Page 42: of Maritime Reporter Magazine (August 1997)

DECK MACHINERY & CARGO HANDLING EQUIPMENT REVIEW

EBI

Marine

Cranes

Oil Mist Causes Fire & Explosions

The QMI Multiplex Oil Mist Detection System detects oil mist well before the lower explosive limit is reached.

Full Display in the Engine Control Room 42 Circle 211 on Reader Service Card Marjtjme Rep0rter/Engineering NeWS

Fuses FS1 & FS2

Operating instructions

Security switch

Fault directory

Easy Installation and Retrofit

AUTRONICA MARINE, USA • 234 Industrial Parkway • Northvale, N.J. 07647

Phone: (201) 768-1886 • Fax: (201) 768-2570 email: [email protected]

AISE '97 Booth #532 probably be less than calculate! as this study used minimum va ues from ABS rules. "This test proved conclusivel what our customers and engineer have known for over 30 years said Mr. Lamer. Crusinn Bos

Yard is an example of one compan that has chosen Marine Travelift 200 BFM. Their model is equipped to lift up to 200,000 kg and fea tures full instrumentation in th operator's compartment and auto matic load equalization.

Ulstein Offers Customized

Winch Configurations . ..ill ji:::. sJII. .ill. ;;.y|||!

Based on Ulstein Dec s

Machinery's standard product and options program, users can report- edly tailor winch and windlass requirements to meet budgetary constraints or exacting technical and performance criteria.

Contracts to supply new-genera- tion winches to ships building in

South Korea, China, Italy, Spain,

Turkey and Sweden providing valuable references for Ulstein's latest winch technology.

Ulstein's anchor winch is a new design and its mooring winch is a refined version incorporating sub- stantial improvements.

The new winches are the result of the expertise of both Brattvaag and Norwinch in the creation of a new range of mooring and anchor- handling deck machinery. The new products feature a new foun- dation design which reportedly improves and simplifies transfer of external forces to the ship struc- ture.

Furthermore, the new winch design is easier to manufacture, making delivery time shorter, and the one-piece anchor winch foun- dation simplifies shipyard steel- work preparation and cuts instal- lation times.

Less steel is now used to create a stronger but lighter and more com- pact overall design. The driving force behind this program was to create an attractive and a price- competitive product.

According to Helge Vatnehol,

Ulstein technical manager, the compact dimensions of the new design have a layout advantage when applied to restricted fore- decks such as on containerships.

The designs for both mooring and anchor winches can also be cus- tomized with the addition of optional modular packages to pro-

Channel switches

Oil mist status LED and Alarm indicator

Channel identification

Setting indicator LED's

Isolate, test & reset switches

Magnetic pen

Oil mist level reading, setting & fault location readout

Alarm setting switches

Alarm level viewing switch steel, machinery, and outfitting weight coefficients (the ratio of each weight category to the boat lightweight), were calculated from the regression analysis formula, using the hull cubic number, (length x beam x depth)/100, for the various vessels.

It was concluded that the maxi- mum stress levels occurring on the hulls of vessels being lifted in slings is well below allowable ten- sion stress levels. The stress levels are less than one-third the allow- able tension and are unlikely to exceed the allowable compression.

The critical buckling stress for compression can only be deter- mined on a case-by-case basis for any vessel. The two sling analysis of the 300 BFM and 500 BFM mod- els show maximum bending stress levels that are approximately equal to those in the corresponding three sling analysis when hoisting boats of the same size and weight.

Actual stresses and deflections will

Cranes shown are installed aboard the

American

Heavy Lift vessel, Captain

H. A. Downing.

The vessel is built by

Avondale

Industries

Avondale,

Louisiana.

Techcrane International Inc.

Worldwide Marketing Co. For EBI MARINE CRANES 5001 Hwy 190, Covington, LA 70433 Tel:504/871-0056 Fax:504/871-0065

Circle 301 on Reader Service Card