Noise control in the Marine Industry is becoming increasingly important for boat manufacturers and end users. Besides the increasing environmental and noise at work legislation, quiet ships lead to improved crew morale, lower long term hearing loss, improved crew performance and reduced crew fatigue. Owners, naval architects and builders are ever more interested in noise and vibrations since onboard comfort became a performance parameter.

Ventac develops optimal noise control solutions based on comprehensive Acoustic and Vibration research in vessels. Each solution is developed and selected for a specific analyzed noise source or noise transmission path.

Ventac have remained consistent in providing high quality products and services with comprehensive technical support.  Common solutions include: acoustical insulation, damping, floating floors, HVAC linings, enclosures and silencers.

Airborne Noise (radiated)

From the definition, airborne noise is transmitted through air and essentially involves the compartments where the noise source is located. This phenomenon typically occurs in the lower decks, where machinery is concentrated and it may be restricted by sealing the noise source so as to hamper airborne transmission (for example, by enclosing machinery in acoustic insulated cabinets).

Click below to see some product and solutions examples.

Structure Borne Noise

Structure borne noise is more pervasive for it propagates to adjacent compartments through the hull structure. Of course, the farther from the source, the minor the structure borne noise. transmitted, but the more rigid the structural element, the better its noise transmission. Typical structural paths are, engine mounting, exhaust pipe mounting, drive-shaft/propeller mounting.

Solutions for structure borne noise in vessels :  

• Tuned vibration isolators 

• Floating floor systems 

• Local damping   - Spray on 

•                            - Tile material AC-damp    
  

Typical solutions for the Marine Industry

lombardini ...

engine box ...

enclosure w...

engine-box

boat-engine...