Ispitivanje alternativnog materijala obloga sanjki helikoptera Bell 206B

master's thesis

• Title (english): Testing of Alternative Skid Shoe Material for Bell 206B Helicopter
• Author: Anita Peran
• Mentor: Mirko Jakopčić (mentor)
• Mentor: Ted Vrkić (komentor)
• Committee member: Tatjana Gazivoda Kraljević (predsjednik povjerenstva)
• Committee member: Mirko Jakopčić (član povjerenstva)
• Granter: University of Zagreb; (Croatian Defence Academy "Dr. Franjo Tuđman"); Zagreb
• Defense date and country: 2022-07-12, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Aviation, Rocket and Space Technology

Abstract

Tijekom eksploatacije helikoptera Bell-206BIII, a pogotovo tijekom slijetanja, najveće
opterećenje se javlja upravo na njegovom podvozju. U cilju prevencije sanjki helikoptera od
mehaničkog oštećenja, na donjoj površini sanjke ugrađene su obloge s dva navara, koje su
primarno izložene trenju i trošenju. Cilj ovoga rada je provesti laboratorijska ispitivanja
mehaničkih i triboloških svojstava materijala obloga sanjki helikoptera prema dominantnom
abrazijsko-erozijskom mehanizmu trošenja. Osim ispitivanja postojećeg materijala na
karakterističan tip trošenja, također je ispitan i alternativni materijal obloge, odnosno navara na
abrazijsko trošenje. Rezultati laboratorijskih ispitivanja pratećih materijala su analizirani i
uspoređivani, kako bi se došlo do zaključka o opravdanosti primjene pojedine inačice, prema
kriteriju doprinosa produljenju vijeka uporabe te optimizaciji samog procesa održavanja.

Abstract (english)

During the exploatation of the Bell-206BIII helicopter, and especially during the landing, the
greatest mechanical pressure occurs on its landing gear. In order to prevent helicopter skid from
mechanical damage, skid shoes with two welds are installed and subjected to a friction and a
wear. The purpose of this paper is to conduct laboratory tests of mechanical and tribological
properties of the material used to make skid shoes according to the dominant abrasion-erosion
wear mechanism. In addition to testing existing material for a particular type of wear, an
alternative material for skid shoes (welds) is also tested. The results of laboratory tests of the
mentioned materials are analyzed and compared in order to formulate a conclusion on the
justification of the application of each version in accordance with the criteria of contribution to
the extension of the service life and optimization of the maintenance process.

• Keywords: helikopter Bell-206BIII; obloga sanjki helikoptera; mehanička i tribološka svojstva; abrazijsko-erozijsko trošenje; alternativni materijal
• Keywords (english): Bell-206BIII helicopter; helicopter skid shoes; mechanical and tribological properties; abrasion-erosion wear; alternative material
• Language: croatian
• URN:NBN: urn:nbn:hr:249:145701
• Study programme: Title: Military Engineering; Study programme type: university; Study level: graduate; Academic / professional title: MAGISTAR/MAGISTRA INŽENJER/INŽENJERKA VOJNOG INŽENJERSTVA (MAGISTAR/MAGISTRA INŽENJER/INŽENJERKA VOJNOG INŽENJERSTVA)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2023-02-06 14:40:19