NDLI: U.S. Navy Experience With SSS (Synchro-Self-Shifting) Clutches

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Morgan, L. Hendry Zekas, B. Michael
Copyright Year	2008
Abstract	The U.S. Navy has nearly forty years of experience using SSS (Synchro-Self-Shifting) Clutches in main reduction gears of gas-turbine-driven ships and propulsion systems with combinations of gas turbines and diesel engines or electric motors, and in steam-turbine propulsion plants for use with electric motor drives. Over 900 SSS Clutches have been installed in fourteen different classes of U.S. Navy ships, some in service for over thirty years. This paper presents a brief overview of the principle SSS Clutch design features and the operating experience in naval propulsion systems worldwide, including operation in various propulsion plants such as controllable reversible pitch (CRP) propellers, fixed-pitch propellers (FPP), etc. The paper will also focus on SSS Clutch designs for specific U.S. Navy applications and installations, U.S. Navy experience, and design changes and improvements that have been implemented since the initial U.S. Navy use of SSS Clutches. Detailed metric (statistical) data, used by the U.S. Navy to evaluate equipment performance and life cycle costs, such as mean time between failure (MTBF), mean time to repair (MTTR), mean logistics delay time (MLDT), and operational availability (Ao) will be used to support experience. In-service experience and failure modes will also be explained as well as findings from the evaluation of clutches that have been subjected to extreme operation/incidents such as overspeed, overtorque, high shock blast, and flood damage. The final part of the paper will discuss current/future applications on U.S. Navy vessels such as the LHD-8, LCS and others; and how the design/features of those SSS Clutch designs will satisfy the operational, reliability, and maintainability requirements established for each ship platform. The metrics and lessons learned will be shown to be equally applicable to clutches for critical auxiliary drive applications such as naval gas turbine generator starting and naval steam turbine generator turning gear systems and how these metrics and lessons learned are being applied for current and future U.S. Navy ship systems.
Sponsorship	International Gas Turbine Institute
Starting Page	463
Ending Page	474
Page Count	12
File Format	PDF
ISBN	9780791843178
DOI	10.1115/GT2008-51338
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	Equipment performance Maintainability Steam turbines Floods Electric motors Design Gas turbines Diesel engines Ships Propulsion Damage Propulsion systems Failure Turbines Failure mechanisms Life cycle costing Propellers Vessels Generators Carbon reinforced plastics Maintenance Navy Gears Delays Reliability Shock (mechanics) Logistics
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Italian Navy Application, Operation and Maintenance of Fiat - GE LM2500 Gas Turbine Propulsion Systems

Integration of the WR-21 Intercooled Recuperated Gas Turbine Into the Royal Navy Type 45 Destroyer

Operational Experience of the SSS (Synchro-Self-Shifting) Clutch for Naval Marine Applications

Propulsion Machinery of the “Koeln” Class Escort Frigates With Special Consideration of Gas Turbine Propulsion

High Performance Gearing for Modern Naval Gas Turbine Propulsion Systems

U.S. Navy Large Deck Amphibious Assault Ship: Steam to Gas Turbine Conversion

Spa “Mashproekt” Reversible Power Turbines

Energy-Efficient Naval Ships of the Future

The Impact of Steam Innovations on Ship Design: An Abbreviated History of Marine Engineering

U.S. Navy Experience With SSS (Synchro-Self-Shifting) Clutches

Similar Documents

Italian Navy Application, Operation and Maintenance of Fiat - GE LM2500 Gas Turbine Propulsion Systems

Integration of the WR-21 Intercooled Recuperated Gas Turbine Into the Royal Navy Type 45 Destroyer

Operational Experience of the SSS (Synchro-Self-Shifting) Clutch for Naval Marine Applications

Propulsion Machinery of the “Koeln” Class Escort Frigates With Special Consideration of Gas Turbine Propulsion

High Performance Gearing for Modern Naval Gas Turbine Propulsion Systems

U.S. Navy Large Deck Amphibious Assault Ship: Steam to Gas Turbine Conversion

Spa “Mashproekt” Reversible Power Turbines

Energy-Efficient Naval Ships of the Future

The Impact of Steam Innovations on Ship Design: An Abbreviated History of Marine Engineering

U.S. Navy Experience With SSS (Synchro-Self-Shifting) Clutches