4. Study on the Risk-Based Methodology for Ship Structural Design
4. Study on the Risk-Based Methodology for Ship Structural Design
4. Study on the Risk-Based Methodology for Ship Structural Design
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3. Case <str<strong>on</strong>g>Study</str<strong>on</strong>g>• Step 3-2. <strong>Design</strong> Variables (1/3)‣ Stochastic modeling of <strong>the</strong> design variables<strong>Design</strong>VariablesUnitDistributi<strong>on</strong>TypeDistributi<strong>on</strong>ParametersReference LMTN/mm 2 Lognormal Mean=348/ CoV=0.06 MSC 81/INF.6P WK-Stat kN/m 2 C<strong>on</strong>stant150.829 <strong>for</strong> full loading69.884 <strong>for</strong> normal ballastIACS CSR-Oil TankerP WK-Dyn kN/m 2 Weibull Refer to <strong>the</strong> next slide DLA (Direct Load Analysis)M WK-Stat kN-m Normal Mean=1,950,228/ CoV=0.2857MSC 81/INF.6 (70% of permissiblemoment c<strong>on</strong>sidered <strong>for</strong> <strong>the</strong> example)M WK-Dyn kN-m Weibull Refer to <strong>the</strong> next slide DLA (Direct Load Analysis)s, l mm, n Normal Mean=830, <str<strong>on</strong>g>4.</str<strong>on</strong>g>03/ CoV=0.04 SSS-93f bend - C<strong>on</strong>stant 12 <strong>for</strong> both ends fixed IACS CSR-Oil Tankerz stiff cm 3 Normal Mean=1762.9/ CoV=0.04 SSS-93C Scale - C<strong>on</strong>stant Refer to <strong>the</strong> next slide DLA & IACS UR S11d vert m Normal Mean=8.845/ CoV=0.04 SSS-93I HG-vert m 4 Normal Mean=35<str<strong>on</strong>g>4.</str<strong>on</strong>g>492/ CoV=0.04 SSS-93The 6 th ASEF- 20 -
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