Numerical design analysis
Purpose
To provide design solutions and through understand the physics in components and systems by state-of-the-art numerical analysis techniques. This helps designers and users of rotating machinery to understand and evaluate system functionality and fitness for purpose.
Benefits
Numerical design analyses provide valuable insight into complex system behaviour and component interactions. This is important for component selection and design optimisation, in particular to avoid normally good components constituting a poor system.
DNV's expertise and state-of-the-art technology provide a documented, safe and reliable design as well as valuable understanding of the components’ and systems’ operational limitations and capacities.
Features
The service is available to the maritime, offshore oil & gas and land-based industries. The following technologies are available for numerical analyses:
Finite Element Analysis (FEA); prediction of static and dynamic responses, such as stresses, strains and displacements, in complex structures.
Shaft Alignment; calculation of shaft alignment to ensure optimised bearing conditions in the main engines, shaft support and stearn tube bearings and establish alignment procedures.
Vibrations in shafting system; calculation of natural frequencies and steady-state forced vibrations, such as axial vibrations, lateral/whirling vibrations and torsional vibrations.
Numerical simulations; simulation of transient dynamic responses, such as torque and stress loads, speed variations and stability, thermal loads, electric power and current, from interactions between the different components in a power system.
Scantlings and design verification; component calculations for verification and to ensur conformity with DNV Rules and other recognised standards. This includes: shaft fatigue, gear transmission strength- and propeller blade/hub strength analysis.