FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W244126856> ?p ?o ?g. }

• W244126856 abstract "Satellite collision debris poses risks to existing space assets and future space missions. Predictive models of debris generated from these hypervelocity collisions are critical for developing accurate space situational awareness tools and effective mitigation strategies. Hypervelocity collisions involve complex phenomenon that spans several time- and length-scales. We have developed a satellite collision debris modeling approach consisting of a Lagrangian hydrocode enriched with smooth particle hydrodynamics (SPH), advanced material failure models, detailed satellite mesh models, and massively parallel computers. These computational studies enable us to investigate the influence of satellite center-of-mass (CM) overlap and orientation, relative velocity, and material composition on the size, velocity, and material type distributions of collision debris. We have applied our debris modeling capability to the recent Iridium 33-Cosmos 2251 collision event. While the relative velocity was well understood in this event, the degree of satellite CM overlap and orientation was ill-defined. In our simulations, we varied the collision CM overlap and orientation of the satellites from nearly maximum overlap to partial overlap on the outermost extents of the satellites (i.e, solar panels and gravity boom). As expected, we found that with increased satellite overlap, the overall debris cloud mass and momentum (transfer) increases, the average debris more » size decreases, and the debris velocity increases. The largest predicted debris can also provide insight into which satellite components were further removed from the impact location. A significant fraction of the momentum transfer is imparted to the smallest debris (< 1-5mm, dependent on mesh resolution), especially in large CM overlap simulations. While the inclusion of the smallest debris is critical to enforcing mass and momentum conservation in hydrocode simulations, there seems to be relatively little interest in their disposition. Based on comparing our results to observations, it is unlikely that the Iridium 33-Cosmos 2251 collision event was a large mass-overlap collision. We also performed separate simulations studying the debris generated by the collision of 5 and 10 cm spherical projectiles on the Iridium 33 satellite at closing velocities of 5, 10, and 15 km/s. It is important to understand the vulnerability of satellites to small debris threats, given their pervasiveness in orbit. These studies can also be merged with probabilistic conjunction analysis to better understand the risk to space assets. In these computational studies, we found that momentum transfer, kinetic energy losses due to dissipative mechanisms (e.g., fracture), fragment number, and fragment velocity increases with increasing velocity for a fixed projectile size. For a fixed velocity, we found that the smaller projectile size more efficiently transfers momentum to the satellite. This latter point has an important implication: Eight (spaced) 5 cm debris objects can impart more momentum to the satellite, and likely cause more damage, than a single 10 cm debris object at the same velocity. Further studies are required to assess the satellite damage induced by 1-5 cm sized debris objects, as well as multiple debris objects, in this velocity range. « less" @default.
• W244126856 created "2016-06-24" @default.
• W244126856 creator A5015539250 @default.
• W244126856 creator A5028756806 @default.
• W244126856 creator A5048574353 @default.
• W244126856 creator A5076068864 @default.
• W244126856 creator A5081049940 @default.
• W244126856 date "2010-09-06" @default.
• W244126856 modified "2023-09-26" @default.
• W244126856 title "Satellite Collision Modeling with Physics-Based Hydrocodes: Debris Generation Predictions of the Iridium-Cosmos Collision Event and Other Impact Events" @default.
• W244126856 cites W1564963410 @default.
• W244126856 cites W1568658147 @default.
• W244126856 cites W1967467371 @default.
• W244126856 cites W1990591454 @default.
• W244126856 cites W2050386932 @default.
• W244126856 cites W2098893304 @default.
• W244126856 hasPublicationYear "2010" @default.
• W244126856 type Work @default.
• W244126856 sameAs 244126856 @default.
• W244126856 citedByCount "2" @default.
• W244126856 countsByYear W2441268562018 @default.
• W244126856 crossrefType "journal-article" @default.
• W244126856 hasAuthorship W244126856A5015539250 @default.
• W244126856 hasAuthorship W244126856A5028756806 @default.
• W244126856 hasAuthorship W244126856A5048574353 @default.
• W244126856 hasAuthorship W244126856A5076068864 @default.
• W244126856 hasAuthorship W244126856A5081049940 @default.
• W244126856 hasConcept C117740565 @default.
• W244126856 hasConcept C121332964 @default.
• W244126856 hasConcept C121704057 @default.
• W244126856 hasConcept C127413603 @default.
• W244126856 hasConcept C1276947 @default.
• W244126856 hasConcept C146978453 @default.
• W244126856 hasConcept C153294291 @default.
• W244126856 hasConcept C18949120 @default.
• W244126856 hasConcept C19269812 @default.
• W244126856 hasConcept C2776023875 @default.
• W244126856 hasConcept C2779662365 @default.
• W244126856 hasConcept C38652104 @default.
• W244126856 hasConcept C41008148 @default.
• W244126856 hasConcept C44870925 @default.
• W244126856 hasConceptScore W244126856C117740565 @default.
• W244126856 hasConceptScore W244126856C121332964 @default.
• W244126856 hasConceptScore W244126856C121704057 @default.
• W244126856 hasConceptScore W244126856C127413603 @default.
• W244126856 hasConceptScore W244126856C1276947 @default.
• W244126856 hasConceptScore W244126856C146978453 @default.
• W244126856 hasConceptScore W244126856C153294291 @default.
• W244126856 hasConceptScore W244126856C18949120 @default.
• W244126856 hasConceptScore W244126856C19269812 @default.
• W244126856 hasConceptScore W244126856C2776023875 @default.
• W244126856 hasConceptScore W244126856C2779662365 @default.
• W244126856 hasConceptScore W244126856C38652104 @default.
• W244126856 hasConceptScore W244126856C41008148 @default.
• W244126856 hasConceptScore W244126856C44870925 @default.
• W244126856 hasLocation W2441268561 @default.
• W244126856 hasOpenAccess W244126856 @default.
• W244126856 hasPrimaryLocation W2441268561 @default.
• W244126856 hasRelatedWork W1620300917 @default.
• W244126856 hasRelatedWork W1966851587 @default.
• W244126856 hasRelatedWork W1991751945 @default.
• W244126856 hasRelatedWork W2023301445 @default.
• W244126856 hasRelatedWork W2036779735 @default.
• W244126856 hasRelatedWork W2061885728 @default.
• W244126856 hasRelatedWork W2136149038 @default.
• W244126856 hasRelatedWork W2261531035 @default.
• W244126856 hasRelatedWork W2272878950 @default.
• W244126856 hasRelatedWork W2300447314 @default.
• W244126856 hasRelatedWork W2321089544 @default.
• W244126856 hasRelatedWork W2348680307 @default.
• W244126856 hasRelatedWork W2360897927 @default.
• W244126856 hasRelatedWork W2502824092 @default.
• W244126856 hasRelatedWork W2569471216 @default.
• W244126856 hasRelatedWork W2765343173 @default.
• W244126856 hasRelatedWork W2986244395 @default.
• W244126856 hasRelatedWork W744607674 @default.
• W244126856 hasRelatedWork W818595297 @default.
• W244126856 hasRelatedWork W437580871 @default.
• W244126856 isParatext "false" @default.
• W244126856 isRetracted "false" @default.
• W244126856 magId "244126856" @default.
• W244126856 workType "article" @default.