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Whalley R.H.,HMRI
IET Seminar Digest | Year: 2010

The paper outlines the development and requirements of relevant legislation. It shows how the systems to meet the requirements have developed and how they are met with current technology. It explores different braking systems and the interfaces between braking and traction control systems. Finally it looks at the implications of such control systems on track capacity and the slippery topic of adhesion in the evolving world of ERTMS. Source

Shon Y.E.,HMRI | Chang B.J.,HMRI | You J.M.,HMRI | Han B.W.,HMRI
Naval Architect | Year: 2016

CFD analysis was used to study the hydrodynamic characteristics of the twin skeg type LNG carrier, and to design the new twisted rudder. To validate the computational method used, the CFD results of the original wake field analysis were compared with the experimental results of the same subject vessel via the use of stereoscopic particle image velocimetry system during model testing at HMRI's towing tank. The axial velocity of the left side (inboard) was faster than the right side (outboard). Armed with a better understanding of the propeller wake field flow, it was possible to design a twisted rudder using the CFD results. This design was compared with a symmetrical rudder during a model test using a three-dimensional method of interpretation in consideration of the form factor, which established the clear benefit of the twisted design. Source

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