NoiseControl in Ships and Offshore Plattforms by Damping Techniques
Because the steel and aluminium constructions used for ships and plattforms are stiff and therefore highly resonant, no exceptional forces are required to excite the structure and give rise to noise, which is then transmitted efficiently. Viscoelastic damping materials, used in properly designed treatments, can be used to control that noise transmission, by damping the structure and removing energy from the resonant vibration.
| Area of noise control | Product | Performance |
|---|---|---|
| Interior steel deck, general | System U1 System V2 System U10 |
Damping of structure borne and impact sound. Levelling of deck. |
| Interior steel deck, general, A-60 class decks | Floating floor PVP-2, 0/3, 0-50 steel or aluminium. | Damping of structure borne, air borne and impact sound. |
| Interior deck with very high demand for noise control | Combined system V2, U10 and PVP-2,0/3,0-50 | Excellent damping of structure borne-, impact-, and air borne sound. |
| Interior steek deck, wet areas | System U1 System U10 |
Damping of structure borne and impact sound. Levelling of deck. |
| Interior deck, aliminium hulled speed vessels | System U1 System U10 |
Damping of structure borne and impact sound. Levelling of deck. |
| Interior deck, aliminium hulled high speed vessels | System, U1 | Damping of structure borne sound. Low weight. |
| Bulkheads and hullsides | Damping cassettes Damping layer VS-10 Damping layer DG-U6 |
Damping of structure borne sound transmission. |
| Improved transmission loss | PVP Sandwich | Improves transmission loss between cabins at a minimum added thickness. |
| Levelling of interior deck | SBR latex conrete | Constraining layer and leveling compound. |
Test and certificates
certificate
Primary Deck Covering Certificate and A-60 certificate.
Approved according to EU Commission Marine Equipment (MED) 96/98 EC. DNV 0572:
System U1 Swedac DG-U1 + Steel Primary Deck Covering
System U10 Swedac DG-U1 + Weber 4660 Primary Deck Covering
System V2 Swedac ACM + Weber 4660 Primary Deck Covering
Swedac PVP minimum 2.0 / 2.0 steel onto 50mm mineral wool Primary Deck Covering
Swedac PVP minimum 2.0 / 3.0 steel onto 50mm mineral wool A-60 Class Deck
A-60 Combi A combined system with many possibilities A-60 Class Deck
Powerflex Facing and additional insulation for shots with B Surface materials
Acoustic tests
Viscoelastic Deck treatment and Floating floors:
Ödegaard & Danneskiold-Samsöe A/S report no. Note 99.1109 ØDS Ref. 99.4268
Damping cassettes:
Ödegaard & Danneskiold-Samsöe A/S report no. Note 01.1048 ØDS Ref. 01.4271