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A question about MoorDyn of OpenFAST in IEA22MW #3358

@HEU-LKZ

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@HEU-LKZ

Hello everyone, I am trying to simulate the towline arrangement for towing a floating wind turbine using MoorDyn in OpenFAST. Below is my MoorDyn file. I encountered the following error message:

"FAST_InitializeAll: NaN state detected."

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I suspect the issue is with my MoorDyn file, because when I replaced it with the original MoorDyn file of the IEA 22 MW turbine downloaded directly from GitHub, the problem disappeared.

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I don't understand why this error occurs. Could anyone kindly help me?

In fact, I have already made corresponding adjustments in the ElastoDyn and HydroDyn modules for the displaced mass, coordinates, etc., under towing conditions.

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