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자동차운반선(PCTC)의 구조안정성 평가 1 : 횡강도 해석
최종일(Choi Jong-il),김창욱(Kim Chang-wook),연규진(Yeon Kyu-jin),최양호(Choi Yang-ho),한준영(Han Jun-young) 대한조선학회 2011 대한조선학회 학술대회자료집 Vol.2011 No.6
The Pure Car and Truck Carrier(PCTC) is a ship for transportation of high roof type or heavy vehicles such as recreation vehicles, trucks, trailer, buses and buldozers. The loading and unloading of cargo units is carried out by Roll-on/Roll-off through the stern ramp(or side ramp). Liftable car decks are arranged between some deck levels for the purpose of flexible loading of different height of vehicles on or below the deck. Because of the reason of loading the various kind of vehicles, PCTC has become more popular than the PCC in recent years. PCTC has the structural features of the sufficient longitudinal strength and insufficient transverse racking strength due to limited number of transverse bulkhead. Following analyses have been performed in this study to confirm the structural adequacy of main structural members for 6,500 Unit Roll-On Roll-Off Car Carrier. · transverse strength analysis based on standard rule loading · entire ship structural analysis based on dynamic load analysis · spectral fatigue analysis In this first paper, the results of transverse strength analysis is reported. In the second paper, the results of entire ship structural analysis and spectral fatigue analysis will be reported.
자동차운반선(PCTC)의 구조안정성 평가 2 : SPECTRAL FATIGUE ANALYSIS
최양호(Choi Yang-ho),김창욱(Kim Chang-wook),연규진(Yeon Kyu-jin),김준규(Kim Joon-gyu),최종일(Choi Jong-il),한준영(Han Jun-young) 대한조선학회 2011 대한조선학회 학술대회자료집 Vol.2011 No.11
The Pure Car and Truck Carrier(PCTC) is a ship for transportation of high roof type or heavy vehicles such as recreation vehicles, trucks, trailer, buses and buldozers. The loading and unloading of cargo units is carried out by Roll-on/Roll-off through the stern ramp(or side ramp). Liftable car decks are arranged between some deck levels for the purpose of flexible loading of different height of vehicles on or below the deck. Because of the reason of loading the various kind of vehicles, PCTC has become more popular than the PCC in recent years. PCTC has the structural features of the sufficient longitudinal strength and insufficient transverse racking strength due to limited number of transverse bulkhead. Following analyses have been performed in this study to confirm the structural adequacy of main structural members for 6,500 Unit Roll-On Roll-Off Car Carrier. · transverse strength analysis based on standard rule loading · entire ship structural analysis based on dynamic load analysis · spectral fatigue analysis In this second paper, the results of spectral fatigue analysis is reported.
신현경(Hyun-Kyoung Shin),손호철(Ho-Cheol Son),권명준(Myung-Joon Kwon),송재영(Jae-Young Song),김종현(Jong-Hyun Kim),이정렬(Jeong-Ryul Lee),강호승(Ho-Seung Kang),연규진(Kyu-Jin Yeon) 한국해양공학회 1998 韓國海洋工學會誌 Vol.12 No.3
CAD/CAM program developers have made substantial progress in enabling engineers to design, analyze, visualize, and simulate the performance of structures and systems. Many researchers, however, agree that there is still a way to go before the existing commercial computer software can be used in ship structural analysis to their full potential as solvers which can identify opportunities to reduce man-hours and cut costs. CAD systems used for these works in ship yards are general-purposed and not custom-tailored for ship structures, which force end-users to do tiresome and routine works. The new preprocessor "MeshGen" announced in this study can load several ship types and user-friendly generate their FE meshes employing the object-oriented approach based on the parametric and top-down design. Also "MeshGen" reduces dramatically the time required to prepare CAD models under window-based environments on desktop personal computers and makes it much easier and faster for end-users to change topology and material properties.