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Multi-body hydrodynamic interaction analysis in OrcaWave. Use when setting up coupled vessel models, side-by-side operations, FPSO-tanker interactions, gap resonance studies, or hydrodynamic shielding calculations.
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正在显示 SKILL.md
| name | orcawave-multi-body |
| description | Multi-body hydrodynamic interaction analysis in OrcaWave. Use when setting up coupled vessel models, side-by-side operations, FPSO-tanker interactions, gap resonance studies, or hydrodynamic shielding calculations. |
| type | reference |
| version | 1.0.0 |
| updated | "2026-01-17T00:00:00.000Z" |
| category | engineering |
| triggers | ["multi-body hydrodynamics","side-by-side operation","coupled vessel analysis","FPSO tanker interaction","gap resonance","hydrodynamic shielding","STS transfer","offloading operation"] |
| capabilities | [] |
| requires | [] |
| tags | [] |
| scripts_exempt | true |
from digitalmodel.orcawave.multibody import MultiBodyAnalysis
# Initialize multi-body analysis
mb = MultiBodyAnalysis()
# Add primary vessel (FPSO)
mb.add_body(
name="FPSO",
mesh_file="geometry/fpso_panels.gdf",
*See sub-skills for full details.*
### Gap Resonance Analysis
```python
from digitalmodel.orcawave.multibody import GapResonanceAnalyzer
# Initialize gap resonance analyzer
gap = GapResonanceAnalyzer()
# Configure gap geometry
gap.configure(
vessel1="FPSO",
vessel2="Shuttle_Tanker",
*See sub-skills for full details.*
### Side-by-Side Operations
```python
from digitalmodel.orcawave.multibody import SideBySideAnalysis
# Initialize STS analysis
sts = SideBySideAnalysis()
# Configure vessels
sts.configure_fpso(
mesh="geometry/fpso.gdf",
loa=300.0,
*See sub-skills for full details.*
### Hydrodynamic Coupling Matrices
```python
from digitalmodel.orcawave.multibody import CouplingMatrixExtractor
# Extract coupling matrices
extractor = CouplingMatrixExtractor()
# Load multi-body results
extractor.load_results("results/multibody.owr")
# Get coupled added mass (12x12 for 2 bodies)
*See sub-skills full details.*
```python
digitalmodel.orcawave.multibody ShieldingAnalyzer
shielding = ShieldingAnalyzer()
shielding.load_multibody_results()
*See sub-skills full details.*
- [orcawave-analysis](../orcawave-analysis/SKILL.md) - Single body diffraction
- [orcawave-mesh-generation](../orcawave-mesh-generation/SKILL.md) - Panel mesh creation
- [orcawave-to-orcaflex](../orcawave-to-orcaflex/SKILL.md) - Export to OrcaFlex
- [mooring-design](../mooring-design/SKILL.md) - Mooring system design
- Faltinsen, O.M.: Sea Loads on Ships Offshore Structures
- Newman, J.N.: Wave Effects on Deformable Bodies
- Molin, B.: On the Piston Sloshing Modes Moonpools
- OrcaWave Multi-Body Documentation
---
**Version History**
- **** (-01-): Initial release STS analysis, gap resonance, coupling matrix extraction
- [Best Practices](best-practices/SKILL.md)
- [Error Handling](error-handling/SKILL.md)
- [Version Metadata](version-metadata/SKILL.md)
- [Common Scenarios (+)](common-scenarios/SKILL.md)
- [Multi-Body Analysis Configuration (+)](multi-body-analysis-configuration/SKILL.md)
- [CLI Usage](cli-usage/SKILL.md)
- [Export Time-Domain](export--time-domain/SKILL.md)
OrcaWave topics (`data/llm-wiki/orcawave/`):
- `Data,Bodies.md` -- multi-body definition (multiple bodies per model)
- `Data,Constraints.md` -- inter-body constraints
- `Data,Springdampers.md` -- external stiffness/damping between bodies
- `Theory,Dampinglid.md` -- damping lid gap resonance suppression
- `Results,Addedmassanddamping.md` -- coupled AMD matrices (NxN body DOFs)
- `Data,Calculationandoutput.md` -- multi-body output control
OrcaFlex topics (`data/llm-wiki/orcaflex/`):
- `Vesseltypes,Multibodydata.md` -- multi-body vessel data OrcaFlex
- `Vesseltheory,Impulseresponseandconvolution.md` -- coupled time-domain approach
Papers (`data/llm-wiki/papers/`):
- `Buoy-Vessel-Modelling.md` -- buoy-vessel interaction modelling