Analiza porinuća primjerom zakretnog saonika

master's thesis

• Title (english): Analysis of tipping table launching method
• Author: Renata Benković
• Mentor: Jerolim Andrić (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2015-07-16, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Shipbuilding

Abstract

Horizontalno građevno mjesto optimalna je tehnološka osnova za gradnju suvremenih brodova i objekata morske tehnike. Porinuće primjenom zakretnih saonika objekata građenih na horizontalnom građevnom mjestu relativno je nova i još uvijek nedovoljno istražena tehnologija koju karakterizira složena kinematika s dodatnim stupnjem slobode gibanja u odnosu na klasične načine porinuća. Razmatranje te nove tehnologije porinuća započeto je sistematizacijom postojećih klasičnih metoda porinuća uz kratak osvrt na dinamiku porinuća. Opisane su osnovne tehnološke značajke porinuća sa zakretnih saonika: sredstva za transport objekata s građevnog mjesta na saonike, geometrija sustava saonik-saonice-objekt te oprema saonika (pakovanje, maziva, zaporni uređaji, zaustavljači). Teorija porinuća sa zakretnih saonika postavljena je izvođenjem jednadžbi gibanja metodom dinamičke ravnoteže generaliziranih sila za pojedine faze porinuća. Sustav spregnutih diferencijalnih jednadžbi gibanja rješen je numerički primjenom eksplicitne Runge-Kutta metode s promjenjivim vremenskim korakom. Postavljena teorija validirana je na primjeru pontona i tankera, te je provedena parametarska analiza kako bi se prepoznao značaj pojedinih varijabli na porinuće.

Abstract (english)

Horizontal berth is an optimal technological basis for contemporary shipbuilding processes. Launching of objects built on the horizontal berth by tipping table method is a relativly new and still not fully explored technology characterized by complex kinematics with an additional degree of freedom in comparison to traditional launching methods. Systematization of different launching methods (along with analysis of dynamics) is given as a starting point for theoretical development of tipping table launching method. Basic technological characteristics, such as transportational methods of objects from the horizontal berth to the tipping table, geometry of the system being launched and specific equipment used are also presented. By analysing the dynamic equilibrium of generalized forces for different launching phases, theory of launching by tipping table is defined. System of coupled differential equations of motion is solved numerically using the explicit Runge-Kutta method with variable time step. Launching theory has been validated for the chosen poonton and tanker vessels. In order to identify the most influential variables with respect to the launching dynamics, a dedicated parametrical analysis has also been performed.

• Keywords: porinuće; zakretni saonik; parametarska analiza; tehnologija
• Keywords (english): launching; tipping table; parametric analysis; technology
• Language: croatian
• URN:NBN: urn:nbn:hr:235:350674
• Study programme: Title: Naval Architecture; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka brodogradnje (magistar/magistra inženjer/inženjerka brodogradnje)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2019-05-22 14:02:11