New & Noteworthy

1. General information

Version no. 4.4.0
Date 2022-10-04

2. SIMA Documentation

Visit the new web page https://sima.sintef.no

Check the web page for
- Online documentation
- Examples
- Video tutorials

Figure 1. Web page

3. Wind turbines

RIFLEX now supports multiple wind turbines with external control systems.
- Previously only one wind turbine could have an external control system, any additional turbines had to have internal control systems.
- Control systems operate individually on each turbine
- It is also possible to make control systems interact e.g., for park level control logic

Figure 2. Multiple wind turbines

4. Wind turbines

Support of TurbSim v2.0 for wind field generation.
- In order to generate periodic wind fields, the default value of UsableTime is set to ALL. For v1.0 the UsableTime is set equal to the AnalysisTime

TurbSim is a third-party software developed by NREL

Six new signals are added to the avrSwap array used for a Bladed-style controller:
- Blade 1-3 root out-of-plane bending moment
- Rotor azimuth angle
- Yaw bearing My (the yaw bearing element is specified by the user)
- Nacelle nodding acceleration.

Figure 3. Wind turbines

5. Aquaculture

Fish nets are now visualized in 3D for axisymmetric cross sections with net loads
SIMA fish farm example fish cage and well boat is extended with a model including only the fish cage. Examples include both regular and irregular waves.

Figure 4. Fish cage and well boat

6. Riflex

Description	JIRA reference
RIFLEX now supports multiple wind turbines with external control systems. Previously only one wind turbine could have an external control system.	SRV-1832
Hydrodynamic loads may now be exported for specified elements. The added mass contribution is not included. For elements with time domain VIV loading (restricted functionality), the relative velocity and the different load contributions may also be exported.	SRV-1867
Time domain VIV loads (restricted functionality): Cross flow and inline displacement envelope curves are stored on the .mpf file.	SRv-1866
Fish nets are now visualized in 3D for axisymmetric cross sections with net loads	SIMA-9874
Time domain fatigue: If stress from curvature is chosen, the cross-sectional diameter and the elastic modulus must be greater than zero. Zero values will terminate the program	SRV-1822
Computation of wave kinematics in updated position is now available for coupled models	SRV-1883
Bar elements and SIMO bodies are now allowed in a VIVANA analysis	SIMA-9927
SIMA fish farm example Cage Boat is extended with a model including only the fish cage. Examples include both regular and irregular waves.	SIMA-9965
Fatigue in frequency domain in VIVANA using Rayleigh distribution can now be calculated using bi-linear SN-curves.	SRV-1029

Description

JIRA reference

RIFLEX now supports multiple wind turbines with external control systems. Previously only one wind turbine could have an external control system.

SRV-1832

Hydrodynamic loads may now be exported for specified elements. The added mass contribution is not included. For elements with time domain VIV loading (restricted functionality), the relative velocity and the different load contributions may also be exported.

SRV-1867

Time domain VIV loads (restricted functionality): Cross flow and inline displacement envelope curves are stored on the .mpf file.

SRv-1866

Fish nets are now visualized in 3D for axisymmetric cross sections with net loads

SIMA-9874

Time domain fatigue: If stress from curvature is chosen, the cross-sectional diameter and the elastic modulus must be greater than zero. Zero values will terminate the program

SRV-1822

Computation of wave kinematics in updated position is now available for coupled models

SRV-1883

Bar elements and SIMO bodies are now allowed in a VIVANA analysis

SIMA-9927

SIMA fish farm example Cage Boat is extended with a model including only the fish cage. Examples include both regular and irregular waves.

SIMA-9965

Fatigue in frequency domain in VIVANA using Rayleigh distribution can now be calculated using bi-linear SN-curves.

SRV-1029

7. SIMA

Description

JIRA reference

Added six new signals to the avrSwap array used for the Bladed-style controller: Blade 1-3 root OPB moment, rotor azimuth angle, yaw bearing My, nacelle nodding acceleration.

SIMA-9919

SIMA now supports use of TurbSim v2.0 for wind field generation.

SIMA-9670

Possible to choose log axis in plots opened from the navigator.

SIMA-9942

Do While loop is added to the workflow.

SIMA-7694

Automatic restart of 3D visualization playback is now possible.

SIMA-9894

It is now possible to export the python code needed to recreate a model using File→Export→Python model export from the main menu.

SIMA-9913

Now possible to set a tolerance level for VerificationTask tests. New parameter "file" is also added to test command in SIMA runtime engine to get test status output as a JSON file

SIMA-9949

Create and paste/import from clipboard operations now handles default values and scripts.

SIMA-9596

"Copy with dependencies" context menu now works on multiple selected objects

SIMA-9931

A new SIMA related web site https://sima.sintef.no has been published with online documentation and examples.

SIMA-9977

A section with frequently asked questions (FAQs) is added to the documentation. This section contains topics related to SIMA, modelling and scripting.

SSRv-1872