Siconos
{{short description|Open source scientific software for modeling non-smooth dynamical systems}}
{{Infobox software
| name = SICONOS - SImulation and COntrol of NOnsmooth Systems
| developer = INRIA
| latest_release_version = 4.3.0
| latest_release_date = {{Start date and age|2020|05|05|df=yes}}
| operating_system = Linux, Mac, Windows
| programming language = C++, C, Python
| screenshot = siconos3 snapshot.png
| screenshot size = 250px
| logo = siconos logo.png
| logo size = 250px
| genre = Framework
| license = Apache License 2.0
| website = {{URL|siconos.gforge.inria.fr}}
| repo = {{URL|https://github.com/siconos/siconos/releases/latest}}
}}
SICONOS is an open source scientific software primarily targeted at
modeling and simulating non-smooth dynamical systems (NSDS):
{{citation
|last1=Acary
|first1=Vincent
|last2=Brogliato
|first2=Bernard
|title=Numerical Methods for Nonsmooth Dynamical Systems
|series=Lecture Notes in Applied and Computational Mechanics
|year=2008
|url= https://www.springer.com/materials/mechanics/book/978-3-540-75391-9
|volume=35
|doi=10.1007/978-3-540-75392-6
|isbn=978-3-540-75391-9
}}
- Mechanical systems (Rigid body or solid) with Unilateral contact and Coulomb friction as we find in Non-smooth mechanics, Contact dynamics or Granular material.
- Switched Electrical Circuit such as Power converter, Rectifier, Phase-locked loop (PLL) or Analog-to-digital converter
- Sliding mode control systems
Other applications are found in Systems and Control (hybrid systems, differential inclusions, optimal control with state constraints), Optimization (Complementarity problem and Variational inequality) Biology Gene regulatory network, Fluid Mechanics and Computer graphics, etc.
Components
The software is based on 3 main components{{citation
|last1=Acary
|first1=Vincent
|last2=Perignon
|first2=Franck
|title=An introduction to Siconos.
|journal=INRIA Technical Report, Pp. 45. RT-0340
|url=http://hal.inria.fr/inria-00162911/en
|year=2007 |type=report
}}
- Siconos/Numerics (C API). Collection of low-level algorithms for solving basic Algebra and optimization problems arising in the simulation of nonsmooth dynamical systems
- Linear complementarity problem (LCP)
- Mixed linear complementarity problem (MLCP)
- Nonlinear complementarity problem (NCP)
- Quadratic programming problems (QP)
- Friction-contact problems (2D or 3D) (Second-order cone programming (SOCP))
- Primal or Dual Relay problems
- Siconos/Kernel. API C++ that allows one to model and simulate the nonsmooth dynamical systems. It contains
- Dynamical systems classes : first order one, Lagrangian systems, Newton-Euler systems
- Nonsmooth laws : complementarity, Relay, Friction, Contact, impact
- Siconos/Front-end (API Python) Mainly an auto-generated SWIG interface of the API C++ which a special support for data structure.
Performance
According to peer reviewed studies published by its developers, Siconos was approximately five times faster than Ngspice or ELDO (a commercial SPICE by Mentor Graphics) and 250 times faster than PLECS when solving a buck converter.{{cite book|editor=Francesco Vasca and Luigi Iannelli|title=Dynamics and Control of Switched Electronic Systems: Advanced Perspectives for Modeling, Simulation and Control of Power Converters|year=2012|publisher=Springer Science & Business Media|isbn=978-1-4471-2884-7|pages=446–447|chapter=Time-Stepping via Complementarity|author=Vincent Acary}}Acary, V., Bonnefon, O., Brogliato, B. (July 2010) "[https://hal.archives-ouvertes.fr/file/index/docid/423550/filename/IEEEpaper.pdf Time-Stepping Numerical Simulation of Switched Circuits Within the Nonsmooth Dynamical Systems Approach]", Computer-Aided Design of Integrated Circuits and Systems, IEEE Transactions on (Volume:29, Issue: 7), pp. 1042-1055, {{doi|10.1109/TCAD.2010.2049134}}
See also
- {{annotated link|Differential inclusion}} (an extension of the notion of differential equation) on which much of the NSDS theory relies
- {{annotated link|Non-smooth mechanics}}
- {{annotated link|Contact dynamics}}
- {{annotated link|Rigid body dynamics}}
- {{annotated link|Collision detection}}
- {{annotated link|Complementarity theory}}
- {{annotated link|Stiff equation|Stiffness}}, which affects ODEs/DAEs for functions with "sharp turns" and which affects numerical convergence
References
External links
- [http://siconos.gforge.inria.fr The official Siconos site]
- [http://haltools.inrialpes.fr/Public/afficheRequetePubli.php?auteur_exp=acary&CB_auteur=oui&CB_titre=oui&CB_article=oui&css_prive=http://bipop.inrialpes.fr/people/acary/CSShal.css&langue=Anglais&tri_exp=annee_publi&tri_exp2=typdoc&ordre_aff=TA&__utma=197383159.1567354679.1253654614.1255333653.1255379940.8&__utmz=197383159.1255333653.7.3.utmccn=(organic)|utmcsr=google|utmctr=jean%20acary%20monerie|utmcmd=organic&menu=Export&Fen=Aff&css=http://bipop.inrialpes.fr/people/acary/CSShal.css] other related publications
{{Physics engines}}
{{DEFAULTSORT:SICONOS - SImulation and COntrol of NOnsmooth Systems)}}
Category:Free science software
Category:Free software programmed in C
Category:Free software programmed in C++
Category:Software using the Apache license
Category:Cross-platform free software
Category:Free software for Linux
Category:Free software for Windows