Thank you so much for RINA provided this great opportunity to
connect professionals in the industry and share everyone thought and update
news. And I also would like to say thank you so much for BMT Defense Services who sponsor me to
attend this conference. I am highly appreciated this opportunity.
I am very happy to share the summary of this conference with
you all.
This conference content of six presentations which concludes
recent development in load and fatigue analysis on floating structure.
1. Fatigue Strength Analysis for Detailed FE Models
in Jack-Up Vessels
------ Global Maritime Group, UK/Norway
2. Effect of Internal Fluid Dynamics on Fatigue on FPSO
------ DNV
GL, Norway
3. Wave Spectral Characterization for Fatigue Calculation
------ Fugro
GEOS Ltd, UK
4. Extreme Wave Loads on Semi-Sub Platform Columns
------ MARINTEK, Norway
------ Statoil ASA, Norway
5. Novel Mooring Design Options for High Intensity Typhoon
Conditions
------ University of Exeter, UK
------ South China Sea Intitute of Oceanology
(SCSIO), China
------ National Ocean Technology Centre (NOTC),
China
6. From tanker to FPSO: A structural analysis challenge
------- International Contract Engineering (ICE), Romania
For more information and paper requests, you can contact
RINA by email publications@rina.org.uk.
Here is the summary on what I had learn from this
conference:
Classification society:
For offshore vessel design are lack of validation but would
it be a possibility to compare with bulk carrier/ oil tanker while doing
analysis? Because Bulk carrier and oil tanker are present for a history, many
data available.
SESAM:
SESAM can model internal fluid. How to do is… Model as rigid
body but input a restoring matrix. They are behave like an external fluid as
well. In SESAM, sloshing can be capture but linearly.
Usually internal dynamics motion is much smaller than the
external dynamics motion, therefore not the primary problem. And you want the solution
as fast as possible.
MARINTEK:
I highly recommend this paper for people who are interested
in extreme wave loads analysis. This paper pointed out that numerical model are
always underestimated the loads in extreme condition and therefore led to
mooring failure. This paper also suggested a method to improve numerical model
by using SIMO and RIFLEX.
The reason of underestimated the loads was determined as not
taking account of viscous effect. By using an extra slender element in SIMO,
the prediction in surge motion had improved but not in the heave and pitch
motion.
Further investigations are required since the problem is
complicated and involves many different hydrodynamics phenomenon which is also nonlinear
relationship.
In my option, this is a very interesting subject in our
industry!
University of Exeter:
They also have a very interesting research going on specifically
in novel mooring design, e.g. synthetic line which included study in material
property and its effect on fatigue load. They also have very good testing facility
which impress me. A YouTube video is available:
More information can be find in University of Exeter website.
This is the summary I did for the conferences. Thank you
again for the people who supporting me to this conference. I enjoyed so much.
=)
I apologize if any information is wrong. Please contact me
if that is the case and I will do edition for that.
Thank you very much for reading. Feel free to comment, your
opinion is highly appreciated.
Have a nice day! =)
This is the picture taken on that day.
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