, Duration: 13:26*Enlace a Spanish version
Materials: [ Cód.: MuvsKalvsHinffilterENG.mlx ] [ PDF ]
This video presents the modeling of a mass-spring-damper system with an
uncertain damping coefficient, subject to an unknown force input with limited
bandwidth (that is, it will be the output of a first-order filter). The LFT modeling
is detailed, leaving the uncertainty separated from the plant. The outputs that
will be necessary to solve a problem of optimal design of force estimators will be
also discussed. Here we insist on the concept of LFT uncertainty modeling,
because I consider it an important didactic objective per se... but in this case of
real parametric uncertainty, we can leave the job of setting up the LFT to Matlab
and make everything easier, as seen for this same system in the video
[
The actual design of the observers via h2, hinf or mu synthesis will be
addressed in the video [
*Link to my [ whole collection] of videos in English. Link to larger [ Colección completa] in Spanish.