Protecting the EEC Comet Halley probe from meteoroid impact

Details Protecting the EEC Comet Halley probe from meteoroid impact Protecting the EEC Comet Halley probe from meteoroid impact

Oct 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979esasp.153...67s&link_type=abstract

In its Comet Halley Micrometeoroid Hazard Workshop p 67-72 (SEE N80-22200 12-91)

Mathematics

Probability

1

Halley'S Comet, Meteoritic Damage, Meteoroid Protection, Micrometeoroids, Space Probes, Spacecraft Shielding, Comet Nuclei, Flyby Missions, Honeycomb Structures, Hypervelocity Impact, Metal Plates, Meteoroid Hazards

Scientific paper

A practical and straightforward approach is proposed for evaluating effectiveness of spacecraft meteoroid shields. The analysis accounts for most of the physics governing relevant hypervelocity impact situations that is currently understood. Relatively few assumptions were required and these were made in a clearly conservative manner. As an example, the technique was applied to evaluate a dual element meteoroid shield designed to protect the ESA Comet Halley probe from a 0.01 probability mission threat (0.1 g meteoroid with a gross density of 0.5 g/cu cm impacting normally at 57 km/sec). A shield of reasonable dimensions was estimated to survive the encounter (0.5 mm aluminum bumper plate spaced 15 cm ahead of a structure consisting of a 1 mm aluminum plate supported by aluminum honeycomb).

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