Hydrodynamic modelling and simulations for diamond cutting strings
The diamond cutting string is a component in the Sub-Bottom Cutter (SBC), and as such required finite coding elements to vigorously test its high stress and excessive elastic properties. These elements facilitated the execution of the structural components including the machine frame and twin pipe assembly's in the worst-case scenarios. Further, multi-body analysis tools have been developed to create the simulated marine environment that the tools will operate in, which in turn enables cutting machine designers to observe static and dynamic behavioural patterns. These simulations primarily focused on the standing and positioning operating modes, thus introducing suitable working hypotheses that focus on the most significant forces of the SBC. The simulations are easy to handle and require very little time to generate the results, but because of the numerous components within SBCs, the results produced are rather complex. When compared to experimental assessments conducted on a test bench facility, the results demonstrated that the simulation models can accurately predict the surface force intensification at the point of impact. With the technological foresight now in place, designers will now be able to create innovative diamond cutting string configurations for specific cutting machine types. The Italian research team behind this hydrodynamic modelling and simulation design tool are currently interested in collaborating with SMEs who are experts in their own fields. Particular interest is with experts within multi-body analysis and complex machine simulations, 3D parametric modelling, kinematic mechanisms and robot design. Image shows 3D models of the diamond wire main components.
