Home

Improved Ground Collision Avoidance System (iGCAS)

Researchers at NASA’s Armstrong Flight Research Center have dramatically improved upon existing ground collision avoidance technology for aircraft. NASA’s system leverages leading-edge fighter safety technology, adapting it to civil aviation use as an advanced warning system. It offers higher fidelity terrain mapping, enhanced vehicle performance modeling, multidirectional avoidance techniques, more efficient data-handling methods, and user-friendly warning systems. The algorithms have been incorporated into an app for tablet/handheld mobile devices that can be used by pilots in the cockpit, enabling significantly safer general aviation. This will enable pilots to have access to this lifesaving safety tool regardless of what type of aircraft they are flying. The system also can be incorporated into electronic flight bags (EFBs) and/or aircraft avionics systems.

Posted in: Briefs, Aeronautics, Aerospace

Read More >>

Aerodynamically Stabilized Instrument Platform

This low-altitude remote-sensing device is designed for agricultural and environmental research.The AeroPod, developed at NASA Goddard Space Flight Center’s Wallops Flight Facility, is a passive device that uses aerodynamic forces to stabilize an instrument package suspended from a kite or tethered blimp. The AeroPod’s design for steadying and damping payloads includes the use of a tail boom and fin combination. It is a novel design and provides a relatively simple alternative to the traditional methods for suspending equipment from kites or blimps. It is a low-altitude custom remote sensing platform craft designed for, but not limited to, agricultural and environmental research purposes. AeroPods can be used for a variety of remote sensing and in-situ observations.

Posted in: Briefs, Aeronautics, Aerospace

Read More >>

Energy-Absorbing Beam Member

Potential applications include aircraft, rotorcraft, spacecraft re-entry vehicles, automobiles, and packaging containers.NASA’s Langley Research Center has developed a novel design for a lightweight energy absorbing (EA) composite subfloor structure. The technology’s primary application is to increase occupant survivability in the event of an aircraft crash. Current airframe subfloors unpredictably buckle, splay, and collapse under crash loads. This technology exploits the inherent stability associated with a conusoidal geometry and material combination of carbon and aramid fibers to allow the structure to bend and fold in a controlled manner at a particular load level.

Posted in: Briefs, Aeronautics, Aerospace

Read More >>

Wet Active Chevron Nozzle for Controllable Jet Noise Reduction

The noise-reduction system makes use of injectors placed on the inside trailing edge of a jet engine nozzle.NASA’s Langley Research Center researchers have developed a novel noise reduction system for jet engines. Aircraft jet engine noise is a major issue for airports, the communities near airports, and, of course, for the jet engine designers. Even with the use of recent high-bypass-ratio jet engine designs, noise continues to be a major concern. The present innovation represents a significant advancement to the concept of using mechanically fixed chevrons on the trailing edge of jet engine nozzles to reduce noise. While the effect of chevrons on noise reduction is well known, commercial implementation has been limited. Unfortunately, the turbulence created with the chevrons, while useful for reducing noise upon takeoff, serves to reduce efficiency during cruising. The present innovation is a simple noise reduction system with effects similar to that of chevrons, yet it is active and controllable to maximize noise reduction while maintaining efficiency.

Posted in: Briefs, Aeronautics, Aerospace

Read More >>

Improvements to the Functional Beamforming Formula

The purpose of this work is to improve the signal-to-noise ratio of acoustic measurements made in a wind tunnel with a microphone phased array. The functional beamforming method is improved to compensate for effects of acoustic propagation through turbulence, and to correct for inaccurate steering vectors. This increases the accuracy with which acoustic measurements can be made in a non-acoustic or acoustic wind tunnel.

Posted in: Briefs, Aeronautics, Aerospace

Read More >>

Aerofoam

This foam composite insulation can be optimized for different material properties.Aerofoam is a unique foam composite insulation with improved thermal and acoustic insulation properties. The novelty of this invention comes from combining a polymer foam with a unique inorganic filler in a way that maximizes thermal performance while maintaining mechanical performance, chemical resistance, fire resistance, and acoustic insulation capabilities. The development of new manufacturing processes has also allowed for the development of these unique composite materials.

Posted in: Briefs, Materials

Read More >>

Composite Pressure Vessel Including Crack Arresting Barrier

NASA’s Marshall Space Flight Center innovators have developed several new designs and methods of fabrication for composite and composite-overwrapped tank vessels that help significantly improve their structural integrity against impact, abrasion, harsh environments, and fire. Several embodiments of this technology portfolio also enable production of composite tanks capable of transporting liquefied natural gas or other cryogenic liquids. These innovations are applicable to important aerospace needs, including propulsion systems, as well as new and growing fields such as natural gas transportation.

Posted in: Briefs, Materials

Read More >>

The U.S. Government does not endorse any commercial product, process, or activity identified on this web site.