1 national aeronautics and space administration john h. glenn research center at lewis field space...
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National Aeronautics and Space AdministrationJohn H. Glenn Research Center at Lewis Field
Space Power Facility (SPF)
CEV Environmental Qualification Testing
DISCLAIMER:This Initial Government Concept does not represent a preferred Government
approach or solution.
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National Aeronautics and Space AdministrationJohn H. Glenn Research Center at Lewis Field
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National Aeronautics and Space AdministrationJohn H. Glenn Research Center at Lewis Field
Space Power Facility Cutaway View
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National Aeronautics and Space AdministrationJohn H. Glenn Research Center at Lewis Field
Facility Architecture for CEV Testing
Assembly and Integration Area
Thermal/Vacuum and EMI/EMC Test Area
Random and Acoustic Vibration Test Area
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National Aeronautics and Space AdministrationJohn H. Glenn Research Center at Lewis Field
Operations Flow
* SPF Specific Schemes/Techniques Provide Low Risk Handling of Hardware
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National Aeronautics and Space AdministrationJohn H. Glenn Research Center at Lewis Field
Major Area for Facility Upgrades Vibration Test Area
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National Aeronautics and Space AdministrationJohn H. Glenn Research Center at Lewis Field
EMI/EMC Testing
All tests are performed inside the aluminum vacuum chamber using the chamber as an RF shield
Minimum facility modifications required
Facility survey was performed showing very low RF noise
Utilizes large chamber size to position EMI equipment using movable platforms
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National Aeronautics and Space AdministrationJohn H. Glenn Research Center at Lewis Field
EMI/EMC Testing
Aluminum vacuum chamber is well suited for radiated susceptibility testing, and for radiated emissions testing
Data traces shown in figure indicate that the RF energy penetrating into the chamber is below thresholds used in the International Space Station Program
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National Aeronautics and Space AdministrationJohn H. Glenn Research Center at Lewis Field
Random Vibration Testing
Large 3 axis state-of-the-art shaker system sized to test CEV full stack and LSAM (LSAM mass 120,000 lbs)
7 shaker system allows for ease of changeover to vertical axis testing
4 – 45,000 lb horizontal 3 – 65,000 lb vertical
New data acquisition and control system
450 channel data acquisition system will be used for both random and acoustic vibration testing
1.4 million lb seismic mass installed in high bay
Shaker slip table below grade allows for full stack testing
Facility can be modified to handle tanks filled with isopropyl alcohol
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National Aeronautics and Space AdministrationJohn H. Glenn Research Center at Lewis Field
Acoustic Vibration TestingChamber Characteristics
Build a new 80,000 ft3 (40ft x 45ft x 46 ft tall) RATF with capability of 163 dB in the empty chamber
The design of this chamber utilizes known state-of-the-art technology for acoustic testing at these levels and is considered the most powerful chamber that can be built of this size
Chamber size is large enough to test the integrated SA/SM/CM/LAS boost cover and the LAS tower as a separate test
Chamber size and chamber access doors are large enough to allow testing of the LSAM Typical 60,000 ft3 Reverberant Acoustic Test Facility
GRC Utilized Wyle Laboratories for proposal information (worlds leading expert in building acoustic facilities)
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National Aeronautics and Space AdministrationJohn H. Glenn Research Center at Lewis Field
Thermal Vacuum Testing
Solar Simulation Build test specific lamp
structure
Full surround lamp structure with movable sections to allow deployments
Existing Power Supply/Controllers
14 zones (7.2 MW) Maximum 400 kW/zone. SCR control
Existing chamber penetrations utilized
Cryogenic Systems
Reconfigure existing shroud panels to 40 foot tall x 40 wide x 80 ft long envelope
Cryopanel end walls will swing open to allow test article insertion
Assembly platform with attached cryofloor will be used for build-up of test article in Assembly Area and allow integrated unit to be moved to test chamber on rail system
Orion Cryoshroud Concept with Doors Closed
ISS Testing Cryoshroud Configuration
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National Aeronautics and Space AdministrationJohn H. Glenn Research Center at Lewis Field
Thermal Shroud System Designed for LSAM Testing
CEV Testing Deployable Structures LSAM Testing in Lunar Surface Configuration
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National Aeronautics and Space AdministrationJohn H. Glenn Research Center at Lewis Field
Existing Cryogenic Systems
SPF LN2 & GN2 Distribution Systems
– 28 K GAL LN2 STORAGE (60 PSI SUPPLY)– 200 K LN2 TANK LOW PRESSURE STORAGE– ELECTRIC LN2 VAPORIZER FOR GN2– GN2 STORAGE ~ 70,000 SCF @ 2600 PSI– CRYOSHROUD GN2 RECIRCULATION COOLED WITH LN2
DESUPERHEATER
– LN2 SUPPLY FOR CRYOSHROUD AND DIFFUSION PUMP BAFFLES AND TEST SPECIFIC HARDWARE
– 11,000 CFM COMPRESSORS CIRCULATE GN2 THRU CRYOSHROUD
Capable of removing up to 14 MW of heat
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National Aeronautics and Space AdministrationJohn H. Glenn Research Center at Lewis Field
Infrared Lamp System
INFRARED HEAT LAMP SYSTEM
DESIGN CHARACTERISTICS
USES TUNGSTEN QUARTZ LAMPS
AUTOMATIC HEAT FLUX CONTROL
CLOSED LOOP TEMP CONTROL
VARIABLE TEMPERATURE RANGE
INDEPENDENT CONTROLLED BANKS
7 MW POWER AVAILABLE INSIDE CHAMBER
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National Aeronautics and Space AdministrationJohn H. Glenn Research Center at Lewis Field
Ancillary Facility Support Systems
General Maintenance and certification is in progress for the following systems
Chamber door and bridge systems
8000 GPM closed system cooling tower
Gaseous nitrogen system
Facility service air system - 110 psig
Electrical substation - 14 MW available
Emergency power generator
Facility Lifting Devices