Predicted and observed directional dependence of meteoroid/debris impacts on LDEF thermal blankets

Details Predicted and observed directional dependence of meteoroid/debris impacts on LDEF thermal blankets Predicted and observed directional dependence of meteoroid/debris impacts on LDEF thermal blankets

Jun 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992ldef.symp...50d&link_type=abstract

In NASA. Langley Research Center, Second LDEF Post-Retrieval Symposium Abstracts p 50 (SEE N92-27218 18-99)

Computer Science

Numerical Analysis

Long Duration Exposure Facility, Mathematical Models, Meteoritic Damage, Meteoroid Concentration, Meteoroid Hazards, Prediction Analysis Techniques, Space Debris, Spacecraft Shielding, Thermal Insulation, Calibrating, Numerical Analysis, Thickness

Scientific paper

The number of impacts from meteoroids and space debris particles to the various Long Duration Exposure Facility (LDEF) rows is calculated using ESABASE/DEBRIS, a 3-D numerical analysis tool. It is based on the latest environment flux models and includes geometrical and directional effects. A detailed comparison of model predictions and actual observations is made for impacts on the thermal blankets which covered the USCR experiment. Impact features on these blankets were studied intensively in European laboratories and hypervelocity impacts for calibration were performed. The thermal blankets were located on all LDEF rows, except 3, 9, and 12. Because of their uniform composition and thickness, these blankets allow a direct analysis of the directional dependence of impacts and provide a unique test case for the latest meteoroid and debris flux models.

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