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Topic: 3-D Printing

NASA makes break through in Additive Manufacturing for Rocket Propulsion

 

NASA Marshall Space Flight Center

NASA - National Aeronautics and Space AdministrationHuntsville, AL – NASA is breaking ground in the world of additive manufacturing with the Low Cost Upper Stage-Class Propulsion project. Recently, the agency successfully hot-fire tested a combustion chamber at NASA’s Marshall Space Flight Center in Huntsville, Alabama made using a new combination of 3-D printing techniques.

“NASA continues to break barriers in advanced manufacturing by reducing time and costs involved in building rocket engine parts through additive manufacturing,“ said John Fikes, project manager for the Low Cost Upper Stage-Class Propulsion Project. “We are excited about the progress of this project. We demonstrated that the E-Beam Free Form Fabrication produced combustion chamber jacket can protect the chamber liner from the pressures found in the combustion chamber.”  

A new study involving long-term monitoring of Alpha Centauri by NASA’s Chandra X-ray Observatory indicates that any planets orbiting the two brightest stars are likely not being pummeled by large amounts of X-ray radiation from their host stars. This is important for the viability of life in the nearest star system outside the Solar System. (Optical: Zdenek Bardon; X-ray: NASA/CXC/Univ. of Colorado/T. Ayres et al.)

A new study involving long-term monitoring of Alpha Centauri by NASA’s Chandra X-ray Observatory indicates that any planets orbiting the two brightest stars are likely not being pummeled by large amounts of X-ray radiation from their host stars. This is important for the viability of life in the nearest star system outside the Solar System. (Optical: Zdenek Bardon; X-ray: NASA/CXC/Univ. of Colorado/T. Ayres et al.)

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NASA uses CubeSat Class to encourage STEM Education in Tennessee

 

Written by Shannon Ridinger
NASA’s Marshall Space Flight Center

NASA - National Aeronautics and Space AdministrationHuntsville, AL – NASA is on a mission to inspire young minds to become the next generation of critical thinkers. By engaging students in space exploration at the agency’s Marshall Space Flight Center in Huntsville, Alabama, NASA encourages learning in science, technology, engineering and mathematics (STEM) in a way that fosters hands-on learning and discovery.

“As more states incorporate STEM-focused education into their standards, we assist teachers by developing curriculum support materials that help them meet the standards while making learning fun for their students,” said Susan Currie, education specialist at Marshall.

Students at Robertsville Middle School in Oak Ridge, Tennessee, design a 1U CubeSat as part of an elective course developed by Robertsville Middle School teachers and NASA's Educator Professional Development Collaborative. (NASA/Oak Ridge City Schools)

Students at Robertsville Middle School in Oak Ridge, Tennessee, design a 1U CubeSat as part of an elective course developed by Robertsville Middle School teachers and NASA’s Educator Professional Development Collaborative. (NASA/Oak Ridge City Schools)

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NASA Engineers successfully use 3-D Printed Part on RS-25 Rocket Engine

 

NASA Headquarters

NASA - National Aeronautics and Space AdministrationWashington, D.C. – Engineers successfully hot-fire tested an RS-25 rocket engine with a large 3-D printed part for the first time on December 13th, marking a key step toward reducing costs for future engines that power NASA’s new heavy-lift rocket, the Space Launch System.

During flight, a rocket may experience powerful up-and-down vibrations mainly due to the engines and propellant in the feed lines. This is called the pogo effect and is similar to the up-and-down motion of bouncing on a pogo stick. The 3-D printed part tested, called the pogo accumulator, is a beachball-sized piece of hardware that acts as a shock absorber by regulating liquid oxygen movement in the engine to prevent the vibrations that can destabilize a rocket’s flight.

The successful hot-fire test of an RS-25 development engine at NASA's Stennis Space Center on Dec. 13 included NASA's largest 3-D printed rocket engine component to date, the pogo accumulator assembly. The test was the first of 50 for NASA's restart of RS-25 engine production. (NASA/Stennis)

The successful hot-fire test of an RS-25 development engine at NASA’s Stennis Space Center on Dec. 13 included NASA’s largest 3-D printed rocket engine component to date, the pogo accumulator assembly. The test was the first of 50 for NASA’s restart of RS-25 engine production. (NASA/Stennis)

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NASA uses 4-D Printing to create Metal Fabrics for Space

 

Written by Elizabeth Landau
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – Raul Polit Casillas grew up around fabrics. His mother is a fashion designer in Spain, and, at a young age, he was intrigued by how materials are used for design.

Now, as a systems engineer at NASA’s Jet Propulsion Laboratory in Pasadena, California, he is still very much in the world of textiles. He and his colleagues are designing advanced woven metal fabrics for use in space.

These fabrics could potentially be useful for large antennas and other deployable devices, because the material is foldable and its shape can change quickly.

This metallic "space fabric" was created using 3-D printed techniques that add different functionality to each side of the material. (NASA/JPL-Caltech)

This metallic “space fabric” was created using 3-D printed techniques that add different functionality to each side of the material. (NASA/JPL-Caltech)

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