Uporaba kompozitnih materialov pri nosilnih konstrukcijah žerjavov

Križaj, Robert (author), Jerman, Boris (mentor)

Žerjavi so transportna sredstva, ki se uporabljajo v večini industrijskih panog. Namen magistrskega dela je preveriti, kakšne so možnosti za zamenjavo klasične jeklene nosilne konstrukcije žerjava s konstrukcijo iz kompozitnih materialov, ter oceniti, v kolikšni meri bi lahko s tem znižali njegovo maso. V delu je predstavljen izbor vrste žerjava, ki je primerna za zamenjavo, in izbor primernih kompozitnih materialov, ki bi lahko nadomestili jeklo. V delu je predstavljen izračun, prilagojen za dimenzioniranje konstrukcij iz kompozitnih materialov. Ustreznost analitičnih rezultatov je bila preverjena in potrjena z MKE. Rezultati so pokazali, da se z uporabo kompozitnih materialov lahko izdela nosilno konstrukcijo, ki prenaša zahtevano breme, in hkrati zmanjša maso nosilne konstrukcije žerjava.

• Language: Slovenian
• Keywords: mostni žerjavi, kompozitni materiali, nosilne konstrukcije, kompozitni nosilci, lokalne izbočitve
• Work type: Master's thesis/paper
• Typology: 2.09 - Master's Thesis
• Organization: FS - Faculty of Mechanical Engineering
• Place of publishing: Ljubljana
• Publisher: [R. Križaj]
• Year: 2023
• Number of pages: XXIV, 75 str.
• PID: 20.500.12556/RUL-148517
• UDC: 621.874:624.016(043.2)
• COBISS.SI-ID: 164906243
• Publication date in RUL: 25.08.2023

Secondary language

• Language: English
• Title: The use of composite materials in the supporting structures of cranes

Abstract

Cranes are transportation devices used in most industries. The purpose of the master’s thesis is to check the possibilities of replacing the classic steel supporting structure of the crane with a structure made of composite materials and to assess the extent to which its mass could be reduced. The work presents a selection of crane type that is suitable for replacement, as well as a selection of suitable composite materials that could replace steel. The work presents a calculation, which was adapted for the dimensioning of structures made of composite materials. The adequacy of the results of the analyses was checked and confirmed by FEM. The results showed that by using composite materials it is possible to create a support structure that can withstand the intended load and at the same time reduce the weight of the crane support structure.

• Keywords: overhead cranes, composite materials, supporting structures, composite beams, local buckling