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TECHNOLOGIES

   
3-D Printing facilities to bring concepts to reality. Design concepts from a CAD model can be turned into 3-D Printing Models for assembly, fit check, display or functionality The Molecular Kinetics

3-D Printing facilities to bring concepts to reality. Design concepts from a CAD model can be turned into 3-D Printing Models for assembly, fit check, display or functionality.

The Molecular Kinetics (MoleKit) test facility is a vacuum chamber that has been configured to measure contaminant outgassing and re-evaporation rates from candidate spacecraft materials. Four Quartz Crystal Microbalances allow simultaneous collection at temperatures between -176 oC and +125 oC.

 

Mechanical Testing of MEMS Devices Cryogenic Loop Heat Pipe (CLHP) for Large Area Cooling (Propulsion Tanks)

Mechanical Testing of MEMS Devices: The 541 Micro/Nano-scale Mechanical Test System (left); with capacitive comb drive nano-force sensor actuated vertically (probe configuration) using piezoelectric actuator.  Upper right mage shows probe tip in contact with a Si-based “butterfly” MEMS structure.  Center right images shows test of a JWST-based microshutter to determine actuation force and stiffness.  Lower right image shows test of a Si cantilever beam to assess material properties.

Cryogenic Loop Heat Pipe (CLHP) for Large Area Cooling (Propulsion Tanks) has been tested with neon (at 35 Kelvin) and helium (3 Kelvin) to demonstrate feasibility of cooling propellant tanks – zero-boil-off technology to reduce the loss of propellant during long term storage on orbit.

 

Light Weight Composite Technology 3D Woven joint technology

Light Weight Composite Technology:  Code 540 has developed and verified composite Cup/cone fittings for deployment devices (Shown, GPM cup/cone stackup, two individual cup/cones and the those two parts nested to show precision fit).

3D Woven joint technology:  Code 540 has developed 3D woven composite design and manufacturing methods for higher performing, damage tolerant joints  (shown, basic weave architecture, H-joint dry weave, and the H-joint in connecting two sandwich panels).

 

Shaped Composite Structure Design Technology Out-of-Autoclave (OoA)

Shaped Composite Structure Design Technology: Code 540 has developed the capability to design, analyze,  and efficiently produce shaped composite structures (shown, ply cut pattern for Hybrid Doppler Wind Lidar Transceiver shell, completed shell, and full telescope shown).

Out-of-Autoclave (OoA) cured  composite technology: Code 540 has developed OoA composite design and manufacturing techniques enabling Monocoque designs and joining structures with vacuum bag only approaches. (shown, hot bonder used to cure composite joints, and joint verification panels). 

 

 

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    Goddard Space Flight Center
    MSD/Code 540
    8800 Greenbelt Road
    Greenbelt, Maryland 20771