School of Engineering


Noise tolerant design, vibration monitoring and control

While on board comfort for workers is a vital competitive factor for operational efficacy and safety in drilling operation, the concept of crew habitability in relation to drilling vessels has assumed far greater importance in recent years. This reflects tougher regulatory criteria, and a greater appreciation of the fatigue-inducing effect and long-term health issues associated with protracted exposure to high levels of noise and vibration. Hence, shipbuilders are looking to limit noise and vibration on ship as much as possible. This is particularly important on accommodation quarters on the drilling platform. Ideally, potential problems should be identified at the earliest stages of drilling platform design and building, as well as in the initial stages of parts design and manufacture.

However, it is a challenge to predict using today’s acoustics computer modelling software to model the engine room and the scattering due to surface roughness and diffraction. A new practical and theoretical program for accurate narrow-band width prediction of the noise and vibration control is therefore required.