Draft:CAESES

CAESES
DeveloperFRIENDSHIP SYSTEMS AG
Initial release1990s
Operating systemWindows, Linux
TypeEngineering software
LicenseCommercial proprietary software
Websitehttps://www.caeses.com

CAESES (formerly known as FRIENDSHIP-Framework) is a parametric modelling and engineering design optimisation software platform developed by FRIENDSHIP SYSTEMS AG.

The software is used in simulation-driven design workflows in which parametric geometry models are coupled with numerical simulation tools such as computational fluid dynamics (CFD) and other engineering analysis methods.[1]

The platform enables engineers to define geometry using parameterised relationships and procedural modelling techniques. These parametric models can automatically generate design variants for optimisation and design exploration studies.[2]

CAESES is used in engineering disciplines including marine engineering, turbomachinery design, aerospace engineering and energy systems where geometric shape strongly influences system performance.

Unlike conventional computer-aided design (CAD) systems that primarily focus on manual geometry modelling, CAESES is designed to automate geometry variation and integrate parametric models into simulation-driven design processes.[3]

History

The concepts underlying CAESES originate from research in parametric modelling and simulation-driven design carried out during the 1990s at the Technical University Berlin. Early work focused on methods for representing engineering geometries using mathematical parameterisation, enabling automated modification of shapes during optimisation studies.

These concepts were later commercialised by FRIENDSHIP SYSTEMS AG, a German engineering software company specialising in parametric modelling and optimisation technologies.

Early internal modelling platforms developed by the company included tools such as FRIENDSHIP-Modeler and FRIENDSHIP-Framework. These systems eventually evolved into CAESES.

Since its initial release, CAESES has been continuously developed as a platform for simulation-driven design and engineering optimisation.

Functionality

CAESES provides a parametric modelling environment designed to generate simulation-ready geometries that can be automatically modified during engineering design studies.

In contrast to traditional CAD systems that emphasise manual geometry creation, CAESES allows engineers to define geometry through parametric relationships, mathematical expressions and procedural modelling techniques. When parameters are changed, the software automatically regenerates the geometry, enabling systematic variation of design alternatives.

Typical capabilities include:

  • parametric geometry modelling
  • automated generation of design variants
  • design space exploration
  • workflow automation
  • optimisation studies
  • integration with external simulation tools

CAESES itself does not perform numerical simulations directly but is typically used in combination with external engineering analysis software.[4]

Simulation-driven design workflows

CAESES is commonly used within simulation-driven design workflows in which parametric geometry models are automatically varied and evaluated using engineering simulation.

In such workflows, engineers define a parametric model that represents a design concept. Design parameters are varied in automated processes to generate multiple geometry variants. Each variant is analysed using simulation tools, and optimisation algorithms are applied to identify designs that meet specified performance objectives while observing constraints.

These approaches are associated with methodologies including:

Parametric modelling platforms such as CAESES are used to automate geometry generation and maintain consistent model definitions during optimisation processes.[5]

Applications

CAESES has been applied in engineering research and industrial contexts where geometric shape has a significant influence on performance characteristics.

Examples of application areas include:

  • ship hull form optimisation
  • propeller and propulsion system design
  • turbomachinery component optimisation
  • aerodynamic component modelling
  • optimisation of fluid-dynamic systems

In marine engineering research, parametric hull models have been generated using CAESES to support hydrodynamic optimisation studies combining potential flow analysis and CFD methods.[6]

The platform has also been applied in optimisation studies involving fluid-dynamic systems such as valves and propulsion components.[7]

Integration and ecosystem

CAESES is designed to operate as part of broader engineering simulation workflows and can be integrated with third-party simulation tools and optimisation frameworks.

Examples include integration with hydrodynamic simulation software such as SHIPFLOW.[8]

The platform also participates in engineering software ecosystems through technology partnerships including the partner alliance of Altair Engineering.[9]

Academic and research use

CAESES has been referenced in engineering research publications investigating parametric modelling and simulation-driven design methodologies.

Academic studies have used the software to generate parametric models for optimisation of ship hulls, propulsion systems and other fluid-dynamic components.[10]

Parametric modelling approaches implemented in CAESES have also been applied in turbomachinery optimisation and aerodynamic design studies in which geometry models are coupled with CFD simulations.

See also

References

  1. ^ Harries, Stefan (2020). Practical Shape Optimization Using CFD. Springer.
  2. ^ Harries, Stefan (2019). CAESES – The HOLISHIP Platform. Springer.
  3. ^ Robust Geometry Variation for the CFD-Driven Optimization of Complex Geometries. NAFEMS UK Conference. 2020.
  4. ^ "Technology Partner – Friendship Systems". Ansys.
  5. ^ Parametric Modelling Techniques for Simulation Driven Design. NAFEMS Conference. 2018.
  6. ^ Grigoropoulos, Gregory J.; Bakirtzoglou, Christos; Papadakis, George; Ntouras, Dimitrios (2021). "Mixed-Fidelity Design Optimization of Hull Form Using CFD and Potential Flow Solvers". Journal of Marine Science and Engineering. 9 (11): 1234. Bibcode:2021JMSE....9.1234G. doi:10.3390/jmse9111234.
  7. ^ Olivetti, Micaela; Monterosso, Federico Giulio; Marinaro, Gianluca; Frosina, Emma; Mazzei, Pietro (2020). "Valve Geometry and Flow Optimization through an Automated DOE Approach". Fluids. 5 (1): 17. Bibcode:2020Fluid...5...17O. doi:10.3390/fluids5010017.
  8. ^ "SHIPFLOW–CAESES integration". Flowtech.
  9. ^ "Friendship Systems joins Altair Partner Alliance". Altair Engineering.
  10. ^ Speed-Power Optimized AUV Design by Coupling CAESES and NavCad. COMPIT Conference on Computer Applications in Shipbuilding. 2015.

Category:Engineering software Category:Computer-aided design software Category:Scientific simulation software

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