The dislodgement, venting, and redeposition of particles on a surface caused by the vibroacoustic, gravitational, and aerodynamic forces are estimated and the resulting areal obscurations of the surface are calculated. The data on particle redistribution estimated to occur during a Shuttle launch are employed to estimate the obscuration of a spacecraft's star tracker, as it is carried into orbit by the Shuttle. The approach used for that calculation is generalized so that it can be employed for other applications where either the Shuttle or an Expendable Launch Vehicle (ELV) is employed for launch. Approaches for evaluating particle redistribution for other applications and for general use are indicated.
Redistribution of Particulates on a Payload During Flight Ascent
1991
17 pages
Report
Keine Angabe
Englisch
Space Launch Vehicles & Support Equipment , Occultation , Particle size distribution , Spacecraft environments , Spacecraft launching , Star trackers , Payloads , Acoustics , Aerodynamic forces , Gravitational fields , Launch vehicles , Particulates , Venting , Vibrational stress , Spacecraft construction materials
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