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LHD 8 Propulsion Machinery Control System Design and Integration

[+] Author Affiliations
Vincent P. Tolotta

Naval Surface Warfare Center, Philadelphia, PA

Howard Harris

NAVSEA, Washington, DC

Paper No. GT2006-91313, pp. 147-154; 8 pages
  • ASME Turbo Expo 2006: Power for Land, Sea, and Air
  • Volume 5: Marine; Microturbines and Small Turbomachinery; Oil and Gas Applications; Structures and Dynamics, Parts A and B
  • Barcelona, Spain, May 8–11, 2006
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 0-7918-4240-1 | eISBN: 0-7918-3774-2
  • Copyright © 2006 by ASME


The LHD 8 machinery plant represents a significant departure from previous LHD class ships with a propulsion system that combines an LM2500+ and electric motor per shaft. The propulsion system integrates the first US Navy application of this gas turbine engine ultimately with the ship service electric plant. This complex system affords many advantages to the ship designers with respect to reconfigurability, survivability and maneuvering. However the design challenges the ability of the Machinery Control System (MCS) to maximize the effectiveness of this complex machinery plant. The MCS is a software-based distributed system utilizing a high bandwidth network. The system relies on the VME platform for control processing, data acquisition and operator control. The MCS design and architecture is presented. Decisions concerning network capabilities, distribution of control, and processing are considered. The impact of electric plant complexities upon the propulsion system requirements will also be addressed. The MCS architecture solution will describe LM2500+ integration issues with an electric motor.

Copyright © 2006 by ASME



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