver for automotive forward illumination applications. With this flexible IC, designers can specify the same...

TRACK is a specialized controller for the All-Terrain Hex-Limbed Extra-Terrestrial Explorer Robot (ATHLETE), which has six limbs with six kinematic degrees of freedom each. TRACK is a...

Briefs: Mechanical & Fluid Systems
Self-Adjusting Liquid Injectors for Combustors

A class of self-adjusting injectors for spraying liquid oxidizers and/or fuels into combustion chambers has been proposed. The proposed injectors were originally intended for use in...

Briefs: Mechanical & Fluid Systems
Three-Wheel Brush-Wheel Sampler

A new sampler is similar to a common snow blower, but is robust and effective in sample collection. The brush wheels are arranged in a triangle shape, each driven by a brushless DC motor and planetary gearhead...

Briefs: Mechanical & Fluid Systems
Handling Qualities Prediction of an F-16XL-Based Reduced Sonic Boom Aircraft

A major goal of the Supersonics Project under NASA’s Fundamental Aeronautics program is sonic boom reduction of supersonic aircraft. An important part of this effort is development and validation of sonic boom prediction tools used in aircraft design. NASA Dryden’s...

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Protecting Power Electronics from EM and RF Interference

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Vehicle Electrification

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The Evolution of SOSA

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Next-Gen Vehicle Architectures and the Role of HPCs

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Testing Home Healthcare Medical Devices

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