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HOTINT/MBS Overview

HOTINT is a C++ flexible multibody system and time integration software

rds: flexible mulitbody systems, time integration, large scale multibody systems, contact, flexible Mehrkörpersysteme, flexibles Mehrkörpersystem Mehrkoerpersystem, finite elements, large deformation mulitbody, Kontakt, Zeitintegration, fast solution of multibody systems, complex multibody systems

Freeware version

The actual freeware version of the HOTINT flexible multibody simulation software includes:
  • Full Microsoft Windows interface
  • No compilation necessary, easy to use
  • Text files that can be user-generated
  • Rigid 3D body, Mass
  • Flexible ANCF beam element
  • Standard 3D joints
  • Actuators, springs, dampers, controllers, prescribed motion, etc.
  • Sensors to measure displacement, rotation, ... 
  • Dynamic solver (see time integration on right)
  • Solver for static problems (initial values, static equilibrium)
Windows interface is under development for:
  • User defined elements
  • General contact
  • Moving mass / variable mass
  • Sparse matrices

The software can be used for any scientific or commercial application (except military) at own risk. The developer of HOTINT does not assume any liability for the program package HOTINT, the results obtained with its use or any other damage due to HOTINT.

Full research version

The actual research version of HotInt/MBS is capable of (available throught the source code):
  • Rigid 2D / 3D bodies, mass points
  • Flexible 2D / 3D bodies: beam and plate elements (absolute nodal coordinate formulation), standard finite elements
  • Standard joints 2D/3D; 2D/3D general contact, friction, sliding
  • Actuators, springs, dampers, hydraulics, controllers
  • User defined elements
  • Elasto-plasticity
  • Moving mass / variable mass
  • Fluid structure interaction
  • Solve large scale multibody systems with use of sparse matrix methods
  • Tested for sytems with several 1000s of bodies and 10000s of  degrees of freedom
  • Optimized and automated computation of Jacobians
  • Solver for static problems (initial values, static equilibrium)
  • For detailed informations on the theory behind look at Homepage of J. Gerstmayr
  • PDF-presentation of HOTINT/MBS
For papers related to HOTINT see all the publications!

High order time integration software:

  • High Order Implicit Runge Kutta Time Integrator
  • Time integration for flexible and rigid multibody systems
  • Especially for implicit Gauss, Lobatto and Radau methods
  • Variable step size, arbitrary order and method (defined in text file)
  • 3D graphical tool (OPEN-GL) included (developed by Yury Vetyukov)
  • Source code for Time integration developed in Visual Studio.NET is available if you use it for scientific research only, if you sign a scientific agreement which I can send you upon request and if you send me the published papers where you used HOTINT.
  • HOTINT V1.0 (research version) - description (Time integration for flexible multibody systems)
  • paper related to code:
    J. Gerstmayr, M. Stangl
    , High-Order Implicit Runge-Kutta Methods for Discontinuous Multibody Systems, Proceedings of the XXXII Summer School APM’ 2004, June 24- July 1, Editor D.A. Indeitsev, pp. 162-169, St. Petersburg, Russia, 2004.



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last modified May 26, 2007 by Johannes Gerstmayr
High order time integration, Runge Kutta time integration, fully implicit Runge Kutta methods
Multibody systems, flexible multibody systems, flexible multibody dynamics
Solution of flexible multibody dynamics, large scale multibody systems, large scale flexible multibody systems,
fast time integration flexible multibody systems,
multibody systems contact, flexible multibody systems plasticity,
multibody systems and finite elements, absolute nodal coordinate formulation,
continuum mechanics multibody systems, constraints and joints multibody systems,
fast solvers multibody systems, finite elements, elasto-plastic multibody systems plasticity and damage,
starre Mehrkörpersysteme, flexible Mehrkörpersyteme, Zeitintegration, implizite Runge Kutta Methoden,
Finite elemente (FE) und Mehrkörpersysteme