Propulsion

Power Transmission

Briefs: Mechanical & Fluid Systems
Supersonic Spike Diffuser
This diffuser provides double the pumping efficiency in one-quarter the space.
To speed up the design process, researchers from the University of Texas are finding more efficient ways to predict, or "learn," a rocket's behavior.
Altering the traditional intensity distribution of fiber lasers improves weld quality.
Beta Technologies is putting their Electrical Vertical Takeoff and Landing aircraft (eVTOL) prototype through the wringer.
The additive creates fuel from biomass while improving engine performance.
Electric motors and gas-alcohol engines could slash pollution levels and greenhouse gases from long-haul trucks.
These louvers provide passive thermal cooling for CubeSats.
Special Reports: Transportation
CONEXPO/IFPE - January 2020

Coming to Las Vegas in March, CONEXPO-CON/AGG and IFPE are North America's largest events for the construction/commercial vehicle, fluid power, power transmission, and motion control industries. In this Special...

Special Reports: Power
Vehicle Electrification - January 2020

Demand for electric vehicles is accelerating, presenting new design, manufacturing, and infrastructure challenges. To help you keep pace with the rapid changes in vehicle electrification technology, we...

Briefs: Electronics & Computers
Superconductivity in a Nickel Oxide Material
Made with “Jenga chemistry,” the material could help in understanding how high-temperature superconductors work.
Briefs: Electronics & Computers
Metallization for SiC Semiconductors
This technology provides simultaneous ohmic contacts and the process to make them.
NASA Armstrong flight-tests some of the nation’s most unique aircraft and aeronautical systems.
Blog: Sensors/Data Acquisition
By the Lake, a Flying-Fish Robot Takes Off

A lake is usually a picture of serenity, perhaps the last place you’d expect to find a flying-fish robot launching itself 85 feet in the air.

Briefs: Robotics, Automation & Control
Microrobots Activated by Laser Pulses for Treating Tumors

Microrobots that can deliver drugs to specific spots inside the body while being monitored and controlled from outside the body have been developed that also can treat tumors in the...

Articles: Manufacturing & Prototyping
The Many Uses of Inductive Position Sensors in the IIoT
We interviewed an industry expert about the role of inductive position sensors in the IIoT.
Technology Leaders: Electronics & Computers
Module or Discrete Power?

Engineers today are feeling the pressure to get more done in less time, be experts in multiple disciplines, and use their resources more efficiently to maximize profits. This environment is shifting the way...

Briefs: Transportation
Inductive Power Transfer for Spaceflight Systems

NASA Goddard Space Flight Center has developed technology that uses inductive power transfer (IPT) for wireless power interfaces between spaceflight elements (such as the payload, vehicle, and pad). Current spaceflight systems require traditional hardwire connections for power interfaces. This...

The Moon is a treasure chest of science. The lunar samples returned during the Apollo program dramatically changed our view of the solar system, yet they just scratch the...

Articles: Propulsion
Pneumatics for Mechanical Motion

Employing fluid power to achieve mechanical motion can be implemented via hydraulics using uncompressible liquids or via pneumatics using compressible gasses; typically, air. The latter provides several...

Briefs: Electronics & Computers
Double-Fed Induction Linear Alternator

This technology was developed to address the limitations of traditional, single-fed linear alternators that require permanent magnets, adhesive bonding organics, and heavy iron laminations for flux control. They experience eddy-current losses and require electromagnetic interference protection. Furthermore,...

Briefs: Sensors/Data Acquisition
Generating Electrical Power from Waste Heat

Directly converting electrical power to heat is easy; however, converting heat into electrical power is not as easy. To address this issue, a tiny silicon-based device was developed that can...

Briefs: Motion Control
Improved Directed Flux Motor

Electromagnetic motors typically convert electrical energy into rotational mechanical energy and are employed across a wide array of applications. While motors represent relatively mature technology, practitioners continue to seek ways to enhance motor operation including a decrease in cost, drop in size/weight,...

Special Reports: Automotive
Vehicle Electrification - June 2019

Demand for electric vehicles is accelerating, with several automakers announcing that their entire lineups will either be hybrid or all-electric by the 2020's. To help you keep pace with the rapid changes...

Three new unmanned helicopters were unveiled at AUVSI’s XPONENTIAL show in Chicago.
As always, the Air Force Research Laboratory had a huge presence at AUVSI’s XPONENTIAL show in Chicago.
You think riding your Harley Davidson is exciting? Try the ElectraFly.
Briefs: Electronics & Computers
Transforming Flat Elastomers into 3D Shapes

Mechanical systems such as engines and motors rely on two principal types of motions of stiff components: linear motion, which involves an object moving from one point to another in a straight...

Making electric cars lighter also involves reducing the weight of the motor. One way to do that is by constructing it from fiber-reinforced polymer materials. A new cooling concept...

Recent technical advances have enabled flywheel energy storage systems (FESS) to become more compact and able to support higher-power applications. Due to their proven...

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