CDS 140b: Control of Bifurcations and Limit Cycles

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This page contains my lecture outline and notes for a set of lectures that I will be giving in CDS 140b Introduction to Dynamics, in Winter 2008. This page is mainly intended as a place for me to keep my notes, but might be useful as a reference for the lecture (the final lecture notes will be posted on the CDS 140 web page).

Goals

  • Describe how bifurcations and limit cycles arise in engineering applications
  • Review some tools for characterizing bifurcations and limit cycles
  • Show how feedback can be used for design of (nonlinear) dynamics

Lecture 1: Introduction and review

Outline
  • Motivating applications: compression systems, combustion, cavity flows
  • Project ideas
  • Review of bifurcations and normal forms
  • Review of Lyapunov-based stabilization
Lecture Materials
Reading

Notes

Lecture 2: Control of bifurcations

Outline
  • Bifurcation control through nonlinear feedback
  • Effects of actuation limits
  • Example: compression system instabilities
Lecture Materials
Reading

Notes

Lecture 3: Control of limit cycles

Outline
  • Motivating examples: combustion and cavity instabilities
  • Control oriented modeling techniques
  • Describing function analysis
Lecture Materials
Reading

Notes

Lecture 4: Additional topics

Outline
Lecture Materials
Reading

Notes

Homework and Project Ideas