Classification Principles for Very Large Floating Structures

Chun Wee Ng

DNV GL, 16 Science Park Drive, Singapore 118227
Email address: chun.wee.ng@dnvgl.com

Rongrong Jiang

DNV GL, 16 Science Park Drive, Singapore 118227
Email address: rongrong.jiang@dnvgl.com

Abstract – Very Large Floating Structures (VLFS) had been widely used in the offshore oil & gas industry for the past decades as a versatile platform for the exploration, exploitation and processing of seabed mineral resources. The classification principles of ships had been successfully applied to these Mobile Offshore Units (MOUs) by providing assurance that a set of requirements laid down in the classification rules are met during its design and construction and maintained during its operational phase with the aim to ensure that the required safety standards are met. Recently, the concept of VLFS is promulgated in other industries like power generation, residential, agriculture, etc. As an example on how classification principles can be applied to VLFS in new industries, the DNV GL’s new rules on offshore fish farming units and installations (DNVGL-RU-OU-0503) is being applied to an offshore fish farm. This paper will look at how application of classification rules can help in the design of VLFS to help it rapidly gain recognition from the authorities in terms of achieving an adequate level of safety and quality.

Keywords – Classification, Very Large Floating Structures (VLFS), Offshore fish farm.

Chun Wee is a Senior Engineer at DNV GL Approval Centre Singapore with speciality in marine, process and safety systems onboard ships and offshore rigs. He was involved as the Project Manager for class approval of several complex and harsh environment mobile offshore units like drilling jack-up, floatel, FPSO undertaken in Singapore shipyards in the recent years and sees the benefits of implementing the class concept for VLFS.
Chun Wee obtained his BEng in Marine Engineering from Newcastle University and thereafter MSc in Maritime Studies and Offshore Technology from NTU and NUS respectively. He is also a UK Chartered Engineer and an active member of Institute of Marine Science and Technology (IMarEST).