Significance Statement
The Korean government in view of supporting offshore plant equipment enterprises and its problem, founded a government-contributed research institute called The Korean Research Institute of Ships and Ocean Engineering (KRISO). Before the creation of this institute, the problem facing the offshore plant equipment are low number of professional labor, lack of research and development tools to carryout desired design. The introduction of simulation based design has been found to be of help in solving offshore plant equipment problems.
Research team from Korea Research Institute of Ships & Ocean Engineering & Hanyang University took a step further in solving temporal inefficiencies that occur during re-designing and re-modeling of equipment after the verification of the design weakness. The work published in journal, Ocean Engineering uses a newly developed simulation based design called feedback loop design FLD, which first corrects the weakness found in this design before entering verification process.
Remote component environment RCE software framework was used, due to it JAVA source and not a commercial software framework. It is a multi-disciplinary simulation used for optimizing design algorithm and verification of the feedback loop design. In order to verify feedback loop design, DAFUL and ANSYS (analysis system) were used.
The feedback loop design algorithm hits double targets which is a complex problem for the dynamic simulation based optimization design and mechanical design. The feedback loop design was also used to design a safe lifting riser and moon pool structure in extremely dynamic condition such as current, wave, vortex induced vibration and loads by heavy weight.
When considering the effect of wave and current, the authors applied RAO (Response Amplitude Operator) of mining vessel to control the real sea environmental effect and the issue of resonance was also avoided using feedback loop design.
According to Jaewon et al. (2016), for a design to be acceptable for the optimization of design, it must have a circular process such as designing modification and design verification. This are the properties of the feedback loop design which has been realized and verified to be effective in supporting offshore plant equipment.
The method applied by Jaewon et al. (2016), gives a safe design properties which reduces time spent on preparatory design test. It is also of greater importance when compared to the previous simulation based design.
Journal Reference
Jaewon Oh1,2, Cheonhong Min1, Sugil Cho1, Daesung Bae2, Hyungwoo Kim1 . Concept of an Advance Simulation-Based Design for Engineering Support of Offshore Plant Equipment Industries and its Realization Method. Ocean Engineering, Volume 121, 2016, Pages 369–381.
[expand title=”Show Affiliations”]- Technology Center for Offshore Plant Industries, Korea Research Institute of Ships & Ocean Engineering (KRISO), Daejeon 34103, Korea
- Department of Mechanical Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Korea [/expand]
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