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Optimal motion compensation for suspended loads

Authors: Grindvik, Mathias Hatle;

Optimal motion compensation for suspended loads

Abstract

Offshore kranoperasjoner er ofte kritiske operasjoner under krevende forhold som krever mye av kranoperatøren. Dette gjør at behovet for teknologiske løsninger er svært høy. Svingende laster er en sikkerhetsbekymring som kan skade både materiell og i verste fall personell. Med et anti-sleng kontrollsystem dempes denne uønskede svingingen, og kranoperatøren blir avskåret fra avgjørende roller, noe som resulterer i en mye mer effektiv operasjon. I denne avhandlingen blir en matematisk modell av den hengende lasten presentert, og dens bevegelseslikninger blir funnet ved bruk av Euler-Lagranges metode. En ulineær anti-sleng kontroller er utviklet basert på Lyapunov analyse og det er bevist at den gjør systemet eksponentielt stabilt. I tillegg til anti-sleng kontrolleren blir det brukt en PID-kontroller for å flytte kranen som styrt av kranoperatøren samt opprettholde ønsket posisjon. Anti-sleng Kontrolleren er testet i simuleringer for ulike utfordrende scenarioer med og uten operatør involvert, og den viser seg å være svært effektiv for å dempe uønskede svingninger i lasten.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green