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HHI - Hyundai Heavy Industries

Uses Nauticus Machinery software for shaft alignment

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HHI chose Nauticus Machinery

Hyundai Heavy Industries is the world's largest shipbuilder, and recently passed the 100 million tonnage mark in ships. Since 2001, HHI has used Nauticus Machinery for shaft alignment calculation.

“Nauticus Machinery is a very easy and convenient tool,” says Senior Engineer K.M. Hwang at Hyundai Heavy Industries, who has been using the tool for shaft alignment for ships built at HHI since 2001.

Mr Hwang has been with HHI for 12 years, and is responsible at the ship outfitting design department for the shafting, rudder and steering gear systems. His team of 16 engineers are using Nauticus Machinery hands-on.

He points out that HHI has compared Nauticus Machinery (marine propulsion system) with other software, and landed with the DNV GL products due to several factors, including clear output, the ability to calculate several conditions at the same time, modelling by the drag and drop method, flexible combination of graphs, diagrams and drawings, and the helpful and timely support from the DNV GL team.

Easy calculation of operating conditions

“The reports are easy and clean, and the results are reliable,” he says. “These characteristics help us calculate many operating conditions very easily. And when we consider many operating conditions, we can prevent the future damage of the stern tube bearing.

Even though other tools can calculate the shaft alignment, they are more difficult to use than Nauticus Machinery.

“We can consider many conditions including multi-supported bearing and bearing stiffness,” says Mr Hwang. “It is very easy to correct the model, including the diameter, length and external load. We can also insert the graph of the shaft line and bending moment diagram right on the drawing.” “I’m satisfied with the DNV GL's software customer support, which offers quick responses to solve any problems. It is very helpful and convenient to report to the DNV GL Korea staff immediately by e-mail or by phone call,” he says.

The HHI Shipbuilding group is the world’s largest shipbuilder, with a 15 per cent share of the market. The Hyundai shipyard stretches across four kilometers along the coast of Mipo Bay in Ulsan, Korea. It has ten large-scale dry docks with nine ‘Goliath cranes’. HHI has delivered more than 1740 ships to 272 shipowners in 48 countries since 1972.

Tonnage includes LNG and LPG carriers, VLCCs, tankers, containerships, bulk car-riers, ro-ro and ro-pax ships, drill ships, submarines, destroyers and frigates.

Why we chose DNV GL:

  • Preferred software over other solutions
  • Working relations with DNV GL are simple, easy and reliable
  • DNV GL customer support offers quick responses to solve any proplems

This is what we gained:

  • Modelling by drag and drop
  • Clear output
  • Easy to correct the model
  • Considers many conditions including multi-supported bearing and bearing stiffness