Engineering topics

Coleman, Michelle

Publications and source records attributed to Coleman, Michelle.

3 records

NASA NTRS2004

Passive Thermal Compensation of the Optical Bench of the Galaxy Evolution Explorer

The Galaxy Evolution Explorer is an orbiting space telescope that will collect information on star formation by observing galaxies and stars in ultraviolet wavelengths. The optical bench supporting detectors and related optical components used an interesting and unusual passive thermal compensation technique to accommodate thermally-induced focal length changes in the optical system. The proposed paper will describe the optical bench thermal compensation design including concept, analysis, assembly and testing results.

optomechanical design↗

NASA NTRS2003

GALEX Instrument: Pegasus Launch Temperature Effects on a Frequency Tuned Damped Structure

The viewgraph presentation about the GALEX instrument provides information about instrument layout, background information about the telescope response, instrument bipod redesign, and temperature effects on bipod stiffness and damping. The discussion of instrument bipod redesign includes stiffness reduction, damping, and test results.

damped↗

NASA NTRS1997

Test Verification of the Cassini Spacecraft Dynamic Model

The Cassini spacecraft mission to Saturn will be launched in October 1997, on a Titan IV/Centaur launch vehicle. Cassini is the largest interplanetary spacecraft ever developed. Before launch approval can be obtained, a test verified finite element model of the Cassini spacecraft must be completed and approved by NASA. The correctness of this model is critical to the final verification coupled loads analysis and margin of safety assessments.

Cassini↗