Marine Energy

The opportunity afforded by marine energy will go a long way to help the UK and the rest of the world achieve ambitious carbon reduction targets. If marine equipment is to harness and also survive the enormous power of the ocean it is vital that a design is mechanically robust and reliable. Knowledge and experience in dynamics and vibration are therefore essential for risk mitigation and minimising operational and maintenance costs. 

Working closely with project partners Xi provide a comprehensive view of the overall power generating structure and the interactions between each of its components. This in turn allows us to address potential fatigue concerns and advise upon design modifications at the earliest stage. This delivers the most valuable engineering output with minimal design costs.  Marine vibration solutions require not just a depth of specialist knowledge, but also the ability to provide dynamic analysis and modelling.  This allows pre-emptive solutions for vibration issues to be designed before they become vibration problems.

Xi's capabilities and services -

  • Vibration analysis due to excitation of the nacelle and substructure of the turbine wake effects during blade pass
  • Frequency-matching analysis between rotational machinery with all major structural elements and components in the nacelle
  • Bespoke design and interpretation of condition monitoring system and recorded data analysis of excitation by waves, cross currents and marine turbulence
  • Simulation and analysis of the interplay between structural resonance of the drive train and vibrations in torque due to grid fluctuations that may affect major components
  • Run up, operational and over - speed component analysis
  • Advice and sourcing of isolation for key device components

In addition we liaise with strategic partners in the following areas -

  • Environmental Impact Assessment (EIA)
  • 3D acoustical maps of device noise output taking into account device and the sea floor bathymetry interactions
  • Prediction of acoustic signatures of marine renewable devices
  • Integration modelling of the device with localised topography
  • Individual and array analysis of resultant noise impact with comparison to background data
  • Interpretation of predictions with regard to local marine life populations and environmental impact
  • Advice and design contribution to pre and post-installation monitoring and mitigation strategies