Millennium's Vibration Problem Not Related To Gas Turbines
A splashing debut with new innovations could best describe the inauguration of Celebrity's Millennium, which occurred in England this past summer.
Ironically, the splashing part of the gas turbine-powered vessel's debut is what is now causing headaches at the Miami, Fla.-based company. It seems that the slapping of the water against the vessel's hull is causing excess vibration. Quick to offer a remedy is Newport News Shipbuilding (NNS), which was award- ed the repair contract from Celebrity in August. The company, which brainstormed with Celebrity's executives on September 8 at Kingsmill's conference facilities in historic Williamsburg, Va., will house Millennium at its largest dry- dock from November 18 — following the vessel's New York City debut — until December 13 when it will steam back to its homeport in Fort Lauderdale, Fla. for its regular fall/winter itinerary of Eastern and Western Caribbean cruises.
MR/EN spoke with Becky Stewart.
NNS' director of ship repair, who provided a full update of the project via telephone from the meeting site.
Contrary to popular belief, the myth surrounding the "Millennium mystery" began shortly after its maiden voyage on July 1. There were scattered reports of excess noise and vibration that was supposedly coming from the vessel's innovative gas turbine engines. Rest assured, this is not the case, according to NNS' Stewart, the vibration is the result of water slapping, or wave action against the bottom of the ship's stern hull. In order to reduce this "slapping" noise, NNS. after talks with Celebrity and engineers from the ship's builder, Chantiers de 1' Atlantique, will install sponsons underneath the ship's hull so that the water flow moves in a different way.
As a sidebar to what was discussed at the meeting other than the task at hand, it was decided between Celebrity and NNS how Chantiers would transfer the electronic engineering data to NNS, so that steel fabrication of the sponsons could begin as soon as possible. Once this was determined, Stewart estimated that the scantlings were scheduled to arrive during the week of September 10, followed by the engineering data from Chantiers by the end of the month.
Due to its expansive on-site capabilities, NNS can immediately begin to acquire and fabricate all steel needed for this job prior to the ship's arrival. "If the steel is readily available, we can have it fabricated in a matter of two weeks," Stewart said.
The yard will also be able to piece together most of the steel, as well as position it on the drydock — all from the benefits of having the electronic data prior to Millennium's arrival on November 18. According to Stewart, this benefit shaves off between two to three weeks time that the ship must remain in drydock — time which is especially precious to the itinerary driven cruise industry.
Currently being constructed at Chantiers is Millennium's sistership.
Infinity, which is scheduled for a January 2001 inauguration. Dependent upon how far along the ship is in its building process, Chantiers engineers will either incorporate this new engineering design into the vessel's superstructure, or install them as additional attachments.
— by Regina P. Ciardiello
Other stories from October 2000 issue
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- Marine Employment Resource Debuts page: 13
- From E-Biz to E-Bust: Is Online Chartering and Sale and Purchase Possible? page: 15
- MaritimeDirect Strengthens Its E-Commerce Team page: 16
- Maritime Records and Contracts: Electronically Signed, Sealed, Delivered and Maintained? page: 17
- Maritime Industry Mourns Congressman Bateman page: 24
- BP Takes Three DH Tankers From NASSCO page: 26
- New Technology on Display at Fish Expo I WorkBoat Atlantic page: 27
- South America Gets "Kit" Traelers page: 27
- SSPC Reaches Half-Century Mark page: 29
- New Hempel Coatings Meets Future Requirements page: 31
- Ohio Innovator page: 34
- Corrosion Control Electronically page: 34
- Improving Fuel Efficiency and Maintenance Time Within The Chevron Fleet page: 36
- Litton Avondale Holds Keel Laying Ceremony page: 37
- The Abandoned Shipwreck Act: Useful Tool for Historic Preservation or Paper Tiger? page: 38
- FGH Receives $52 Million Worth Of Orders page: 42
- A Helping Hand In Stralsund page: 43
- SWM Uses Automation To Speed Workflow page: 44
- ShipRepair & Conversion Is A Maritime Exclusive page: 47
- Cammell Laird, Cascade General Enter Agreement page: 48
- Millennium's Vibration Problem Not Related To Gas Turbines page: 50
- On The Waterfront With NNS' Director Of Ship Repair page: 52
- AMHS Ferry Visits Bellingham Bay Shipyard page: 53
- Toftejorg Features Cleaning Concept For Mud Tanks page: 54
- Fleetguard's Centriguard Reduces Emissions page: 54
- Near Miss Caused By Deficient Air Pipes page: 57
- After 25 Years, Smit International Keeps Evolving page: 58
- Atlantic Marine Keeps Docks Working page: 60
- H&W Gets Its $31M From Global Marine page: 60
- National Safety Council To Hold Workshops page: 61
- Good Luck Chartering The "Rust Bucket of the Month" page: 62
- Eyes Onboard page: 62
- Subsea Installation, Heavy Lift And Transport Vessels Show Muscle In FPSO Market page: 64
- Great Lakes' Biggest Dual-Mode ITB Begins Service page: 65
- Hike Metal Constructs Boat For Pilotage Authority page: 65
- Kvichak Delivers To Pilots Association page: 66
- Gladding-Hearn Delivers First Of Two To Charleston Pilots page: 70
- Bollinger To Construct Supply Boat For Lytal Ocean page: 71
- Latest Developments in Engine Room Simulators page: 74
- U.S. Navy Keeps Ship-Shape With Software page: 76
- OSL, Philadelphia Gear Form Alliance page: 79