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Siconos is an Open Source scientific software primarily targeted at modeling and simulating nonsmooth dynamical systems :
  • 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 electrical circuits with ideal and piecewise linear components 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 systems and Variational inequalities), Biology (Gene regulatory network), Fluid Mechanics and Computer graphics, ....


DynamY is a C++ class library for the simulation of mechanical systems with unilateral contacts and friction, which was developped in the course of a Ph.D. thesis [Studer 2008] at the Center of Mechanics (IMES) at the ETH Zurich. In contrast to most software codes, dynamY does not use regularized but set-valued force laws to model the unilateral contacts and friction [Glocker 1995, Glocker 2001]. The numerical integration is performed using Moreau's time-stepping scheme [Moreau 1988].


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