Noise, Shock and Vibration Control
| GERB Vibration Control Systems | ||
Double-elastic spring mount with viscous damping. |
Double-elastic spring element for the support of a submarine platform. |
Vibration levels with and without isolation system. |
Ship engine on double-elastic spring elements with integrated Viscodamper®. |
Diesel generator on frame and spring damper elements. |
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| Hasse & Wrede | ||
Hasse & Wrede supply a full range of torsional vibration dampers for application in all kinds of ships. |
The visco-damper provides the necessary torsional vibration damping effect by resilient, damped coupling of the secondary mass (inertia ring) to primary mass (housing). |
Hasse & Wrede's visco-dampers operate at a higher temperature than other damper systems due to temperature stabilized silicone oil. |
A damper that is in poor condition will increase the torsional vibrations of the engine, resulting in an increase in material stresses of the crankshaft and eventually in a crankshaft failure. |
Our internationally acknowledged laboratory can carry out an inexpensive and fast silicone oil analysis. |
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| Noise Control Engineering | ||
NCE specialises in the analysis and reduction of underwater noise, implementing controls such as this two-stage isolation system for centerline gensets. |
NCE implements innovative methods to optimise the effectiveness of the treatment whilst keeping the adverse impact on space, weight and cost to a minimum. |
NCE conducts underwater radiated noise trials, such as the one shown for the NOAA fisheries research vessel. |
NCE has measured source noise and vibration levels for all types of marine equipment, such as diesels, gas turbines, compressors and pumps. |
NCE has developed the special software, Designer Noise, to accurately predict shipyard noise and allow the optimal implementation of treatments. |
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| Trelleborg | ||
Trelleborg Industrial AVS supplies anti-vibration mountings and suspension systems for passenger vessels, naval vessels and leisure boats. |
The RRS Ernest Shackleton research vessel, pictured, used Metalastik® mounting brackets to effectively reduce vibrations. |
Patrol boats, with twin MTU 16V2000 engines, built by Austal Shipyard. These engines are installed on Cushyfloat™ anti-vibration mountings to reduce rebound stiffness. |
| Vibrostop | ||
Among our marine products is the company's flagship product - Vibrostop MM stainless steel mounts - homologated by the Italian Navy. |
Intended for less extreme applications the Vibrostop AA with an aluminium case shares the same MM concept and features replaceable elastic bodies and a great ability to withstand overloads and operate safely. |
Vibrostop Mopla spring mounts allow greater deflection, thus in on-shore applications they provide better isolation in any environment and at any temperature. |
Vibrostop Moflex is the solution for reducing the turbulence generated by pumps that propagates noise and vibration along pipe ducts. |
Vibrostop Cavoflex cable mounts allow the safe fitting of machinery where shock and vibration isolation is required. |
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