DAEs and PDEs in elastic multibody systems |
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Authors: | Simeon B |
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Institution: | 1.Fachbereich Mathematik, TU Darmstadt, Schlo?gartenstra?e 7, D-64289, Darmstadt, Germany ; |
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Abstract: | Elastic multibody systems arise in the simulation of vehicles, robots, air- and spacecrafts. They feature a mixed structure
with differential-algebraic equations (DAEs) governing the gross motion and partial differential equations (PDEs) describing
the elastic deformation of particular bodies. We introduce a general modelling framework for this new application field and
discuss numerical simulation techniques from several points of view. Due to different time scales, singular perturbation theory
and model reduction play an important role. A slider crank mechanism with a 2D FE grid for the elastic connecting rod illustrates
the techniques.
This revised version was published online in June 2006 with corrections to the Cover Date. |
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Keywords: | DAEs elastic multibody systems numerical simulation slider crank 65L05 70-08 |
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