Space Interferometry Mission: recent instrument configuration developments
In this paper, we discuss the current reference design of the SIM instrument, and illustrate some of the tradeoffs that led to this arrangement.
SIM configuration↗
Engineering topics
Stubbs, D. M.
Publications and source records attributed to Stubbs, D. M..
Development of the CLAES instrument aperture door system
The design, assembly, and test processes followed in developing a space-qualified aperture door system are described. A blackbody calibration source is mounted inside the door, requiring the assembly to open and close a minimum of 150 cycles for instrument recalibration. Within the door system are four separate mechanisms, three of which are redundant; a pyro launch latch, a hinge bearing assembly, and a pair of pivot mechanisms. Decoupling devices within the pivot mechanisms allow an active drive unit to automatically overdrive a failed drive unit. The door is also stowable for possible Shuttle retrieval and re-entry. Illustrations and photographs of the flight hardware help acquaint the reader with the design. The aim is to pass on lessons learned in all phases of developing this spaceflight mechanism.
Stubbs, D. M.↗