NDLI: Unique Replacement Method Developed for the U.S. Navy’s Newest Gas Turbine Powered Warship

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Shaun, D. Hatcher Matthew, J. Driscoll Abe, L. Boughner
Abstract	The Navy’s newest big-deck Amphibious Assault Ship, LHD 8 Makin Island, is currently under construction and scheduled for delivery in late 2008. LHD 8 utilizes a gas turbine propulsion system that replaces the steam propulsion system used on the previous seven ships of the class. LHD’s are similar in design to aircraft carriers with a full length flight deck and island to the starboard side. Additionally the LHD 8 machinery spaces are directly below storage decks for mission equipment. Because of internal arrangements and the convoluted routes of the intake ducting the traditional method of removing the gas turbines through the superstructure via shore side crane was not possible. The LHD 8 will utilize a method of change out from within the ship. The paper will discuss the design considerations involved in developing this changeout method as well as a review and discussion of the physical changeout demonstration conducted by the shipbuilder. The paper will discuss the design development process such as the environmental qualifications of ship hardware, ship integrity and survivability, special tooling developed for LHD 8, differences from the traditional changeout methods as well as the US Navy’s maintenance philosophy for this ‘first-of-class’ ship design. Included in the paper will be ship drawings, photos and diagrams of the change out hardware, removal routes, special tooling and support equipment.
Sponsorship	International Gas Turbine Institute
Starting Page	395
Ending Page	404
Page Count	10
File Format	PDF
ISBN	9780791843178
DOI	10.1115/GT2008-50114
e-ISBN	0791838242
Volume Number	Volume 7: Education; Industrial and Cogeneration; Marine; Oil and Gas Applications
Conference Proceedings	ASME Turbo Expo 2008: Power for Land, Sea, and Air
Language	English
Publisher Date	2008-06-09
Publisher Place	Berlin, Germany
Access Restriction	Subscribed
Subject Keyword	Space Construction Cranes Engineering drawings Flight Naval architecture Maintenance Machinery Tooling Design Gas turbines Storage Ships Steam Hardware Propulsion systems Aircraft
Content Type	Text
Resource Type	Article

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