ECEF 6DOF block - Abb output

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Thomas
Thomas about 18 hours 前
In the ECEF 6DOF (Quaternion) block from Aerospace Blockset, there is an output labeled as "Abb - Accelerations in body-fixed axes" that is distinct from the inertial acceleration (Ab ff). The calculation for Abb appears to use the parameters of the ECEF frame to calculate the Coriolis and centrifugal terms, but I am unsure what the physical meaning of this quantity is.
I understand that if I wished to determine the acceleration of a point not at the body CG in the body-fixed frame, I would need to account for fictitious force terms (Coriolis, centrifugal, Euler) due to the moment arm between the CG and the point; however, this quantity appears to be something else. Any clarification would be appreciated.

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