Technology Transfer & Spinoffs

November 23, 2023

‘Digital Winglets’ for Real Time Flight Paths

Source: NASA

Before airplanes even reach the runway, pilots must file a plan to inform air traffic controllers where they’re going and the path they are going to take. When planes are in the air, however, that plan often changes. From turbulence causing passenger discomfort and additional fuel use to unexpected weather patterns blocking the original path, pilots have to think on the fly and inform air traffic controllers of any modifications to their routes.

In the past, these changes would have to happen suddenly and with little lead time. But as airplanes have become more digitally connected, the flying machines can take advantage of the additional data they receive, and a NASA-developed technology can help pilots find the best path every time.

NASA has explored methods to improve aircraft efficiency since its inception. Among the agency’s most famous contributions are winglets, upturned vertical flanges at the ends of airplane wings that eliminate turbulence at the wingtip and significantly save fuel. Fuel efficiency is critical to future aircraft development, as it not only improves performance and the weight it can carry but also reduces the amount of greenhouse gases released into the atmosphere.

David Wing, principal researcher of air traffic management at NASA’s Langley Research Center in Hampton, Virginia, develops advanced autonomy systems for aircraft, allowing operators to directly manage flight paths in crowded skies. He noticed some of the same technology used for safe routing could also optimize routes for flights already in the air. Allowing pilots to identify a better path as soon as it’s available could save time and money.

“Air traffic control is there to keep the aircraft safely separated from other aircraft,” said Wing. “So, the trick is, when you need to change your routing, what route do you ask for, and how much will it save you?”

Under Wing’s lead, NASA developed Traffic-Aware Strategic Aircrew Requests (TASAR), a piece of software pilots and ground operations teams can use to find better routes in transit. TASAR uses a genetic algorithm, a machine learning system that finds the optimal answer by pitting hundreds of route changes against each other and seeing which one comes out on top. TASAR takes a map of the area and draws hundreds of lines radiating from the airplane. These lines represent potential routes the plane could take. The software whittles down every route it generates, avoiding ones that stray into no-fly zones or dangerous weather systems or get too close to other aircraft until it’s found the most efficient route the airplane can take. Then, it’s up to the pilot to take the computer’s advice. Information is constantly updated using sensors on the airplane and connections to ground-based services, which TASAR takes into account.

“The algorithms had been tested and matured already for many years in our research, so they were in pretty good shape,” Wing said. “But we had to connect this system to a real aircraft, which meant that we needed to be able to access data from the onboard avionics.”

On NASA test flights, the software worked perfectly, but for TASAR to break into more flights, commercial planes needed to be able to access large amounts of data. As it turned out, a solution was close at hand.

The company iJET originally built components that could keep planes connected to the latest information available on the ground, which often wasn’t available in the sky. After developing better antennas, the company soon began working on a new integrated computer system for airplanes to collect data and stay connected to ground-based information sources. When looking for a “killer app” for the system, the company discovered TASAR.

“We saw that NASA was getting to the conclusion of this work, and we took a business decision to pick up the baton,” said Rob Green, CEO of the company.
After being acquired by another company called Aviation Partners, the Seattle-based company was renamed APiJET in 2018 and became the first company to license TASAR from NASA. APiJET proceeded to tie the software to the in-flight computer system. The company’s version of TASAR is called Digital Winglets, named after the NASA invention.

The app runs on electronic flight bags, computer devices approved for use in flight operations by the Federal Aviation Administration, most commonly Apple iPads. Green said there are no plans to integrate it directly into a cockpit instrument panel because updating an app is easier. In testing with Alaska Airlines, Green said the program saved 2% on fuel, working out to approximately 28,000 pounds of fuel per hundred flights.
“Two percent may not sound like much, but little savings can really add up at airline scale,” Green said.

Several more airlines have tested the technology, and Frontier Airlines is currently field testing for a potential deployment of Digital Winglets across its fleet. APiJET still keeps in touch with the developers at NASA to further research TASAR’s benefits and build out its commercial capabilities.

“Everybody that worked on TASAR at NASA should be really proud of their direct impact on fuel savings and carbon reduction,” Green said. “It’s a lot to wrap your head around, but it works.”

NASA has a long history of transferring technology to the private sector. The agency’s Spinoff publication profiles NASA technologies that have transformed into commercial products and services, demonstrating the broader benefits of America’s investment in its space program. Spinoff is a publication of the Technology Transfer program in NASA’s Space Technology Mission Directorate (STMD).
For more information on how NASA brings space technology down to Earth, visit:
www.spinoff.nasa.gov

November 1, 2023

NASA’s Webb Telescope Improves Simulation Software

Source: NASA

The James Webb Space Telescope truly explores the unknown, displaying stunning images of previously unseen corners of the universe only possible because of the telescope’s 21-foot segmented mirror that unfurled and assembled itself in space.
Decades of testing went into the materials, design, and processes needed to develop the largest telescope in space. However, the whole project was too complex to test on the ground, at scale, at minus 400 degrees Fahrenheit, and in other space-like conditions.
Instead, engineers relied on software simulations to understand how the telescope would behave under different in-space conditions, and that work has helped advance the whole field of integrated computer modeling.

