incorporating reaction wheels in "Attitude Dynamics" box.
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Hi All;
Currently there is a useful, all-in-one box in simulink called "Attitude Dynamics" which is a compact form of simulating the attitude dynamics equations of a satellite. The dynamic equations used in the box is also summarized here. However it does not account for any reaction / momentum wheel dynamics. The wheel torque may be inserted through "Mb" input of the box however in the dynamic equations there should also be a term for "w_b_icrf x wheel_momentum". The question is as follows:
- Is there a way through the user interface of this box to incorporate wheel momentum and torque?
- if not is there another attitude dynamics box which takes wheel dynamics as input?
- if not, can you -in the future releases- include an external wheel momentum / and torque input to this box ?
Thanks
Gökhan
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Brahmadev
il 5 Nov 2024 alle 8:55
Based on the documentation mentioned by you, the "Attitude Dynamics" does not provide a direct method to incorporate wheel momentum into the dynamics equations.
Unfortunately, there are no other blocks which take into consideration the "Wheel dynamics". The "Spacecraft Dynamics" block also uses the same equations for Rotational Dynamics. Refer to the documentation page below:
Hence, you might need to create a custom subsystem in Simulink that models the dynamics according to your requirement. Alternatively, you can reach out to MathWorks Technical Support and share your use-case. You can create a technical support query at:
Hope this helps!
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