NASA Logo, External Link
Facebook icon, External Link to NASA STI page on Facebook Twitter icon, External Link to NASA STI on Twitter YouTube icon, External Link to NASA STI Channel on YouTube RSS icon, External Link to New NASA STI RSS Feed AddThis share icon
 

Record Details

Record 8 of 1433
Thermal design verification testing of the Clementine spacecraft: Quick, cheap, and useful
Author and Affiliation:
Kim, Jeong H.(Naval Research Lab., Washington, DC, United States)
Hyman, Nelson L.(Naval Research Lab., Washington, DC, United States)
Abstract: At this writing, Clementine had successfully fulfilled its moon-mapping mission; at this reading it will have also, with continued good fortune, taken a close look at the asteroid Geographos. The thermal design that made all this possible was indeed formidable in many respects, with very high ratios of requirements-to-available resources and performance-to-cost and mass. There was no question that a test verification of this quite unique and complex design was essential, but it had to be squeezed into an unyielding schedule and executed with bare-bones cost and manpower. After describing the thermal control subsystem's features, we report all the drama, close-calls, and cost-cutting, how objectives were achieved under severe handicap but (thankfully) with little management and documentation interference. Topics include the newly refurbished chamber (ready just in time), the reality level of the engineering model, using the analytical thermal model, the manner of environment simulation, the hand-scratched film heaters, functioning of all three types of heat pipes (but not all heat pipes), and the BMDO sensors' checkout through the chamber window. Test results revealed some surprises and much valuable data, resulting in thermal model and flight hardware refinements. We conclude with the level of correlation between predictions and both test temperatures and flight telemetry.
Publication Date: Nov 01, 1994
Document ID:
19950007670
(Acquired Dec 28, 1995)
Accession Number: 95N14083
Subject Category: SPACECRAFT DESIGN, TESTING AND PERFORMANCE
Coverage: Abstract Only
Document Type: Conference Paper
Publication Information: NASA. Goddard Space Flight Center, Eighteenth Space Simulation Conference: Space Mission Success Through Testing; p 255
Publisher Information: United States
Financial Sponsor: NASA; United States
Organization Source: Naval Research Lab.; Center for Space Technology.; Washington, DC, United States
Description: 1p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: No Copyright
NASA Terms: CONTROL SYSTEMS DESIGN; ENVIRONMENT MODELS; EXPERIMENT DESIGN; LOW COST; MATHEMATICAL MODELS; SPACE ENVIRONMENT SIMULATION; SPACECRAFT TEMPERATURE; THERMAL ANALYSIS; THERMAL VACUUM TESTS; ASTEROIDS; CHECKOUT; HEAT PIPES; HEATERS; SCHEDULES; TELEMETRY; TEMPERATURE CONTROL
Imprint And Other Notes: In NASA. Goddard Space Flight Center, Eighteenth Space Simulation Conference: Space Mission Success Through Testing p 255 (SEE N95-14062 03-18)
Availability Source: Other Sources
› Back to Top
Find Similar Records
NASA Logo, External Link
NASA Official: Gerald Steeman
Site Curator: STI Program
Last Modified: August 27, 2013
Contact Us