Engineering topics
Publications and source records attributed to O'Rourke, Mary Jane E..
A deformable closure mechanism for an aperture that may include an aperture seal that has a seal seat between an internal support structure and an external support structure. A barrier structure may be configured to resealably close the aperture, and have a central membrane and a barrier sealed that is inflatable in order to engage the barrier structure with the aperture seal.
Materials samples were exposed to the low Earth orbit (LEO) environment as part of the MISSE-7B flight experiment for 18 months. Optical properties, thickness/mass loss, surface elemental analysis, visual and microscopic analysis for surface change are some of the techniques employed in this investigation. Where possible, the MISSE-7B results are compared to analyses from other LEO experiments. ISS materials currently flying on MISSE-8 are also discussed.