Order Reduction of Stii Solvers at Elastic Multibody Systems
نویسنده
چکیده
Elastic multibody systems arise in the simulation of vehicles, robots, air-and spacecrafts. After semidiscretization in space, a partitioned diierential-algebraic system of index 3 with large stiiness terms has to be solved. We investigate the behavior of numerical methods for stii ODEs and DAEs at this problem class and show that strong order reductions may occur. Examples from structural dynamics and multibody systems illustrate the results.
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