= Jan Høgsberg
{c}
\b[Jan Høgsberg], listed as \b[Jan Becker Høgsberg] in the DTU research directory, researches <structural dynamics>, damping and structural control. His primary university profile describes work on modeling structures and improving reduced models used for analysis and design.<Jan Becker Høgsberg profile at DTU>[Profile heading and research interests]{ref}
A 2025 study treats a <viscous damper> consisting of a <dashpot> in series with an <inerter>. Its design analysis shows how interaction with a building's <normal modes> can produce a resonant damping effect even though the isolated device lacks its own internal resonance. The study emphasizes retaining inertia and flexibility effects from modes that a simple reduced model would discard. Its demonstration is a numerical model of a 20-storey building, not a reported physical building test.<Tuning of a Viscous Inerter Damper: How to Achieve Resonant Damping Without a Damper Resonance by Jan Høgsberg>[Abstract, modal-interaction tuning and numerical example]{ref}
An original check for the ideal viscous part alone uses the force magnitude $F=cv$, with relative speed $v$ across the dashpot and positive damping coefficient $c$. If $c=4000\,\mathrm{N\,s\,m^{-1}}$ and $v=0.05\,\mathrm{m\,s^{-1}}$, then $F=200\,\mathrm{N}$ and the dissipated power is
$$
\mathcal P=Fv=cv^2=10\,\mathrm W.
$$
These illustrative values describe a constitutive element, not the complete composite damper or its tuned building response. Locating the element within the structure and accounting for its coupled motion are essential additional steps in <structural dynamics>.
DTU's https://orbit.dtu.dk/en/persons/jan-becker-h%C3%B8gsberg/[research profile and portrait page] documents the researcher.
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