Comfort Class Levels:
Pending on the Classification, Comfort Class Levels are published however do they reflect reality?
In most cases they can be improved for your Yacht (see our services DESIGN STAGE ).
Finite Element Analysis (F.E.A) should be carried out prior to the building stage. Silent Line is offering this service and GUARANTEES low vibration levels in accordance or even lower than comfort class 1.
By means of F.E.A models we analyze the natural frequencies and mode shapes of the most important elements of the ship structure such as:
- Hull plating above the propulsion propellers
- Foundations of main and secondary rotating machinery
- Deck structures
These studies are extremely important in order to avoid resonance and or annoying vibration levels. In case we foresee a problem, we modify the structure and run the model(s) again to be sure that the problem is solved before we start the actual construction of your Yacht.
As part of the active noise and vibration studies we make sure that excitation forces emitted by main and secondary machinery (including propulsion propellers) is as low as possible.
Elastic mounting systems:
6 or 12 Degrees of Freedom calculations are part of the Silent Line vibration studies in order to make sure that maximum reduction of excitation forces (vibration | structure- borne noise) are achieved.
Sylomer is the most well-known product used for floating floor systems on board luxury Yachts. The correct type of this elastomer is pending on the excitation frequencies of the main sound sources as well as the dimensions of the floor grid work.
Silent Line is using in-house computer software in order to calculate the natural frequencies of various floating floors throughout each Yacht and designs the optimum floating floor concept along with cabin surroundings (box-in-box construction).