Propulsion

Propulsion

Testing has started at NASA on a concept called the Heliopause Electrostatic Rapid Transit System (HERTS), a propellant-less propulsion system that would harness solar wind to travel...

There are difficulties related to storing enough gas to propel a CubeSat within an onboard tank. Currently, a CubeSat requiring a large volume of gas for extended...

This technology is based on a model-scale experiment simulating a test facility where an engine exhaust is discharged into a duct....

Briefs: Aerospace
Reynolds-Averaged Navier-Stokes Integration for Shock Noise (RISN)

Reynolds-averaged Navier-Stokes (RANS) Integration for Shock- Noise (RISN) is a computer program that evaluates acoustic analogies to predict jet noise. Jet noise is due to turbulence from the chaotic flow within the exhaust of a rocket or air-breathing jet engine. The source of...

Briefs: Aerospace
Regeneratively Cooled Porous Media Jacket

A non-toxic nitrous oxide fuel blend (NOFB) monopropellant with a high adiabatic flame temperature reaching and probably exceeding 3,450 K and a very high thermal decomposition limit (>390 °C) is under development. To design an optimal rocket engine that can handle the high adiabatic temperature...

Briefs: Aerospace
Multi-Pulse Motor (MPM) Designed for Use with Electric Solid Propellants

The multi-pulse motor is a solid-propellant rocket motor that is able to produce a number of pulses for various thrust levels (5 to 30 pulses and thrusts between 0.25 and 1.5 N, depending on electric power delivery system) and can be turned on and off through the...

Briefs: Aerospace
Adaptive Augmenting Control

Adaptive augmenting control (AAC) is a forward gain, multiplicative adaptive algorithm for launch vehicle flight control that meets three summary-level design objectives: Do no harm — return to baseline control design when not needed; respond to errors in the ability of the vehicle to track commands to increase...

NASA is researching ideas that could lead to developing an electric propulsion-powered aircraft that would be quieter, more efficient, and more environmentally friendly than today's...

Just as hybrid or turboelectric power has improved fuel efficiency in cars, boats and trains, aeronautical engineers are exploring how planes can be redesigned and configured...

News: Medical
Researchers Use Rust to Improve 3D-Printing Process

A team of Northwestern researchers has created a new way to print three-dimensional metallic objects using rust and metal powders.

The European Space Agency’s LISA Pathfinder spacecraft is on its way to space with the Disturbance Reduction System (DRS), a thruster technology developed at NASA's Jet Propulsion Laboratory....

The propulsion subsystem for NASA's Green Propellant Infusion Mission (GPIM) has been integrated onto the spacecraft, moving the mission another major step toward scheduled launch in...

To stay in the proper orbit, many satellites have thrusters – small rocket engines – that fire to change altitude or orientation in space. On Earth, where gravity dominates, five pounds of...

Researchers at the University of Georgia are helping NASA determine if a key rocket component can withstand the rigors of the next generation of spaceflight. The bellows...

Briefs: Nanotechnology
Pyramid Micro-Electrofluidic-Spray Propulsion Thruster with Integrated Attitude and Thrust Vector Control

A micro-electrofluidic-spray propulsion (MEP) system was built on a micro scale, in which arrays of hundreds of nano-thrusters are etched on silicon wafers like ICs, only a centimeter on a side. Many dozens of these thruster chips can be...

Briefs: Motion Control
Evaluation of Rail Gun Technology for Launch Assist of Air-Breathing Rockets

A prototype horizontal electromagnetic rail launcher has been demonstrated along with a corresponding theory. This system builds out of published work in augmented rail guns, but modifies this technology so that the motor can operate for seconds rather than...

Briefs: Robotics, Automation & Control
Using Harmonics to Control Flutter in Wings with Electrical Motors

As aeronautics engineers develop innovative distributed electric propulsion systems, they face new challenges in ensuring that these innovative aircraft are safe as well as fuel efficient. In particular, these systems involve a large number of electrically driven fan motors...

Briefs: Motion Control
Micropulse Detonation Rocket Engine for Nano-Satellite Propulsion

An efficient propulsion system would use a micropulse detonation rocket engine (–PDRE) for nano-satellite maneuverability in space. Technical objectives are to design, build, and conduct a small detonation tube experiment in order to explore the feasibility of using –PDRE for...

Briefs: Motion Control
Experimental Testbed for 1-MW Turboelectric Distributed Propulsion Aircraft

Researchers at NASA’s Armstrong Flight Research Center are developing a concept aircraft for testing turbo-electric distributed propulsion (TeDP) experiments. TeDP generally involves providing thrust to an aircraft via wing-mounted ducted electric fans, which consist...

Complex pressure systems are utilized during testing in the propulsion branch as well as during the propellant loading stage of a mission. Keeping track of the state of such a system becomes more...

The Sunjammer Mission team — including NASA, lead contractor L’Garde, Space Services Holdings (SSHI), and Micro Aerospace Solutions — is preparing to launch Sunjammer, the...

Application Briefs: Propulsion
Cryogenic Turbines Aid NASA’s Morpheus Lander

Turbines, Inc., a designer and manufacturer of turbine flow metering technology, has assisted NASA with its Morpheus Lander project. Project Morpheus, a vertical testbed, demonstrates new...

Orbital Technologies Corp. (ORBITEC) of Madison, WI, has been a longtime NASA partner, working with the Agency on numerous projects, many through the Small Business Innovation Research (SBIR)...

Application Briefs: Propulsion
Simulated Models Test Design of Space Shuttles and Rocket Engines
Finite element modeling and analysis
Dynamic Concepts
Huntsville, AL
256-922-9888
www.dynamic-concepts.com

NASA tasked Dynamic Concepts (DCI) with assessing the structural dynamics of the rollout process, whereby the space shuttle orbiter, external tank,...

Cold Gas Micro Thruster (CGMT)
Marotta Controls
Montville, NJ
973-334-7800
www.marotta.com
Briefs: Motion Control
Hybrid Propulsion System for Returning a Sample From Mars

A paper suggests the development of a hybrid rocket engine and associated equipment for returning a sample of material from Mars at relatively low cost. In a hybrid rocket engine, a solid fuel is burned by use of a liquid or gaseous oxidizer, the flow of which can be throttled to control...

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