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Lecture: Station Keeping Simulation and Experiment for Floating Type Structure in the Arctic Ocean

For the exploration and production of oil and gas in the Arctic Ocean, the additional load caused by ice should be considered in designing structures. Full scale experiment can give us best result in terms of accuracy, but it is not easy to conduct the test due to cost and time restrictions. In particular, it is almost impossible to meet various forms and characteristics of ice load within a limited time in a real environment.

Model test and simulation can be alternatives to this, but uncertainty in ice load still makes these test difficult. To tackle these problems, a project to design the shape of a floating production platform, where its position is maintained by DP assisted Mooring System, has recently been started in Korea. The aims of the project are as following.

1)    Design and manufacturing DP system for model test in the ice basin
2)    Ice/Wave/Structure and Mooring Interaction Test
3)    Development of Ice Load Estimation Method
4)    Development of Assessment Method for Station Keeping

With the developed modules, station keeping performances of model test and simulation will be analyzed and compared for the designed hull form.

Dr. Jaeyong Lee received Bachelor of Science degree in mechanical engineering from Pusan National University in 2000, and M.S. and Ph.D. degrees in mechanical engineering from Texas A&M University in 2002, and 2007, respectively.

After completing degree courses, he had worked at Samsung Heavy Industries for 5 years as a senior research engineer. In 2012, he began to work at Dong-eui university, and now working as an associate professor at the Department of Naval Architecture and Ocean Engineering.

His research interests include the development of a position control system for offshore floating structures and formation control algorithms for unmanned surface vehicles.  He is currently working on projects involving the development of a simulation framework for station keeping of offshore floating structures in the Arctic Ocean, and the development of a collision avoidance system for the top side equipment on drilling vessels.

Lecture 14 November 2018