BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:Negative imaginary systems theory: An introduction - Alexander Lan
 zon\, University of Manchester
DTSTART:20241127T140000Z
DTEND:20241127T150000Z
UID:TALK224974@talks.cam.ac.uk
CONTACT:Fulvio Forni
DESCRIPTION:The negative imaginary systems notion broadly means that the o
 utput of a system follows\, but lags behind\, a sinusoidal input by not mo
 re than 180 degree phase lag. In a SISO LTI setting\, this means that the 
 positive frequency branch of the Nyquist plot has a negative imaginary par
 t from where the name arises. It turns out that these systems are highly s
 uited to capture\, for example\, inertial dynamics of mechanical systems (
 e.g. robots\, large space structures\, etc) because the input-output map f
 rom force (or torque) actuation to colocated position (or angular position
 ) measurement possess this property as a simple consequence of Newton’s 
 second law of motion. Negative imaginary systems theory is related\, but c
 omplementary\, to passivity theory. This talk will give a brief introducti
 on to negative imaginary systems theory and will outline some of the key r
 esults in this area.\n\nThe seminar will be held in the LR3B \, Department
  of Engineering\, and online (zoom): https://newnham.zoom.us/j/92544958528
 ?pwd=YS9PcGRnbXBOcStBdStNb3E0SHN1UT09
LOCATION:LR3B\, Department of Engineering and online (Zoom)
END:VEVENT
END:VCALENDAR