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Title:Upravljanje procesa izgorevanja v Rijkejevi cevi
Authors:ID Pušenjak, Rudi (Author)
ID Oblak, Maks (Author)
Files:URL http://www.drustvozamehaniko.si/zbornik/ZbornikKD2008.pdf
 
Language:Slovenian
Work type:Unknown
Typology:1.08 - Published Scientific Conference Contribution
Organization:FS - Faculty of Mechanical Engineering
Abstract:Članek obravnava upravljanje neustaljenih nihanj avtonomnega nihala z eno prostostno stopnjo, kakršna se pojavljajo v procesu izgorevanja v Rijkejevi cevi. Upravljanje procesa izgorevanja v Rijkejevi cevi modeliramo z van der Polovim nihalom. Za obravnavo neustaljenih nihanj je v članku uporabljena razširjena Lindstedt-Poincarejeva (EL-P) metoda z več časovnimi skalami. S pomočjo te metode ugotovimo, da so neustaljena nihanja skoraj periodična, amplituda in faza nihanj pa funkciji počasne časovne skale. Brez upravljanja dotoka goriva je proces izgorevanja nestabilen in samovzbujena nihanja težijo k limitnemu ciklu. Z upravljanjem dotoka goriva zadušimo samovzbujena nihanja, s čemer dosežemo asimptotično stabilno stanje.
Keywords:avtonomno nihalo, neustaljeno nihanje, zgorevanje, Rijkejeva cev, numerični rezultati
Year of publishing:2008
PID:20.500.12556/DKUM-26266 New window
UDC:531.53:539.913
COBISS.SI-ID:12631062 New window
NUK URN:URN:SI:UM:DK:NNYBXRUV
Publication date in DKUM:31.05.2012
Views:2369
Downloads:46
Metadata:XML DC-XML DC-RDF
Categories:Misc.
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Secondary language

Language:English
Title:Control of combustion process in Rijke tube
Abstract:Paper treats the control of nonstationary oscillations of autonomous single degree of freedom oscillator as arises in the combustion process of Rijke tube. The control of combustion process in Rijke tube is modelled by the van der Pol oscillator. For a study of nonstationary oscillations, the Extended Lindstedt-Poincare method with multiple time scales is used in the paper. By applying the EL-P method, it is ascertained, that nonstationary oscillations are almost periodic with amplitude and phase, which are functions of the slow time scale. Without control of the fuel influx, the combustion process is unstable and self excited oscillations tend to approach the limit cycle. By applying the fuel control, the self excited oscillations are quenched to reach the asimptotic stable state.
Keywords:autonomous singel degree oscillator, nonstationary osscilations, combustion, Rijke tube, numerical results


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