The hardware challenges for the Mars Exploration Rover Heat Rejection System
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Engineering topics
Publications and source records attributed to Tsuyuki, G..
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The intent of mechanical design is to deliver a hardware product that meets or exceeds customer expectations, while reducing cycle time and cost.
Cassini, NASA's mission to investigate the Saturnian system was launched successfully on October 15, 1997.
Cassini, NASA's mission to investigate the Saturnian system was launched successfully on October 15, 1997.
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An Optimized thermal design for the SMILS Telescope has been developed. This design has demonstrated that the expected on-orbit lateral temperature gradient in the primary reflector has been minimized.
A detailed thermal analysis has been performed for a panel of a segmented primary mirror which is closest to the high side of the telescope sunshade. This panel was selected because the spatial temperature distribution was expected to be the worst. The JPL90-10 primary reflector panel configuration was investigated because of its superior figure error performance in ground-based testing.
The Geostationary Microwave Precipitation Radiometer antenna is considered and a thermal design analysis is performed to determine a design that would minimize on-orbit antenna temporal and spatial temperature gradients. The final design is based on an optically opaque radome which covered the antenna. The average orbital antenna temperature is found to be 9 C with maximum temporal and spatial variations of 34 C and 1 C, respectively. An independent thermal distortion analysis showed that this temporal variation would give an antenna figure error of 14 microns.