Prognoza buke na Ro-Ro putničkom brodu

master's thesis

• Title (english): Noise prediction on board Ro-Ro passenger ship
• Author: Ivan Lončar
• Mentor: Nikola Vladimir (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2017-07-21, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Shipbuilding
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering; Marine Mechanical Engineering

Abstract

Buka na brodovima, koja nastaje uslijed rada brodskih strojeva i uređaja, danas predstavlja važan projektni kriterij te je stoga razine buke potrebno držati u propisanim granicama, kako bi se osigurao adekvatan komfor posade i putnika. To je osobito izraženo kod brodova namijenjenih prijevozu putnika. U ovom diplomskom radu izrađena je prognoza razina buke za Ro-Ro putnički brod za prijevoz 600 putnika i 145 automobila hibridnom statističkom analizom energije. Za tu svrhu korišten je komercijalni programski paket Designer-NOISE. Opisana je osnovna problematika vezana za buku na brodovima, s naglaskom na zakonsku regulativu. Objašnjeni su osnovni pojmovi te je dan prikaz suvremenih metoda analize buke, opis korištenog programskog paketa, tehnički opis broda, kao i detaljna specifikacija postupka izrade numeričkog modela. Prikazan je popis izvora buke i odgovarajućih zvučnih razina koje oni uzrokuju. Provedena je analiza senzitivnosti rezultata na debljine zvučne izolacije, kao i ocjena primjenjivosti korištenog programskog paketa. Također, predložene su mjere za smanjenje buke na zadanom brodu.

Abstract (english)

Nowadays, noise on board ships induced by the operation of ship machinery and equipment, represents an important project criterion and it is important that noise levels are kept within the prescribed limits to ensure the adequate comfort of crew and passengers. This is particularly true for ships intended for the transportation of passengers. In this thesis, the noise prediction on board Ro-Ro passenger ship intended for transportation of 600 passengers and 145 cars has been performed by means of the hybrid Statistical Energy Analysis.. A general commercial software Designer-NOISE was used. Basic description of noise issues in ships with the emphasis on rules and regulations is given. Also, basic terms are described together with the description of advanced methods for noise prediction, outline of the used software, technical description of the analysed ship as well as detailed specification of numerical model generation and preparation. Noise sources and induced noise levels are listed. A sensitivity analysis was performed with respect to sound insulation, as well as the assessment on the applicability of the used software. Finally, some technical measures for noise level reduction on board the analysed ship were proposed.

• Keywords: buka; Ro-Ro putnički brod; hibridna statistička analiza energije; zvučna izolacija
• Keywords (english): noise; Ro-Ro passenger ship; Hybrid Statistical Energy Analysis; sound insulation
• Language: croatian
• URN:NBN: urn:nbn:hr:235:752535
• Study programme: Title: Mechanical Engineering; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka strojarstva (magistar/magistra inženjer/inženjerka strojarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2019-05-22 19:59:43