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Title:OPTIMIRANJE OBLIKE NASTAVNIH ČELJUSTI ROČNIH KLEŠČ
Authors:ID Lenart, Sašo (Author)
ID Kegl, Marko (Mentor) More about this mentor... New window
ID Dolšak, Bojan (Comentor)
Files:.pdf MAG_Lenart_Saso_2009.pdf (3,16 MB)
MD5: 8A94C54F2A6213AAFC0CD1C4FE211B4E
PID: 20.500.12556/dkum/c77b5a18-af10-4cf3-a34a-8790df6bdb90
 
Language:Slovenian
Work type:Master's thesis
Organization:FS - Faculty of Mechanical Engineering
Abstract:Magistrska naloga zajema razvoj nove oblike univerzalnih klešč in klešč stranskih ščipalk. Uporabljena numerična metoda temelji na tehniki projektnih elementov in gradientni optimizaciji. Za projektne elemente smo uporabili Bezierjeva telesa, njihove kontrolne točke pa smo privzeli kot optimizacijske spremenljivke. Za trdnostno analizo z metodo končnih elementov smo projektne elemente diskretizirali z 20-vozliščnimi volumskimi končnimi elementi tipa Serendipity. Optimizacijsko nalogo smo formulirali tako, da smo dosegli čim večje zmanjšanje materialnih stroškov pri izdelavi (volumen klešč). Pri tem smo seveda morali izpolniti zahteve, ki se nanašajo na dovoljene napetosti, deformacije in trajnost klešč v skladu s predpisi, ki urejajo to področje. Razen zmanjšanja stroškov je optimizacija prinesla tudi osvežitev sedanje oblike z novejšo in povečanje funkcionalnost klešč.
Keywords:konstrukcija, optimizacija oblike, klešče, nastavna čeljust, univerzalne klešče, klešče stranske ščipalke
Place of publishing:Maribor
Publisher:[S. Lenart]
Year of publishing:2009
PID:20.500.12556/DKUM-10875 New window
UDC:624.072:621.7.077
COBISS.SI-ID:13385750 New window
NUK URN:URN:SI:UM:DK:B2VZR9XH
Publication date in DKUM:30.06.2009
Views:3924
Downloads:272
Metadata:XML DC-XML DC-RDF
Categories:KTFMB - FS
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Secondary language

Language:English
Title:SHAPE OPTIMIAL DESIGN OF THE PLIERS' NON-WORKING JAWS
Abstract:This work presents the development of a new shape of slip joint waterpump pliers and diagonal cutting nippers. The employed numerical method is based on the design element technique and gradient-based optimization. For the design elements the Bezier bodies have been selected and their control points have been chosen to act as optimization variables. For the structural analysis the 20-node volume finite element of the Serendipity type has been used. The optimization task was formulated so that we achieved maximal reduction of material cost (pliers volume) during production. During optimization we had to fulfill the requirements related to allowed stresses, deformations, and durability in accordance with the regulations for this field. Besides of cost reduction, the result of optimization was a new and fresh shape of the pliers and their increased functionality.
Keywords:construction, shape optimal design, pliers, non-working jaw, slip joint waterpump pliers, diagonal cutting nippers


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