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master's thesis
Prigušenje vibracija trupa broda uslijed udaranja u valove
Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2022. urn:nbn:hr:235:526025
Čović, Ivan
University of Zagreb
Faculty of Mechanical Engineering and Naval Architecture

Institutional repository: Repository of Faculty of Mechanical Engineering and Naval Architecture University of Zagreb

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Čović, I. (2022). Prigušenje vibracija trupa broda uslijed udaranja u valove (Master's thesis). Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture. Retrieved from https://urn.nsk.hr/urn:nbn:hr:235:526025

Čović, Ivan. "Prigušenje vibracija trupa broda uslijed udaranja u valove." Master's thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2022. https://urn.nsk.hr/urn:nbn:hr:235:526025

Čović, Ivan. "Prigušenje vibracija trupa broda uslijed udaranja u valove." Master's thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2022. https://urn.nsk.hr/urn:nbn:hr:235:526025

Čović, I. (2022). 'Prigušenje vibracija trupa broda uslijed udaranja u valove', Master's thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, accessed 11 May 2024, https://urn.nsk.hr/urn:nbn:hr:235:526025

Čović I. Prigušenje vibracija trupa broda uslijed udaranja u valove [Master's thesis]. Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture; 2022 [cited 2024 May 11] Available at: https://urn.nsk.hr/urn:nbn:hr:235:526025

I. Čović, "Prigušenje vibracija trupa broda uslijed udaranja u valove", Master's thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Zagreb, 2022. Available at: https://urn.nsk.hr/urn:nbn:hr:235:526025

Metadata
TitlePrigušenje vibracija trupa broda uslijed udaranja u valove
Title (english)Damping ship's hull vibrations caused by slamming
AuthorIvan Čović
MentorAndrej Jokić (mentor)
GranterUniversity of Zagreb
Faculty of Mechanical Engineering and Naval Architecture
Zagreb
Defense date and country2022-12-15, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Mechanical Engineering
Precision Mechanical Engineering
Abstract
Nepoželjni utjecaj vibracija prilikom udara vala na brodsku konstrukciju stvara ograničenja koja se moraju uzeti u obzir prilikom konstrukcije brodova. Udarom vala, javlja se nepovoljan moment savijanja na sredini trupa broda zbog čega je potrebno smanjiti vibracije. U obzir se uzima fleksibilnost trupa broda za postavljanje matematičkog modela kod podrhtavanja broda (eng. whipping) koji je izložen udaru vala (eng. slamming). U ovom je radu razrađen model broda s pasivnom regulacijom u vidu dodanih masa, linearnih opruga i prigušivača. Isto tako, razrađen je i aktivni sustav regulacije kako bi se utjecalo na smanjenje odziva momenta savijanja na sredini trupa broda. Za izradu modela broda korištena je metoda konačnih elemenata, a za pasivnu su regulaciju korištene osnovne jednadžbe dinamičkog prigušivanja. Prilikom aktivne regulacije upotrijebljena je kombinacija PD regulatora.
Abstract (english)
Undesirable impact of whipping due to slamming of ship, creates limitations that must be taken into account during the construction of ships. Due to slamming, an unfavorable bending moment occurs in the middle of the ship's hull, which is why it is necessary to reduce the vibrations. The flexibility of the ship's hull is taken into account to set up a mathematical model for the whipping of the ship due to slamming. In this work, a model of a ship with passive control in the form of added mass, linear springs and dampers has been elaborated. Likewise, an active control system was developed in order to have an affect the reduction of the bending moment in the middle of the ship's hull. The finite element method was used to create the ship model, and the basic dynamic damping equations were used for passive control. During active control, a combination of PD controller was used.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:235:526025
Study programmeTitle: Mechanical Engineering
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka strojarstva (magistar/magistra inženjer/inženjerka strojarstva)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2022-12-01 08:44:03