Analiza i konstruiranje nastavnog pomagala za teoriju vibracija

undergraduate thesis

• Title (english): Analysis and design of a teaching aid for vibration theory
• Author: Bruno Zanetti
• Mentor: Hinko Wolf (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2025-02-25, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering

Abstract

Vibracije su neizostavni dio industrije, a u današnje vrijeme kada sve ubrzano napreduje bitno je znati rješavati probleme koji se stavljaju pred inženjere. Kako bi problem vibracija bio što lakše rješiv bitno je od početka razumjeti kako vibracije nastaju i koji su postupci rješavanja istih.
Mehaničke vibracije su periodična ili kvaziperiodična gibanja mehaničkih sustava koja mogu nastati uslijed vanjskih uzbuda ili unutarnjih dinamičkih svojstava sustava. Isaac Newton svojim je drugim zakonom postavio temeljnu dinamiku čitave klasične mehanike, uključujući i analizu vibracija. Jean Baptiste le Rond d'Alembert tu je osnovu produbio razvojem d'Alembertova načela i matematičkih metoda za rješavanje gibanja niza praktičnih vibracijskih sustava, osobito kontinuiranih. Zajedno, njihova razmatranja omogućuju razradu općih jednadžbi za proučavanje, kontrolu i prigušenje mehaničkih vibracija te čine temelj suvremene teorije oscilacija.
U ovom radu dan je pregled triju koncepata nastavnog pomagala za razmatranje i proučavanje u nastavi koji će studentima olakšati shvaćanje vibracija. Svaki koncept se razlikuje po osnovnim dijelovima uređaja kao što su linearna vodilica, vozičak i uteg (masa). Nakon pregleda svih koncepata odabran je najbolji koncept koji je i konstrukcijski razrađen. Odabrani koncept razrađen je analitički te parametriziran i programiran u Matlabu.

Abstract (english)

Vibrations are an unavoidable part of today's industry, where everything is developing at fast pace. As engineers, it's important to be able to deal with presented challenges. For a better understanding of vibration problems it's crucial to understand how they occur and what necessary steps are needed to solve them.
Mechanical vibrations are periodic or quasi-periodic movements of mechanical systems that can appear due to external excitations or internal dynamic properties of the system. Isaac Newton's second law laid the foundation for the dynamics of classical mechanics, including vibration analysis. Jean-Baptiste le Rond d'Alembert development d'Alembert's principle and mathematical methods for solving the motion of various practical vibration systems, especially continuous vibration systems. Together, their work enabled the development of general equations for studying, controlling, and damping mechanical vibrations, which form the foundation of modern oscillation theory.
In this paper, an overview of three teaching approaches to vibration is given, which will make students' understanding of vibrations easier. Each concept differs from the others based on primary components such as linear guide, carriage and mass. After reviewing all concepts, the best one was chosen and structurally elaborated. The chosen concept is explored analytically, parametrized, and programmed in MATLAB.

• Keywords: Nastavno pomagalo za teoriju vibracija; analiza vibracija
• Keywords (english): Teaching aid for vibration theory; vibration analysis
• Language: croatian
• URN:NBN: urn:nbn:hr:235:761103
• 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: Embargoed access; Embargo expiration date: 2027-02-14
• Created on: 2025-02-21 11:00:02