Search found 11 matches

by Shuijin.Li
Wed Mar 03, 2021 5:15 am
Forum: Computer-Aided Engineering Software Tools
Topic: The strange amplitude growth of motions of the barge platform
Replies: 2
Views: 268

Re: The strange amplitude growth of motions of the barge platform

Dear Shuijin, Are you using the FAST model of the ITI Energy barge or something else? Which version of FAST (or OpenFAST) are you using? Without any mooring system, there is no restoring of the platform-yaw degree of freedom. So any excitation in yaw will cause the system to move and not come back....
by Shuijin.Li
Tue Mar 02, 2021 2:08 pm
Forum: Computer-Aided Engineering Software Tools
Topic: The strange amplitude growth of motions of the barge platform
Replies: 2
Views: 268

The strange amplitude growth of motions of the barge platform

Hello everyone, I am repeating the barge platform case in FAST. First, I would like to conduct a case of the barge platform without neither tower nor mooring lines. The tower is removed by setting a very small density of the tower and blades. Only 6 degrees of freedom of the platform is allowed in E...
by Shuijin.Li
Wed Apr 29, 2020 3:36 pm
Forum: Computer-Aided Engineering Software Tools
Topic: FAST theory manual
Replies: 375
Views: 82862

Re: FAST theory manual

Dear Dr. Jonkman,

Could you please send me a copy of FAST theory manual by email?

My email is: skli@dundee.ac.uk

Thank you very much for your help!

Best regards,
Shuijin
by Shuijin.Li
Mon Jan 13, 2020 10:35 am
Forum: Computer-Aided Engineering Software Tools
Topic: Modelling of a single point mooring system
Replies: 4
Views: 1525

Re: Modelling of a single point mooring system

Dear Shuijin, You can choose to enter a stiffness matrix in FAST / OpenFAST rather than to enable a mooring module. The 6x6 stiffness matrix can be specified as AddClin in HydroDyn. Presumably you also have a 6x1 vector of preloads, which you can enter as AddF0 in HydroDyn. I'm not aware of any cap...
by Shuijin.Li
Mon Jan 13, 2020 9:52 am
Forum: Computer-Aided Engineering Software Tools
Topic: Modelling of a single point mooring system
Replies: 4
Views: 1525

Re: Modelling of a single point mooring system

Dear Shujin, The error you receiving doesn't seem related to MooDyn. Instead, the error that is causing FAST to abort is relating to the mesh-mapping search for ED_L_2_AD_L_T, which is the mesh-mapping search between the ElastoDyn Line2 tower motion output mesh and the AeroDyn Line2 tower motion in...
by Shuijin.Li
Sat Jan 11, 2020 4:33 pm
Forum: Computer-Aided Engineering Software Tools
Topic: Modelling of a single point mooring system
Replies: 4
Views: 1525

Modelling of a single point mooring system

Dear Dr. Jonkman, I'm modelling a single point mooring system by MoorDyn. I use the "Connect" type to connect the taught lines and the catenary lines. The program is crashed when I run it. The messages are shown below: Running MoorDyn (v1.01.02F, 8-Apr-2016). Creating mooring system. 3 fai...
by Shuijin.Li
Tue Jun 18, 2019 6:26 am
Forum: Computer-Aided Engineering Software Tools
Topic: FAST theory manual
Replies: 375
Views: 82862

Re: FAST theory manual

Dear Dr. Jonkman,

Could you please send me a copy of "Fast Theory Manual"?
My email address is: skli@dundee.ac.uk.

Thank you for your kindly help in advance.

Sincerely,
Shuijin
by Shuijin.Li
Wed Nov 21, 2018 2:42 pm
Forum: General
Topic: Model a Multi-Turbine Floating Offshore Wind Turbine
Replies: 6
Views: 3927

Re: Model a Multi-Turbine Floating Offshore Wind Turbine

Dear Shuijin, NREL does not provide extensive documentation on how to modify the FAST source code. That said, our goal with OpenFAST is to establish an open-source, code-development community for wind energy-related multi-physics applications built around the FAST modularization framework. I would ...
by Shuijin.Li
Wed Nov 21, 2018 1:08 pm
Forum: General
Topic: Model a Multi-Turbine Floating Offshore Wind Turbine
Replies: 6
Views: 3927

Re: Model a Multi-Turbine Floating Offshore Wind Turbine

Jason.Jonkman wrote:Dear Shuijin.Li,

Are you asking for documentation on how to use FAST or how to modify the FAST source code?

Best regards,


Hello, Dr Jonkman

I would like to know how to modify the FAST source code.

Thank you,
Shuijin
by Shuijin.Li
Wed Nov 21, 2018 10:21 am
Forum: General
Topic: Model a Multi-Turbine Floating Offshore Wind Turbine
Replies: 6
Views: 3927

Re: Model a Multi-Turbine Floating Offshore Wind Turbine

Dear Shuijin.Li, Without extensive modifications of the source code, FAST cannot model multiple wind turbines attached to a single floating platform. Best regards, Dear Dr Jonkman Thanks for your reply! So modelling with FAST is possible, albeit with great difficulty. May I ask is there any manual ...
by Shuijin.Li
Wed Nov 21, 2018 7:42 am
Forum: General
Topic: Model a Multi-Turbine Floating Offshore Wind Turbine
Replies: 6
Views: 3927

Model a Multi-Turbine Floating Offshore Wind Turbine

Hi, everyone

I'm new to FAST. I need to analyse a multi-turbine floating offshore wind turbine by using FAST. How can I model a new structure with FAST? If FAST does not work on this, how to import new structure into FAST to analyse?

Best,
Shuijin

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