![]() ![]() The critical point can vary depending on the type of analysis and the configuration of your model. The worst case event could be one of the following: ![]() The motion file is used to extract that worst case event at a critical point on a vessel withing a 3 hour storm. This ensures that an extreme event is simulated for each case, but within a shorter simulation duration therefore reducing the total analysis time. Using this time origin you can then run each case for a shorter duration, e.g., 100s. To reduce the total simulation time, you can run a simplified version of each case for the 3 hour duration and extract the time origin of the extreme wave sequence. Considering that the number of cases in a case matrix will ususally be more than a few, running all for the 3 hour duration is very time consuming. In general, irregular wave analysis requires at least a 3 hour storm to capture an extreme wave sequence. However, if regular wave analysis is required the motion file concept can be ignored. To demonstrate the full capability of DynaFlex this tutorial will perform and irregular wave analysis. The motion file is only required for irregular wave analysis. With our static base case created we can move on to our motion file. ![]()
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March 2023
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