“We pushed everything, all the simulation, just as hard as it would go,” said Erin Elliott, an optical engineer at Ansys, Inc., which makes Ansys Zemax OpticStudio, one of the design software suites used to develop hardware and software for the Webb telescope.
Simulation technology has improved dramatically over the last two decades because of increases in computing power and new ways of accessing offsite computing power as a cloud service. But additional improvements trace back directly to Webb’s development.
Elliott used OpticStudio to support the Webb telescope while working for other NASA contractors, beginning in the early 2000s, before starting work in 2015 for Zemax ¬– which later became Ansys Zemax ¬– headquartered in Canonsburg, Pennsylvania.
In the early days, Elliott said, Zemax tweaked its software for the Webb telescope effort. “They made some specific changes for us at the time having to do with handling the coordinate systems of the segments,” she said, referring to the 18 hexagonal segments that make up the telescope’s primary mirror.
Elliott also recalled talking to Zemax leadership numerous times about the need for the software to communicate better with other Microsoft Windows programs. The company introduced an API, or application programming interface, for OpticStudio, which enables the suite to work with other programs and allows for further customization. There were plenty of reasons to add that technology but Webb demands were likely significant among them, Elliott said.

Joseph Howard, an optical engineer at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, where Webb and its science instrument module were assembled, noted that using several modeling packages helped drive innovation in the field. “It’s important to have multiple software companies out there that can help you not only for cross-checking the modeling, but because they make each other better through competition,” he said.
In addition to improvements made to OpticStudio during Webb telescope development, Ansys Zemax in 2021 introduced the Structural, Thermal, Analysis, and Results (STAR) module, which benefited from the knowledge Elliott gained working on the NASA project.

When a mirror or lens changes shape due to temperature swings, the optics move. Much of the OpticStudio modeling was completed in smaller pieces — engineers would run a thermal simulation independently and add that data to the next optical model, generating more data for the next run.
The STAR module incorporates analyses from other simulation software directly into OpticStudio optical models — an efficiency applicable to telescope and aerospace designs. This feature is also increasingly important for autonomous vehicles, cell phone lenses, and other optics working in tough environments.
Future telescopes and other spacecraft are likely to involve elements of the Webb design. More will travel in segments that must self-assemble in space, and the development of the increasingly complicated robotics and optics will rely on improved modeling software.“When we built Webb, we knew we couldn’t fully test it on the ground prior to flight, so we depended a whole lot upon modeling and doing analysis to get ready for flight,” Howard said. “The next great observatory will be even more dependent on modeling software.”Meanwhile, designers of more earthly technologies are already seeing the benefits of an improved OpticStudio, using it to design precision endoscopes, a thermal imager to detect COVID-19 exposures in a crowd, augmented reality displays and headsets, a laser thruster technology for nanosatellites, and, of course, more telescopes.Elliott also noted that the Webb telescope project trained the next cohort of telescope and optical device builders – those designing and using the telescope’s technological spinoffs.“The people who built the Hubble Space Telescope were leading the Webb Telescope,” she said. “And now the younger engineers who cut our teeth on this project and learned from it are becoming the group of people who will build the next structures.”Elliott maintains that the project “was worth it alone for training this huge cohort of young engineers and releasing them into high-tech fields.”
NASA has a long history of transferring technology to the private sector. The agency’s Spinoff publication profiles NASA technologies that have transformed into commercial products and services, demonstrating the broader benefits of America’s investment in its space program. Spinoff is a publication of the Technology Transfer program in NASA’s Space Technology Mission Directorate (STMD).
For more information on how NASA brings space technology down to Earth, visit:
www.spinoff.nasa.gov

October 18, 2023

NASA Makes It Easier to Find Assistive Technologies for Licensing

Source: NASA

NASA develops a variety of technologies to explore space and beyond for the benefit of humanity. One measure of its success is the impact on the daily lives of millions of people with injuries and disabilities who are assisted with innovative treatments and products developed from NASA-derived technology.

After all, it was thanks to NASA’s resources that Adam Kissiah, an electronics instrumentation engineer at NASA’s Kennedy Space Center, was able to create what would become the cochlear implant. This assistive technology is now considered a medical wonder and has restored hearing to hundreds of thousands of adults and children across the planet since its creation nearly 50 years ago.
And now, NASA is making it easier than ever to find and access patented inventions born from space exploration that could help design or manufacture assistive technologies. To help spur the next generation of assistive technologies, NASA has compiled patented technologies with potential applications to this industry in one place. Companies are invited to browse the list for innovations that can help improve an existing product or launch the creation of something new.
“NASA is no stranger to improving the world of health and medicine. Our technologies benefit all humanity, and making them easier to find for companies creating these tools to improve people’s quality of life just made sense,” said Dan Lockney, program executive for NASA’s Technology Transfer program. “We can’t wait to learn how these innovations born from NASA expertise will help people lead healthy, productive, and independent lives.”
According to the Assistive Technology Industry Association (ATIA), assistive technologies are products, equipment, and systems that enhance learning, working, and daily living for people with disabilities. This includes everything from hardware, such as prosthetics, hearing aids, and wheelchairs, to software like screen readers and communication programs.

Another notable NASA assistive technology spinoff is JORDY, or Joint Optical Reflective Display. The device enables people with low vision to read and write. JORDY enhances an individual’s remaining sight by magnifying objects up to 50 times and allowing them to change contrast, brightness, and display modes, depending on what works best for their low-vision condition.

The curated list on technology.nasa.gov features hardware and software available for licensing, including:
A robotic upper body exoskeleton that helps the user control the shoulder and elbow to rehabilitate people suffering from the effects of a stroke or traumatic brain injury
A glove to help reduce the grasping force needed to operate tools for an extended period of time, born from a collaboration to build a robotic astronaut
3D printing techniques to help build delicate or complex parts
New and improved processes to fabricate circuitry
In January 2024, representatives from NASA’s Technology Transfer program will be present at the ATIA conference in Orlando, Florida. Attendees will be able to learn more about the assistive technologies available for licensing.
NASA’s Technology Transfer program, managed by the Space Technology Mission Directorate, ensures technologies developed for missions of exploration and discovery are broadly available to the public, maximizing the benefit to humanity. Learn more by visiting the Technology Transfer Portal at:
https://technology.nasa.gov