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Uporaba nevronskih mrež pri modeliranju in vodenju odrezovalnih procesov : magistrska nalogaČretnik, SamoPri obdelovalnih procesih imamo opravka z neželjenimi vibracijami obdelovalnega orodja in obdelovanega materiala. Te vibracije se izkazujejo kot negativen pojav, saj vplivajo tako na obrabo orodja, ... kot na končno kakovost izdelka. V nalogi predstavimo razvoj in delovanje sistema za napoved in optimizacijo drdranja orodja med obdelovalnim procesom. Predlagan sistem temelji na umetni inteligenci s pomočjo nevronskih mrež, grajenih preko zajemanja eksperimentalnih meritev, optimizaciji rezultatov z genetskimi algoritmi ter splošnemu teoretičnemu znanju iz tehnoloških procesov. Nevronske mreže so učinkovito orodje za eksperimentalno modeliranje prediktivnih nelinearnih odrezovalnih procesov, medtem ko so genetski algoritmi najbolj primerna preiskovalna metoda, ki je uporabna za reševanje zahtevnih optimizacijskih problemov. Prediktivno vodenje kot osnova označuje različne strategije vodenja, ki uporabljajo model za napovedovanje prihodnjih stanj procesa. Na podlagi nevronske mreže za modeliranje procesa in genetskega algoritma za izračun krmilnih tirnic, izdelamo shemo nelinearnega prediktivnega vodenja obdelovalnega procesa. Predobdelavo podatkov povežemo z nevronskimi mrežami v celovit postopek modeliranja procesov. Metodologijo modeliranja nato uporabimo pri analizi drdranja orodja med obdelovalnim procesom ter za analizo pravilnosti predikcije rezultatov. Izdelano shemo uporabimo za simulacijo prediktivnega vodenja obdelovalnega procesa in pokažemo, kako je mogoče s krmiljenjem nosilca orodja učinkovito izboljšati kakovost obdelave.Type of material - master's thesisPublication and manufacture - Maribor : [S. Čretnik], 2003Language - slovenianCOBISS.SI-ID - 8088854
Author
Čretnik, Samo
Other authors
Balič, Jože |
Čuš, Franc, 1953-
Topics
nevronske mreže |
genetski algoritmi |
napovedovanje |
optimiranje |
odrezovalni proces |
neural networks |
genetic algorithms |
prediction |
optimisation |
cutting process
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Library | Call number – location, accession no. ... | Copy status |
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Library of Technical Faculties, Maribor | pisarna A-003 (FERI) MD ČRETNIK S. UPORABA | available - reading room |
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Čretnik, Samo | 22424 |
Balič, Jože | 04011 |
Čuš, Franc, 1953- | 08634 |
Source: Personal bibliographies
and: SICRIS
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