Comments on “On the dynamics of non-rigid asteroid rotation”
Comments on “On the dynamics of non-rigid asteroid rotation”
- Neue Suche nach: Ovchinnikov, M.Yu.
- Neue Suche nach: Roldugin, D.S.
- Neue Suche nach: Ovchinnikov, M.Yu.
- Neue Suche nach: Roldugin, D.S.
Abstract In the commented paper the authors claim to find the solutions for the non-rigid asteroid rotation equations. The asteroid moves on an elliptic orbit and a new method is applied for the Euler equation solution. However, despite the challenging problem definition found in the introduction and highlights, a simplified approximation is covered. Namely, the asteroid motion is close to the rotation around the axis of the maximum moment of inertia. The ultimate result of the paper, that is the equations for the angular momentum component perpendicular to this axis, is correct only under specific assumptions. Small deviations from the rotation around the maximum inertia axis are analyzed. One of the angular momentum components is neglected. As a result, the omitted terms in the equations of motions have the same, or even higher, order of magnitude as the retained terms.
Highlights Recent paper “On the dynamics of non-rigid asteroid rotation” is discussed. Major mistake in a core equation is outlined. Overall paper methodology and composition are discussed.
Dokumentinformationen
Comments on “On the dynamics of non-rigid asteroid rotation”
Acta Astronautica ; 170 ; 452-453
2020-01-12
2 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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