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By NASA
3 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
NASA/Quincy Eggert Upside down can be right side up. That’s what NASA researchers determined for tests of an efficient wing concept that could be part of the agency’s answer to making future aircraft sustainable.
Research from NASA’s Advanced Air Transport Technology project involving a 10-foot model could help NASA engineers validate the concept of the Transonic Truss-Braced Wing (TTBW), an aircraft using long, thin wings stabilized by diagonal struts. The TTBW concept’s efficient wings add lift and could result in reduced fuel use and emissions for future commercial single-aisle aircraft. A team at the Flight Loads Laboratory at NASA’s Armstrong Flight Research Center in Edwards, California, are using the model, called the Mock Truss-Braced Wing, to verify the concept and their testing methods.
The model wing and the strut have instruments installed to measure strain, then attached to a rigid vertical test frame. Wire hanging from an overhead portion of the frame stabilizes the model wing for tests. For these tests, researchers chose to mount the 10-foot-long aluminum wing upside down, adding weights to apply stress. The upside-down orientation allows gravity to simulate the lift a wing would experience in flight.
Researchers test a 10-foot Mock Truss-Braced Wing at NASA’s Armstrong Flight Research Center in Edwards, California. A view from above shows the test structure, the wing, and the strut. The aircraft concept involves a wing braced on an aircraft using diagonal struts that also add lift and could result in significantly improved aerodynamics.NASA/Steve Freeman “A strut reduces the structure needed on the main wing, and the result is less structural weight, and a thinner wing,” said Frank Pena, NASA mock wing test director. “In this case, the test measured the reaction forces at the base of the main wing and at the base of the strut. There is a certain amount of load sharing between the wing and the strut, and we are trying to measure how much of the load stays in the main wing and how much is transferred to the strut.”
To collect those measurements, the team added weights one at a time to the wing and the truss. In another series of tests, engineers tapped the wing structure with an instrumented hammer in key locations, monitoring the results with sensors.
“The structure has natural frequencies it wants to vibrate at depending on its stiffness and mass,” said Ben Park, NASA mock wing ground vibration test director. “Understanding the wing’s frequencies, where they are and how they respond, are key to being able to predict how the wing will respond in flight.”
Researchers test a 10-foot Mock Truss-Braced Wing at NASA’s Armstrong Flight Research Center in Edwards, California. Charlie Eloff, left, and Lucas Oramas add weight to the test wing to apply stress used to determine its limits. The aircraft concept involves a wing braced on an aircraft using diagonal struts that also add lift and could result in significantly improved aerodynamics.NASA/Steve Freeman Adding weights to the wingtip, tapping the structure with a hammer, and collecting the vibration response is an unusual testing method because it adds complexity, Park said. The process is worth it, he said, if it provides the data engineers are seeking. The tests are also unique because NASA Armstrong designed, built, and assembled the wing, strut, and test fixture, and conducted the tests.
With the successful loads calibration and vibration tests nearly complete on the 10-foot wing, the NASA Armstrong Flight Loads Laboratory team is working on designing a system and hardware for testing a 15-foot model made from graphite-epoxy composite. The Advanced Air Transport Technology TTBW team at NASA’s Langley Research Center in Hampton, Virginia, is designing and constructing the model, which is called the Structural Wing Experiment Evaluating Truss-bracing.
The larger wing model will be built with a structural design that will more closely resembles what could potentially fly on a future commercial aircraft. The goals of these tests are to calibrate predictions with measured strain data and learn how to test novel aircraft structures such as the TTBW concept.
NASA’s Advanced Air Transport Technology project falls under NASA’s Advanced Air Vehicles Program, which evaluates and develops technologies for new aircraft systems and explores promising air travel concepts.
Researchers test a 10-foot Mock Truss-Braced Wing at NASA’s Armstrong Flight Research Center in Edwards, California. Frank Pena, test director, checks the mock wing. The aircraft concept involves a wing braced on an aircraft using diagonal struts that also add lift and could result in significantly improved aerodynamics.NASA/Steve Freeman Researchers test a 10-foot Mock Truss-Braced Wing at NASA’s Armstrong Flight Research Center in Edwards, California. Samson Truong, from left, and Ben Park, NASA mock wing ground vibration test director, prepare for a vibration test. The aircraft concept involves a wing braced on an aircraft using diagonal struts that also add lift and could result in significantly improved aerodynamics.NASA/Steve Freeman Researchers test a 10-foot Mock Truss-Braced Wing at NASA’s Armstrong Flight Research Center in Edwards, California. Ben Park, NASA mock wing ground vibration test director, taps the wing structure with an instrumented hammer in key locations and sensors monitor the results. The aircraft concept involves a wing braced on an aircraft using diagonal struts that also add lift and could result in significantly improved aerodynamics.NASA/Steve Freeman Share
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Last Updated Dec 04, 2024 EditorDede DiniusContactJay Levinejay.levine-1@nasa.govLocationArmstrong Flight Research Center Related Terms
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By NASA
Mike Lauer manages production of the RS-25 main engines for NASA’s heavy-lift SLS (Space Launch System), which will launch U.S. astronauts back to the Moon as part of the agency’s Artemis campaign. L3 Harris Technologies Mike Lauer, an engineer who works for the Aerojet Rocketdyne segment of L3Harris Technologies, found his career inspiration in science fiction, but for the perspective it takes to execute complex space programs, he draws on real-world experience.
