Assessment of the stiffened panel performance in the OTEC seawater tank design:Parametric study and sensitivity analysis

作     者：Yogie Muhammad Lutfi Ristiyanto Adiputra Aditya Rio Prabowo Tomoaki Utsunomiya Erwandi Erwandi Nurul Muhayat Yogie Muhammad Lutfi;Ristiyanto Adiputra;Aditya Rio Prabowo;Tomoaki Utsunomiya;Erwandi Erwandi;Nurul Muhayat

作者机构：Department of Mechanical EngineeringUniversitas Sebelas MaretSurakarta 57126Indonesia Research Center for Hydrodynamics TechnologyNational Research and Innovation Agency(BRIN)Surabaya 60117Indonesia Department of Marine Systems EngineeringKyushu UniversityFukuoka 819-0395Japan 

出 版 物：《Theoretical & Applied Mechanics Letters》 (力学快报(英文版))

年 卷 期：2023年第13卷第4期

页      面：261-271页

核心收录：

学科分类：0808[工学-电气工程] 08[工学] 0824[工学-船舶与海洋工程] 

基　　金：part of the OTEC research activity"Preliminary Design of a 5 MW OTEC plant:Study case in the North Bali"research grand DIPA-124.01.1.690505/2023 conducted by the Marine Renewable Energy Conversion Technology research group Research Center for Hydrodynamics Technology National Research and Innovation Agency(BRIN) 

主　　题：Ocean thermal energy conversion(OTEC) Seawater tank Stiffened panels Numerical analysis Combined loadings 

摘      要：Ocean thermal energy conversion(OTEC)is a process of generating electricity by exploiting the temperature difference between warm surface seawater and cold deep *** to the high static and dynamic pressures that are caused by seawater circulation,the stiffened panel that constitutes a seawater tank may undergo a reduction in ultimate *** current paper investigates the design of stiffening systems for OTEC seawater tanks by examining the effects of stiffening parameters such as stiffener sizes and span-over-bay ratio for the applied combined loadings of lateral and transverse pressure by fluid motion and axial compression due to global bending *** ultimate strength calculation was conducted by using the non-linear finite element method via the commercial software known as *** stress and deformation distribution due to pressure loads was computed in the first step and then brought to the second step,in which the axial compression was *** effects of pressure on the ultimate strength of the stiffener were investigated for representative stiffened panels,and the significance of the stiffener parameters was assessed by using the sensitivity analysis *** a result,the ultimate strength was reduced by approximately 1.5%for the span-over-bay ratio of 3 and by 7%for the span-over-bay ratio of 6.