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Motion Files, Forces and Moments
Once you have one or more structures inputted, it is possible to
enter a motion file to determine the structure's
behavior given certain inputs. Once
again, this is done with the use of an input file.
This is an example of a motion input file:
4
1 0.0 0.0 0.0 1.0 0.0 0.0 1.0 0.0 0.0
1 1.0 0.0 0.0 1.0 0.0 0.0 1.0 0.0 0.0
1 1.0 1.0 1.0 0.0 0.0 0.0 0.0 0.0 0.0
2 0.0 0.0 0.0 1.0 0.0 0.0 1.0 0.0 0.0
The first number, 4, refers to the total number of runs
to be carried out. It is followed by that many lines of tests, which
contain the following information:
The structure # to perform the test on (integer), U_1, U_2, U_3,
U_4, U_5, U_6, Udot_1, Udot_2, and Udot_3. (Note that
U_4 = Omega_1, U_5 = Omega_2, and U_6 = Omega_3).
The structure number may be any integer from 1-6, and may even
be 0 if you wish to perform tests on the default structure.
All numbers must be separated by at least one space, and no
commas are permitted. Each test is independently run only on
the structure specified. If you have inputted multiple structures,
it is possible to carry out different runs on different structures,
without the need to input a different motion file. Just make sure
the number of total runs is correct, and add as many runs as you want
with the appropriate structure number.
That's about all there is to it, really. If you want to learn more
about how Amass works, click here. This
file contains notes on how to make your structures more "correct,"
as well as how Amass works internally.
Once again, any questions realting to 13.021 in general or
Amass in particular should be sent to the
13.021 TA.
Justification and Tips
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