Analiza havarije turbopunjača gospodarskog vozila

undergraduate thesis

• Title (english): Analysis of a commercial vehicle turbocharger breakdown
• Author: Zlatko Ćorić
• Mentor: Darko Landek (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2023-03-02, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering

Abstract

U teorijskom dijelu rada opisana je povijest razvoja i primjene turbopunjača, princip rada motora s turbopunjačem te dijelovi turbopunjača, s naglaskom na materijalima i proizvodnim postupcima za njihovu izradu i najčešćim kvarovima.
U eksperimentalnom dijelu rada analizirana je havarija turbopunjača izuzetog iz gospodarskog vozila. Na istrošenim dijelovima kompresora i turbine turbopunjača provedena je kemijska analiza metodom fluorescentne spektrometrije, ispitivanje tvrdoće metodom Vickers te analiza mikrostrukture svjetlosnom mikroskopijom.
U diskusiji rezultata je opisan slijed događaja koji su prethodili havariji turbopunjača i glavni uzrok, lom spojnog vratila koji je u konačnici rezultirao havarijom i prestankom rada turbopunjača.

Abstract (english)

The theoretical part of the paper describes the history of the development and application of
turbochargers, the principle of operation of engines with turbochargers, and parts of
turbochargers, with an emphasis on materials and production procedures for their
manufacture, and the most common failures of turbochargers.
In the experimental part of the work, the failure of a turbocharger removed from a commercial
vehicle was analyzed. Chemical analysis using the fluorescence spectrometry method,
hardness testing using the Vickers method, and microstructure analysis using light
microscopy were performed on the worn parts of the compressor and turbocharger turbine.
In the discussion of the results, the sequence of events preceding the turbocharger failure and
the main cause, the fracture of the connecting shaft, which ultimately resulted in the failure
and cessation of operation of the turbocharger, are described.

• Keywords: turbopunjač; havarija; analiza trošenja; analiza loma
• Keywords (english): turbocharger; breakdown; analysis of wear; analysis of fracture
• Language: croatian
• URN:NBN: urn:nbn:hr:235:516952
• Study programme: Title: Mechanical Engineering; specializations in: Design, Process and Energy Engineering, Production Engineering, Engineering Modelling and Computer Simulation, Marine Engineering, Industrial Engineering and Management, Materials Engineering; Course: Materials Engineering; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka strojarstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka strojarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2023-02-23 10:53:01