Static Equilibrium Extension #201
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rossbar
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Dec 21, 2023
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| Define distance *a* as 3 meters | ||
| Define distance *a* as 3 meters. The ball joint at A can apply reaction forces, but no reation torques. |
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Suggested change
| Define distance *a* as 3 meters. The ball joint at A can apply reaction forces, but no reation torques. | |
| Define distance *a* as 3 meters. The ball joint at A can apply reaction forces, but no reaction torques. |
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| As before, start by defining the location of each relevant point as an array. | ||
| As before, start by defining the location of each relevant point as an array. For this problem vertical arrays are more convenient. |
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This is not obvious - in fact, I'd argue that carrying around the extra dimension in the shape makes it more difficult to interpret the arrays. AFAICT, the main reason for doing so is so that the hstack-ing works when constructing the system matrix. Instead of introducing the extra dimension at the beginning of the processing, I'd vote for simply adding a "dummy" dimension for the hstack, i.e. something like:
unknown_forces = np.hstack((Unit_BD[:, np.newaxis], Unit_BE[:, np.newaxis], np.eye(3)))There was a problem hiding this comment.
Just a quick ping on this one @h2o-DS - WDYT? If you don't have the bandwidth to make these updates but are not opposed to them, I'd be happy to push them up!
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Fixed some formatting and extended the static equilibrium tutorial to include np.linalg.solve()