Specialist Modelling Areas 

Finite Element Analysis (FEA)
Acoustic Mapping
Predictive & Simulated Noise
Computational Fluid Dynamics (CFD)
Underwater Acoustic Modelling & Mapping
Operational Deflection Shape (ODS) Analysis
Computer Aided Engineering (CAE)

Xi’s modelling work has seen us lead the way in what is possible to achieve through modelling and Computer Aided Engineering. We use our range of computer packages and significant computing power to resolve our clients' needs.  Design, verification, or solution, our mutliphysis capabilities allow us to assess a broad range of problems.  Whether it be Finite Element Analysis, acoustic propagation modelling, or otherwise, we have the tools for the job.

Our modelling capabilities allow complex mechanical and structural interactions to be represented and investigated.  This allows us to quickly establish the nature and dynamics of a problem allowing solutions to be derived and simulated virtually.  In turn this reduces the traditional time consuming techniques of trialling a variety of solutions by allowing us to efficiently establish the most effective design solutions in a virtual test bed .

Xi use various modelling systems for our clients including:

  • Solidworks Simulation Premium
  • COMSOL Multiphysics
  • NoiseMap
  • Vibrant Technologies ME'scopesVES

Solidworks LogoCOMSOL logo

NoiseMap LogoMEscopesVES logo




In recognition of the advanced modelling work being undertaken Xi became COMSOL certified consultants in 2012.  COMSOL is a powerful multi-physics modelling system allowing complex interactions between different physics regimes such as structural vibration interaction with airborne acoustics.

Xi will typically calibrate models with real world measurements, providing models with real world accuracy, and our clients with exceptionally powerful tools for understanding, developing and marketing their products and developments.

Pushing Boundaries

Xi’s modelling work has seen us leading the way in what is possible to achieve through modelling. Xi have published and presented papers on our models showing the acoustic airborne noise propagation from wind turbines which allows our clients to find ways to minimise their tower's acoustic output. In the marine energy sector Xi have developed techniques to provide 3D submarine acoustic maps showing the effects individual and array’s of devices interact with the local bathymetry which can be overlaid with the hearing spectrum of marine life providing valuable insight for Environmental Impact Assessments (EIAs).

Super Computing

For computationally complex models or models with very large domains, Xi Engineering work with the EPCC  at The University of Edinburgh with access to ARCHER.  ARCHER (Advanced Research Computing High End Resource) a Cray XC30 supercomputer, superceded HECToR the previous super computing resource at Edinburgh University, on the 25 March 2014.

ARCHER is the largest, fastest, and most powerful supercomputer in the United Kingdom.   This resource allows Xi Engineering to tackle problems that would typically be considered outwith  the realms of typical computer simulation, providing incredible detail and scale to models where required, including:

  • Extensive time dependent problems such as wind or water wake effects.
  • Large domains
  • Complex geometries
  • Multifaceted physical interactions such as structural to airborne noise systems

Call our Engineering Team

Our engineers love to talk about modelling noise, vibration and dynamics.  If you think we can help call us on 0131 290 2250.  Or follow the links at the top of the page for more details on specific modelling topics.