Aquadrive Limits Engine Vibration

MarineLink.com
Tuesday, October 29, 2013

When members of the Northport Yacht Club on Long Island recently took delivery of two new launches, they had substantial performance expectations. Soon the captains and some passengers sensed something was not right.

At certain engine RPMs, excessive vibration overwhelmed the vessel occupants. When the engine operated at between 1,600-2,100 RPM, the propeller shaft whirled, whipped and actually created alarming gyrations in the engine. The executive committee of the Northport Yacht Club met to determine a solution. After deliberations, they voted to purchase an Aquadrive anti-vibration system.

The Aquadrive system uses a thrust bearing to stabilize the propeller shaft alignment to a fixed thrust bearing instead of a dancing diesel engine. They constructed a strong and rigid support plate for the thrust bearing. Now that the propeller shaft was shorter, it became stiffer. The thrust bearing would also isolate any shaft and propeller vibration from reaching the engine.

Connecting the propeller shaft and thrust bearing to the engine, the Aquadrive CV axle absorbs the engine and transmission vibration. The CV joints enable the engine to float freely in every direction and even permits severe misalignment.

mackboring.com
 

Maritime Reporter August 2013 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Marine Power

Langh Ship Scrubber Receives Class Approval

Langh Ship received on July 17, 2014 final class approval from Germanischer Lloyd for its exhaust gas cleaning system on m/s Laura, a 1996-built a 6,500 DWT general

Korea Shipbuilder Wins US$400-M Greek Order

Daewoo Shipbuilding & Marine Engineering Co., South Korea’s second-largest shipbuilder, says it has signed a contract to build 4 tankships for Maran Tankers Management,

Rolls Royce Marine Awarded LCS Engine Repair Contract

U.S. Department of Defense informs that Rolls Royce Marine North America, Walpole, Massachusetts, is being awarded a US$9,000,000 firm-fixed-price repair order

News

Fraser Yachts' 5th Sale in 10 days

Fraser Yachts announced this morning its fifth yacht sale in just ten days. Whilst the summer period is traditionally a quieter time for yacht sales 2014 seems

Fortis Earns $47 mi in the 2Q 2014

Fortis Inc. achieved second quarter net earnings attributable to common equity shareholders of $47 million, or $0.22 per common share, compared to $54 million, or $0.

VT Halter to Build Bouchard ATB Tugs

VT Halter Marine, Inc., a subsidiary of Vision Technologies Systems, Inc. (VT Systems), today announced new contracts to build two 130-foot Articulated Tug Barge

Yachts

Fraser Yachts' 5th Sale in 10 days

Fraser Yachts announced this morning its fifth yacht sale in just ten days. Whilst the summer period is traditionally a quieter time for yacht sales 2014 seems

Regulations Threaten Superyacht Innovation

To increase innovation within the superyacht industry, designers need to work with flag states, classification societies and naval architects to ensure regulations are workable, as said by experts.

Homecoming Scotland 2014 Fireball Championships

Lerwick Harbour is ready for an exciting week of sailing with the 2014 Fireball European Championships taking place at the port next week. As a warm-up to the main event,

 
 
Maritime Careers / Shipboard Positions Maritime Security Navigation Pod Propulsion Port Authority Salvage Ship Repair Ship Simulators Shipbuilding / Vessel Construction Sonar
rss | archive | history | articles | privacy | terms and conditions | 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: 0.0921 sec (11 req/sec)