Ansys Learning Forum Forums Discuss Simulation General Mechanical Power line cable behavior simulation Reply To: Power line cable behavior simulation

OROI
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The force data is correct because the current has DC offset and 180 degrees phase shift between lines, when line-line short circuit happens. So that causes electromagnetic force look like this and another cable force sign is opposite. Also i made current data points from picture so that's why it is not that sinusoidal looking.
To me is odd that why initial stage changes affects to step 4 simulation error, because earlier with instant earth gravity and 150/415 stress value setting it was working with full force without problem, except that i can't change steel support more stiff, but i was able to add three vertical cables to model.

Here is picture, with that old earth gravity setup with added vertical cables. Cable drops between 1.2-1.6 seconds and causes quite high force to horizontal cable fixation point of steel support. This is the problematic point in new initial stage setup. I'm trying to match my simulation results to real world experimental results. So that's why i need to adjust the model. In my model the cable tension is about 2kN too low compared to experimental results and also cable sag is higher in my model.
Here is experimental results of that same measuring point: