Ultrazvučna dijagnostika u održavanju

undergraduate thesis

• Title (english): Ultrasound diagnostics in maintenance
• Author: Viktor Milosavljević
• Mentor: Dragutin Lisjak (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

Tema ovog završnog rada je dijagnostika u održavanju primjenom ultrazvuka. Rad se sastoji od teorijskog i praktičnog dijela. U teorijskom dijelu opisane su osnove ultrazvuka, ultrazvučne dijagnostike i primjene ultrazvuka u industriji. Praktični dio rada je bio da se pomoću eksperimentalnih metodu (Sonavu kamera i simulator kvarova ležajeva) testiraju različiti kvarovi ležajeva. Na temelju praktičnog rada napravljena je analiza rezultata i izveden zaključak o prednostima i nedostacima ove metode.
Ultrazvučna tehnologija postaje sve važnija u prediktivnom održavanju tehničkih sustava zbog stanja, praćenja i pouzdanosti, zahvaljujući krivulji brzog učenja, jednostavnosti zbog jednostavnosti primjene, fleksibilnosti i brzog učenja. Otkrivanje propuštanja raznih armaturnih spojeva danas je jedna od najčešćih primjena ultrazvuka, a sve se više koristi za dijagnostiku specifičnih mehaničkih kvarova i kvarova električnih instalacija.
Eksperimentalne metode pomažu pri lakšem snalaženju u praksi tako da inspektor zna prepoznat vrstu kvara na simulatoru te mu to omogućuje lakše snalaženje u stvarnosti. Primjer u ovom praktičnom radu je bio da se testiraju različiti kvarovi ležaja. Na taj način inspektor prepoznaje kako otprilike zvuči ležaj sa određenim kvarom te na taj način on može prepoznat pokvareni ležaj u praksi.

Abstract (english)

The topic of this paper is diagnostics in maintenance using ultrasound. The work consists of a
theoretical and a practical part. In the theoretical part, the basics of ultrasound, ultrasound
diagnostics and applications of ultrasound in industry are described. The practical part of the
paper was to test various bearing failures using experimental methods (Sonavu camera and
bearing failure simulator). Based on the practical work, an analysis of the results was made
and a conclusion was drawn on the advantages and disadvantages of this method.
Ultrasonic technology is becoming increasingly important in predictive maintenance of
technical systems due to condition, monitoring and reliability, thanks to the fast learning
curve, simplicity due to ease of application, flexibility and rapid learning. Detecting the
leakage of various reinforcing joints is one of the most common applications of ultrasound
today, and it is increasingly used for the diagnosis of specific mechanical and electrical
installation failures.
Experimental methods help with easier navigation in practice so that the inspector knows how
to recognize the type of failure on the simulator and this enables him to navigate in reality
more easily. An example in this practical work was to test different bearing failures. In this
way, the inspector recognizes what a bearing with a certain defect sounds like, and in this way
he can recognize a broken bearing in practice.

• Keywords: ultrazvuk; ultrazvučna dijagnostika; održavanje; prediktivno održavanje
• Keywords (english): ultrasound; ultrasound diagnostics; maintenance; predictive maintenance
• Language: croatian
• URN:NBN: urn:nbn:hr:235:241073
• Study programme: Title: Mechanical 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: 2023-02-27 14:39:05