Statička analiza pomorske fiksne rešetkaste strukture

master's thesis

• Title (english): Static analysis of offshore jacket structure
• Author: Robert Orlović
• Mentor: Ivan Ćatipović (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2023-07-17, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Shipbuilding; Design of Floating and Maritime Structures

Abstract

Unutar ovoga diplomskog rada provedena je statička analiza fiksne rešetkaste strukture. Analiza je provedena za operativne i ekstremne uvjete za 12 smjerova nailaska okolišnih opterećenja. Uz okolišna opterećenja razmatrana su opterećenja vlastitih težina, opterećenja opreme i ostalog procesnog postrojenja. Od okolišnih opterećenja razmatrani su valovi, morska struja i vjetar. Nakon modeliranja strukture i formiranja kombinacija opterećenja za ekstremne i operativne uvjete, provedena je statička analiza fiksne rešetkaste platforme. Za valnu teoriju korištena je Stokesova nelinearna teorija petoga reda, a za izračun hidrodinamičkih sila morske struje i valova korištena je Morisonova jednadžba. Statička analiza je provedena u programskom paketu SACS Offshore Structure Ultmate, koji se bazira na metodi konačnih elementa. Za provjeru strukturnog integriteta elemenata i spojeva korištena su pravila izdana od American Petroleum Institute (API) „Recommedned Practice for Planning, Designing and Constructing Fixed Offshore Platforms-Working Stress Design, 22nd ed.“. Struktura je zadovoljila sve kriterije provjere unutar statičkih analiza.

Abstract (english)

Within this thesis, a static analysis of a jacket structure was carried out. The analysis was carried out for operational and extreme conditions for 12 directions of encountering environmental loads. With environmental loads, self weight loads, equipment loads and other process plant loads were considered. Environmental load considerations include waves, sea currents and wind. After modeling the structure and forming a combination of loads for extreme and operational conditions, a static analysis of the fixed jacket platform was performed. Stokes' fifth-order nonlinear theory was used for the wave theory, and Morison's equation was used to calculate the hydrodynamic forces of the sea current and waves. The analysis was carried out in the SACS Offshore Structure Ultmate software package, which is based on the finite element method. To check the structural integrity of elements and connections, the rules issued by the American Petroleum Institute (API) "Recommended Practice for Planning, Designing and Constructing Fixed Offshore Platforms-Working Stress Design, 22nd ed." were used. The structure met the criteria of all checks within the static analysis.

• Keywords: Ključne riječi: Statička analiza fiksne rešetkaste strukture; metoda konačnih elemenata; valna opterećenja; Morisonova jednadžba; provjera spojeva; kombinirano opterećenje
• Keywords (english): Keywords: Static analysis of jacket structure; finite element method; wave loads; Morison's equation; joint check; combined load
• Language: croatian
• URN:NBN: urn:nbn:hr:235:540278
• 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: 2023-07-14 10:33:31