Growing up, Lauer spent many cold winter nights in the basement of his Sioux Falls, South Dakota, home, creating pictures of iconic space hardware from Hollywood space movies. “That really is what got me into it,” he says.
Fast forward to today, and he’s managing production of the RS-25 main engines for NASA’s heavy-lift SLS (Space Launch System), which will launch U.S. astronauts back to the Moon as part of the agency’s Artemis campaign. When the scale and complexity of the undertaking appear daunting, Lauer thinks back to early in his career, when he designed hardware for the International Space Station, now in its third decade on orbit.
“It just seemed to me that there’s no way this was going to work, but we just kept building and solving problems and the next thing you know, we’re launching space station parts,” Lauer says. “Having that experience of seeing a program that seemed too big, too complex, and it worked, gives me great hope and confidence that we can do it again with Artemis.”
Lauer has family ties to space. His father, Don Lauer, ran the U.S. Geological Survey’s Earth Resources Observation and Science Center in Sioux Falls, a repository for data collected by NASA’s long-running Landsat series of land imaging satellites. Lauer’ father even spent time at NASA’s Johnson Space Center in Houston, home to the Agency’s human spaceflight program, exploring the role of astronauts in Earth observation from space.
But it was an artist’s fascination with fictional hardware –– that ultimately led Mike Lauer to earn his bachelor and master’s degrees in Aeronautical & Astronautical engineering from Stanford University in Palo Alto, California. “With engineering in general, there’s a connection with art,” Lauer says. “We create these things that have an artistic aesthetic to them, which is really cool.”
Cool is a word Lauer, a licensed pilot, deploys frequently in describing his career journey, understandably so. For example, he once participated in a space station assembly rehearsal with veteran astronaut Jerry Ross at Johnson’s Neutral Buoyancy Facility, a giant pool used to help train astronauts for spacewalks. “I’m in this spacesuit and Jerry Ross is in this spacesuit and we’re plugging in elements of the space station,” Lauer says, almost in disbelief. “Oh my gosh!”
While serving as Aerojet Rocketdyne’s lead engineer on the Multi Mission Radioisotope Thermo-electric Generator program, Lauer visited the U.S. Department of Energy’s Idaho National Laboratory to observe the loading of Plutonium 238 nuclear fuel into the device, which continues to power NASA’s car-sized Curiosity rover on the Martian surface. “Super cool,” he says.
For his next move, Lauer figured that, being at Aerojet Rocketdyne (now L3Harris), builder of the engines on NASA’s legendary Saturn V Moon rocket, he should get into the propulsion side of the business. He began on the J-2X, a modified version of the Saturn V’s second stage engine that NASA had planned at one point to use on the SLS. Working from 1960s era drawings, Lauer and his team created a modern, easier-to-produce design with more power that had a successful series of hot-fire tests before being replaced in favor of a different upper stage design.
Now, as RS-25 program director, Lauer works on another engine, this one originally designed for NASA’s now-retired Space Shuttle, updating and redesigning key components to meet new requirements and reduce production costs. The SLS flew its first mission without a crew, but upcoming flights will have astronauts aboard, which gives Lauer a huge sense of pride and responsibility.
“I’m awed and inspired by what we’re doing,” he says. “Really cool.”
Also really cool: Lauer serves as a volunteer pilot for the Civil Air Patrol, supporting the U.S. Air Force on search and rescue, disaster relief, and fire damage assessment missions. That keeps him busy on many weekends when he’s not refereeing youth soccer.
Aside from that, Lauer most looks forward to the day four NASA astronauts are safely aboard their recovery ship at the successful conclusion of the first human moon landing in more than five decades.
Read other I am Artemis features.
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By NASA
Una luna gibosa creciente se eleva sobre el resplandor azul del horizonte terrestre mientras la Estación Espacial Internacional orbitaba a 264 millas sobre el Océano Índico el 13 de Noviembre de 2024.Crédito: NASA Read this release in English here.
