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math.DS2026
Port-Hamiltonian modelling of coupled rigid/flexible multibody systems
Thomas Berger, René Hochdahl, Timo Reis +1
We develop a port-Hamiltonian framework for coupled rigid/flexible multibody systems. The rigid dynamics may be nonlinear and subject to configuration and velocity constraints, whi…
math.OC2026
Analysis and funnel control for nonlinear drill strings
Thomas Berger, Thavamani Govindaraj, Pushya Mitra +1
We study the output tracking problem for a vertically driven drill string system described by a nonlinear boundary-coupled PDE-ODE model. Solvability analysis of the drill string m…