Mechanical/Mechatronics

Propulsion

Latest Briefs & News

Question of the Week : Mechanical & Fluid Systems
Can a Harpoon Help with Space Clean-Up?

Once released from the International Space Station, the "RemoveDEBRIS" spacecraft will facilitate four demonstrations. One of the ideas: A harpoon. During the scheduled RemoveDEBRIS demo, the spear will be aimed at a target plate made of representative satellite materials.

Question of the Week : Robotics, Automation & Control
Will 'jet-powered' feet support search-and-rescue applications?

Tech Briefs TV this week featured research from the Guangdong University of Technology in China: A team of engineers developed a ducted-fan propulsion system that drives the legs of a bipedal robot. Watch the video, and let us know what you think.

Briefs : Propulsion
Axial Magnetic Flux Airflow Integrated Compressor-Generator-Motor Turbojet Design

Innovators at the NASA Armstrong Flight Research Center have developed a compressor-generator-motor turbojet design concept that integrates the generator with the aerodynamic blade structures of the compression section of turbomachinery. This reduces weight and...

Briefs : Propulsion
Non-Catalytic Ignition System for High-Performance Advanced Monopropellant Thrusters

Anon-catalytic pyrotechnic ignition system was developed for advanced green monopropellant systems operating with hydroxylammonium nitrate (HAN)-based monopropellant AF-M315E. This technology will provide increased performance and new operating regimes for...

Briefs : Propulsion
Thruster-Based Attitude and Translation Control with Minimum Pulse-Count Disturbance Rejection

Thruster-based control typically requires a substantial engineering effort in order to mitigate an important issue: the control system tends to use many thruster pulses to accomplish what a single thruster pulse could do instead. This fundamental...

Blog : Mechanical & Fluid Systems
HAMMER Time: A New Spacecraft Idea Aims to Ram an Asteroid Off-Course
Scientists have an idea to deflect Earth-bound asteroids: a 9-meter-tall, 8.8-ton spacecraft dubbed the HAMMER.
Briefs : Photonics/Optics
Efficient Packaging Process for One-Piece Deployable Thin Membrane

NASA’s Marshall Space Flight Center is building a small CubeSat that uses an 85-m2 solar sail deployed from a central location to capture the push of photons...

Briefs : Energy
Flexible, Gravity-Fed Heat Pipe

The advent of cryocooler technology ushers in an era where a cryogenic environment is created and maintained locally. It is no longer necessary to transport cryogen from a factory where it is produced to the...

Briefs : Mechanical & Fluid Systems
Gimbal for Steering Propelled CubeSats

NASA is preparing for the next generation of CubeSats that are propelled and will make directional maneuvers. The new gimbal mount provides a seat for the motor, and controls the position of the...

Briefs : Sensors/Data Acquisition
SolidSense: Gas Analyzer on a Chip

The SolidSense sensor platform measures all EPA-regulated gas emissions (nitrogen oxides, carbon monoxide, and hydrocarbons), in addition to ammonia, with high accuracy and sensitivity. The chip-scale gas...

News : Automotive
Will Electric Vehicles Surpass Combustion Engine Vehicles?
Is the future electric? A reader asks an expert from Mercedes-Benz.
News : Aerospace
How Model Rockets Launch Tomorrow’s Engineers
If you ask engineers about their early days, many can't avoid talking about a favorite toy: the model rocket.

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