Projektiranje konstrukcije pristupne rampe za plovni pristan

undergraduate thesis

• Title (english): Structural design of access ramp of floating dock
• Author: Tin Dolšak
• Mentor: Jerolim Andrić (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; Shipbuilding; Constructive of Floating and Maritime Structures

Abstract

Tema ovog rada je projektiranje konstrukcije pristupne rampe za plovni pristan.
Projektiranje je provedeno kroz tri faze. U prvoj su fazi dimenzionirani konstrukcijski elementi prema projektnim formulama i pravilima Hrvatskog registra broda (HRB) za klasifikaciju brodova unutarnje plovidbe [1]. Razmatrane su dvije projektne varijante za inicijalnu geometriju zadanu predloškom.
U drugoj fazi projektiranja, na osnovu geometrije iz predloška, su napravljeni geometrijski modeli u programu Rhinoceros [2]. Zatim su geometrijski modeli uneseni u program FEMAP [3], gdje su modelirani globalni modeli za obje projektne varijante te je provedena kontrola globalnih odziva metodom konačnih elemenata (MKE). Temeljem tih rezultata zaključeno je da je paluba s uzdužnim ukrepama povoljnija od one s poprečnim te se ona uzima u daljnje razmatranje.
Projektiranje završava fazom u kojoj su napravljene preinake modela na odabranoj varijanti tako da konstrukcija zadovoljava kriterije dozvoljenih naprezanja i izvijanja.
U konačnici, prema konačnoj konstrukciji napravljeni su nacrti pristupne rampe na razini klasifikacijske dokumentacije.

Abstract (english)

The topic of this paper is structural design of access ramp of floating dock.
The design is carried out in three phases. In the first phase, structural elements are defined according to design formulas and rules of the Croatian Register of Shipping (CRS) of Inland Navigation Vessels [1]. Two project variants are considered for the initial geometry given by the template.
In the second phase of designing, according to geometry from template, geometry models are created in the program Rhinoceros [2]. Then geometry model is imported in program FEMAP [3]. Global models are modeled for both project variants and control of global responses is carried out using finite element method (FEM). Based on these results, it is concluded that the deck with longitudinal members is more favorable than the one with transverse members. This variant is selected in the following consideration.
Designing ends with the phase in which model modifications are made on the selected variant so that the structure satisfies the criteria of permissible stresses and deflection.
In the end, according to the final structure, drawings of the access ramp are made at the level of the classification documentation.

• Keywords: pristupna rampa; plovni pristan; HRB pravila; metoda konačnih elemenata; kriterij dozvoljenih naprezanja; kriterij izvijanja
• Keywords (english): access ramp; floating dock; CRS rules; finite element method; criteria of permissible stresses; criteria for buckling stress
• Language: croatian
• URN:NBN: urn:nbn:hr:235:130536
• Study programme: Title: Naval Architecture; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka brodogradnje (sveučilišni prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka brodogradnje)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2023-02-23 09:58:23