Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Martin Schimmerohn"'
Publikováno v:
Acta Astronautica. 199:425-435
We present new developments to a discrete element model designed to simulate hypervelocity impacts between on-orbit satellites and space debris. The advantage of the discrete element-based simulation method is its ability to accurately model fragment
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4d2c6f75fd0964773c919d9522c4e2cd
https://doi.org/10.1016/j.actaastro.2022.07.044
https://doi.org/10.1016/j.actaastro.2022.07.044
Autor:
Stephan Busch, Peter A. Koss, Clemens Horch, Konstantin Schäfer, Martin Schimmerohn, Frank Schäfer, Frank Kühnemann
The advancement in miniature satellite technology and its increasing usage in scientific and commercial applications presents new and unique challenges, particularly for pointing requirements. These small platforms, often limited in resources, are pa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7f9a8c68b6e4486222cbf9f80d862e9e
https://publica.fraunhofer.de/handle/publica/442236
https://publica.fraunhofer.de/handle/publica/442236
Autor:
Frank Schäfer, Thomas Kenkmann, Marie Arnika Gärtner, M. Ebert, Stefan Hergarten, Martin Schimmerohn, Gulde Max
The earliest ejection process of impact cratering involves very high pressures and temperatures and causes near-surface material to be ejected faster than the initial impact velocity. On Earth, such material may be found hundreds to even thousands of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f1d22b7a3a16b09b73c7262c180da275
https://doi.org/10.1130/2021.2550(16)
https://doi.org/10.1130/2021.2550(16)
Publikováno v:
Acta Astronautica. 156:297-300
The characteristics of ejecta are the crucial element in the concept of kinetic impact deflection of asteroids. The mass and velocity distribution of particles ejected from the impact site determine the enhancement of the momentum transferred by the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a8b3dc867f203d53cc9d4ed3d1f899de
https://doi.org/10.1016/j.actaastro.2018.01.046
https://doi.org/10.1016/j.actaastro.2018.01.046
Autor:
Nathanaël Durr, Erkai Watson, Martin Schimmerohn, Holger Krag, Pascal Matura, Anja Altes, Don de Wilde, T. Cardone, Frank Schäfer
Hypervelocity collisions are predicted to be the dominant space debris source in the mid-term future, when a critical spatial density of satellites is reached. The NASA Standard Satellite Breakup Model (SSBM) has been adopted by major space agencies
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c437a2f00b917345cda115729a24e27c
https://publica.fraunhofer.de/handle/publica/264260
https://publica.fraunhofer.de/handle/publica/264260
Electrical signatures of hypervelocity impact plasma with applications in in-situ particle detection
Publikováno v:
Acta Astronautica. 101:157-164
Hypervelocity impacts of micrometeoroid and space debris particles can produce a highly transient plasma cloud that shows a spectrum of distinct electrical phenomena ranging from charge production to electrostatic field and electromagnetic wave gener
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3f35d3e99abc9a53c9d9a5836d0f17a0
https://doi.org/10.1016/j.actaastro.2014.04.016
https://doi.org/10.1016/j.actaastro.2014.04.016
Autor:
José Ignacio Muro Morales, D. McKissock, X. Marc, Martin Schimmerohn, A. O'Connell, M. Otten, M. Wermuth, Vitali Braun, Jan Siminski, I. Shurmer, M. Serrano, M. Catania, Holger Krag, P. Kuchynka, D. Kuijper, Isidro Muñoz
Sentinel-1A is a 2-ton spacecraft of the Copernicus Earth observation program operated by ESA's Space Operations Centre in Darmstadt, Germany. Sentinel-1A and its sister spacecraft Sentinel-1B operate in a sun-synchronous orbit at about 700 km altitu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::81c65a92124506c09f17fdb51a72206a
https://publica.fraunhofer.de/handle/publica/248508
https://publica.fraunhofer.de/handle/publica/248508
Publikováno v:
Procedia Engineering. :624-633
One phenomenon observed at hypervelocity impacts (HVI) is the generation of plasma with a very short lifetime of a few microseconds. Due to this short lifetime, characteristic plasma parameters such as the electron density and the electron temperatur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8711e8386959b6007d856fbc5a2439ec