MTU Works to Quiet Engine Noise

Wednesday, March 19, 2008
The active mountings are based on the noise-cancellation principle: they create sound waves with the same amplitude and the opposite polarity to the original structure-borne waves of the engine. In this way, noise and anti-noise cancel each other out to a large extent.

The Tognum subsidiary MTU Friedrichshafen signed a contract on the exclusive distribution of active engine mountings with the companies Paulstra and Stop-Choc. The jointly developed system, which MTU has trialed on test benches and in ships, reduces the structure-borne noise emitted by diesel engines. This innovative concept of active mountings has been developed through to product maturity for yachts and naval ships. With this cooperation, MTU Friedrichshafen is expanding its core competencies in the system business. MTU engines are installed on special rubber mountings as standard equipment to reduce the transmission of structure-borne noise to the ship’s hull. The new active mountings support the passive rubber mountings and make their noise reduction far more effective. The active mountings are based on the noise-cancellation principle: they create sound waves with the same amplitude and the opposite polarity to the original structure-borne waves of the engine. In this way, noise and anti-noise cancel each other out to a large extent. With this technology, which is being applied to marine diesel engines for the first time, MTU can offer its customers tailored system solutions for noise reduction on the basis of passive and active systems.

Maritime Reporter March 2014 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Technology

Russian Navy Take Over Crimea Combat Dolphins

The combat dolphin program in the Crimean city of Sevastopol will be preserved and redirected towards the interests of the Russian Navy, according to a report by official news agency RIA Novosti.

Transas to Participate in ETC-2014

Transas will take part in the ETC-2014 – The second International Forum on Seafarers’ Education, Training and Crewing. The Forum which consists of the Conference

World Petroleum Congress to be held in Moscow

Deputy Prime Minister of the Russian Federation, Arkady Dvorkovich, has confirmed that the 21st World Petroleum Congress will be held in Moscow from 15 – 19 June 2014.

Contracts

Japan LNG Imports Hit Record Levels

Japan imported record volumes of liquefied natural gas (LNG) and thermal coal in the fiscal year ended in March, as the country's  shutdowns of nuclear stations

Container Ship Delivers First Boxes to Great Lakes Port

The US Coast Guard say that the 'Fortunagracht', a 450-foot Dutch-flagged container ship, has delivered the first-ever load of containerized cargo to the Great Lakes.

Shipping Turns From Banks to Equity Markets for Cash

Shipping companies are turning to equity markets to fill a growing funding gap, betting that investors hungry for decent returns will provide capital to a sector

Marine Propulsion

RS at SEA JAPAN 2014

Russian Maritime Register of Shipping (RS) was the only Russian company to take part in SEA JAPAN 2014 exhibition and conference – one of the major exhibitions of the maritime industry.

Havyard to Build Hybrid Battery Arctic PSV

Norway's Havyard says it has signed a contract for the construction of a Havyard 833 WE ICE platform supply vessel with Fafnir Offshore HF. The vessel is to be

GE Gas Turbines Power USS America

GE Marine reports that the United States Navy’s future USS America (LHA 6) amphibious assault ship recently completed successful acceptance sea trials powered by two GE LM2500+ marine gas turbines.

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Maritime Standards Offshore Oil Pipelines Port Authority Ship Repair Ship Simulators Shipbuilding / Vessel Construction Sonar
rss | archive | history | articles | privacy | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.2503 sec (4 req/sec)