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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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EMI / EMC Design for Class D Payloads (Resource Prospector / NIRVSS)
EMI/EMC techniques are applied to a Class D instrument (NIRVSS) to achieve low noise performance and reduce risk of EMI/EMC testing failures and/or issues during system integration and test. Basic techniques are not terribly expensive or complex, but do require close coordination between electrical and mechanical staff early in the design process. Low-cost methods to test subsystems on the bench without renting an EMI chamber are discussed. This method was applied to the NIRVSS instrument and achieved improvements up to 59dB on conducted emissions measurements between hardware revisions.
Introduction to the Human Factors Implementation Team (HFIT) Process for Payload Developers
No abstract available
Marshall Space Flight Center (MSFC) Payloads Operations and Integration Center (POIC) Status
No abstract available
Facility for Payload Cleaning and Assembly and for Curation of Returned Genesis Solar Wind Samples
No abstract available
Experimental Evaluation of Tuned Chamber Core Panels for Payload Fairing Noise Control
Analytical models have been developed to predict the sound absorption and sound transmission loss of tuned chamber core panels. The panels are constructed of two facesheets sandwiching a corrugated core. When ports are introduced through one facesheet, the long chambers within the core can be used as an array of low-frequency acoustic resonators. To evaluate the accuracy of the analytical models, absorption and sound transmission loss tests were performed on flat panels. Measurements show that the acoustic resonators embedded in the panels improve both the absorption and transmission loss of the sandwich structure at frequencies near the natural frequency of the resonators. Analytical predictions for absorption closely match measured data. However, transmission loss predictions miss important features observed in the measurements. This suggests that higher-fidelity analytical or numerical models will be needed to supplement transmission loss predictions in the future.
Payload Operations Integration Working Group (POIWG) Face-to-Face Meeting #40: Upgraded Concept, Agenda, Location
No abstract available
New ISS 1E Payload Development Process: Lessons Learned by Miniature Exercise Device 2 (MED-2) Project
No abstract available
Multilateral Payload Training Panel (MPTP) Joint Research Status to ITCB
No abstract available