El administrador de la NASA, Bill Nelson, y otros directivos darán una rueda de prensa el jueves 5 de diciembre a la 1 p.m. EST (hora del este de EE.UU.) en la sede de la agencia en Washington para proporcionar información sobre la campaña Artemis de la agencia.
El evento para los medios de comunicación estará disponible en NASA+. Aprende a transmitir contenidos de la NASA a través de diversas plataformas, incluidas las redes sociales.
Los participantes incluyen:
Bill Nelson, administrador de la NASA Pam Melroy, administradora adjunta de la NASA Jim Free, administrador asociado de la NASA Catherine Koerner, administradora asociada, Dirección de Misión de Desarrollo de Sistemas de Exploración, Sede de la NASA Amit Kshatriya, administrador asociado adjunto, Oficina del Programa de la Luna a Marte, Dirección de Misión de Desarrollo de Sistemas de Exploración Reid Wiseman, astronauta de la NASA y comandante del Artemis II Los medios de comunicación interesados en participar en persona o por teléfono deben confirmar su asistencia antes de las 11 a.m. EST del 5 de diciembre a: hq-media@mail.nasa.gov. La conferencia de prensa tendrá lugar en el Auditorio James E. Webb de la sede central de la NASA, en el edificio Mary W. Jackson, 300 E St. SW, Washington. La política de acreditación de medios de comunicación de la NASA está disponible en línea (en inglés).
A través de la campaña Artemis, la agencia establecerá una presencia a largo plazo en la Luna para la exploración científica conjuntamente con nuestros socios comerciales e internacionales, aprenderá a vivir y trabajar lejos de nuestro hogar y se preparará para la futura exploración humana de Marte. El cohete Sistema de Lanzamiento Espacial de la NASA, los sistemas terrestres de exploración y la nave espacial Orion, junto con el sistema de aterrizaje humano, los trajes espaciales de próxima generación, la estación espacial lunar, Gateway y los futuros vehículos exploradores son la base de la NASA para la exploración del espacio profundo.
Para más información sobre Artemis (en inglés), visita:
https://www.nasa.gov/artemis
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Meira Bernstein / Rachel Kraft / María José Viñas
Sede, Washington
202-358-1600
meira.b.bernstein@nasa.gov / rachel.h.kraft@nasa.gov / maria-jose.vinasgarcia@nasa.gov
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Last Updated Dec 04, 2024 LocationNASA Headquarters Related Terms
Missions Artemis Exploration Systems Development Mission Directorate NASA Headquarters View the full article
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By NASA
A waxing gibbous moon rises over the blue glow of Earth’s horizon as the International Space Station orbited 264 miles above the Indian Ocean on Nov. 13, 2024.Credit: NASA NASA Administrator Bill Nelson and leadership will hold a news conference at 1 p.m. EST, Thursday, Dec. 5, at the agency’s headquarters in Washington to provide a briefing about the agency’s Artemis campaign.
Watch the media event on NASA+. Learn how to stream NASA content through a variety of platforms, including social media.
Participants include:
NASA Administrator Bill Nelson NASA Deputy Administrator Pam Melroy NASA Associate Administrator Jim Free Catherine Koerner, associate administrator, Exploration Systems Development Mission Directorate, NASA Headquarters Amit Kshatriya, deputy associate administrator, Moon to Mars Program Office, Exploration Systems Development Mission Directorate Reid Wiseman, NASA astronaut and Artemis II commander Media interested in participating in-person or by phone must RSVP by 11 a.m. on Dec. 5 to: hq-media@mail.nasa.gov. The news conference will take place in the James E. Webb Auditorium at NASA Headquarters in the Mary W. Jackson building, 300 E St. SW, Washington. A copy of NASA’s media accreditation policy is online.
Through the Artemis campaign, the agency will establish a long-term presence at the Moon for scientific exploration with our commercial and international partners, learn how to live and work away from home, and prepare for future human exploration of Mars. NASA’s SLS (Space Launch System) rocket, exploration ground systems, and Orion spacecraft, along with the human landing systems, next-generation spacesuits, Gateway lunar space station, and future rovers are NASA’s foundation for deep space exploration.
For more information about Artemis, visit:
https://www.nasa.gov/artemis
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Meira Bernstein / Rachel Kraft
Headquarters, Washington
202-358-1600
meira.b.bernstein@nasa.gov / rachel.h.kraft@nasa.gov
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Last Updated Dec 04, 2024 LocationNASA Headquarters Related Terms
Missions Artemis Exploration Systems Development Mission Directorate NASA Headquarters View the full article
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