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Localization of Submarine Propeller
The Engine &
Machinery
Division has
undertaken inhouse
development
of a submarine
propeller to
be installed on
the first KSS-II
submarine under
construction at
HHI.
The division
will apply its
independently
developed furan
sand propeller
casting. In addition,
manganesecopper
alloy will be used to reduce
propeller noise and vibration.
Notably, application of computer
simulation based “foundry defect
prediction technique,” which utilizes
digital recorder to measure the
process of molten metal cooling and
to calculate the amount of contraction
during solidification, is expected
to contribute to the production of
higher quality submarine propellers.
Meanwhile, several prototypes of
the submarine propeller have been
produced, and the final product is
expected to be unveiled by the end
of October this year.
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Vibration Prediction System
The Engine & Machinery Division
and Hyundai Maritime Research
Institute (HMRI) co-developed a comprehensive
vibration prediction system
for the division’s medium-speed diesel
engines, including its in-house HiMSEN
engines.
The system uses computers with
advanced analysis technologies to analyze
and predict engine vibration in the
early design stage. Furthermore, it conducts
various tests and measurements
to increase the accuracy of the analysis
and reliability of the prediction.
Since the properties of vibration can
be identified through detailed finite element
method analysis and preventive
steps can be taken to vibration-proof
the engine, the system can provide technical
support for sale, design, production,
test-run and after-service of all
HiMSEN engines.
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