Concept Design for a Strike Littoral Intelligence Surveillance and - PowerPoint PPT Presentation

Center for Ocean Engineering Naval Construction & Engineering Program Department of Mechanical Engineering Concept Design for a Strike Littoral Intelligence Surveillance and Reconnaissance Submarine SL Ī SR Ship Design and Technology Symposium CDR John Campbell LCDR Greg Crawford LT Eric Thurkins 27 April 2012

Center for Ocean Engineering Naval Construction & Engineering Program Acknowledgements Department of Mechanical Engineering NAVSEA 05U Portsmouth Naval Shipyard • • – Stu Mennitt – Captain David Hunt C300 – Mark Arvidson – Mike Desjardins C1100 NUWC Newport – Marc Baillargeon C900 • – Tim Comtois C964 – John Babb – Paul Bedard C964 OPNAV N87 • – Captain Dave Goggins Government Support Contractors • – Jim Dullea – Orbis Inc. – Ray Shoaff – Shoaff Consulting Services, Inc. – Noel Tessier – Engineered Syntactic Systems – David Gillingham – Institute for Defense Analysis 27 April 2012 SLISR 2

Customer Requirements Center for Ocean Engineering Naval Construction & Engineering Program Department of Mechanical Engineering and Assumptions Customer Requirements Major Assumptions Threshold Objective • Able to Accomplish All SSN Speed 25 32 Mission Sets Crew Size 156 110 Crew 90% of 100% of crew • Modular Construction accommodations crew size size Techniques Utilized Integrated No Lockout SOF Capability Lockout chamber • Cost Requirements Based On chamber FY-12 Dollars Endurance 90 days 120 days Max Operating 80% of 100% of • Nuclear Powerplant Treated as Depth VIRGINIA VIRGINIA a “ Black Box ” Hull Diameter 34 feet 28 feet 27 April 2012 SLISR 3

Design Approach and Center for Ocean Engineering Naval Construction & Engineering Program Department of Mechanical Engineering Decision Framework • Design Approach • Evaluation Criteria – Payload Modularity – Grounding Capability – Cost and Risk – Pressure Hull Material Mitigation/Minimization – Sail design (or none) – Innovation of Design – PMT orientation • Decision Parameters – Power plant – Minimum Hull Dia. 28 ’ – Emergency power – Maximum Hull Dia. 34 ’ – Control Planes – Pressure Hull Right Circular Ring Stiffened Cylinder – Payload Modular Tube (PMT) Concept 27 April 2012 SLISR 4

Center for Ocean Engineering Naval Construction & Engineering Program Results Summary Department of Mechanical Engineering Threshold Objective SLISR Speed (knots) 25 32 31 Crew Size 156 110 147 Crew accommodations 90% of crew size 100% crew size 100% crew size Integrated Lockout PMT Embedded Lockout SOF Capability No Lockout chamber chamber Chamber (when loaded) Endurance 90 days 120 days 90 days Max Operating Depth 80% of VIRGINIA 100% of VIRGINIA >100% of VIRGINIA Pressure Hull Diameter 34 feet 28 feet 34 feet Estimated Acquisition 2.7 B$ (FY12) 2.0 B$ (FY12) 2.44 B$ (FY12) Cost 27 April 2012 SLISR 5

Center for Ocean Engineering Naval Construction & Engineering Program PMT Design Details Department of Mechanical Engineering • Size of VIRGINIA block III • Access from PH • Connections – Data – Power – Hydraulic – Pneumatic 27 April 2012 SLISR 6

Center for Ocean Engineering Naval Construction & Engineering Program Stern Configuration Department of Mechanical Engineering • Rim-Driven Propulsors (RDP) – Modeled on tested RDPs by EB, PSU and Hamburg Model Basin – Partially embedded – 18 MW max power each (supplied 16 MW actual) – 0.721 Propulsive Coefficient 27 April 2012 SLISR 7

Envelope / Powering and Center for Ocean Engineering Naval Construction & Engineering Program Department of Mechanical Engineering Resistance 27 April 2012 SLISR 8

Center for Ocean Engineering Naval Construction & Engineering Program External Arrangements Department of Mechanical Engineering 27 April 2012 SLISR 9

Center for Ocean Engineering Naval Construction & Engineering Program External Arrangements Department of Mechanical Engineering 27 April 2012 SLISR 10

Center for Ocean Engineering Naval Construction & Engineering Program Extensible Bridge Department of Mechanical Engineering 27 April 2012 SLISR 11

Center for Ocean Engineering Naval Construction & Engineering Program Extensible Bridge Department of Mechanical Engineering 27 April 2012 SLISR 12

Center for Ocean Engineering Naval Construction & Engineering Program Forward Arrangements Department of Mechanical Engineering 3-inch Launcher Crew Berthing WRSRs Habitability Ship’s Fan Room Office Crew Berthing FCUL FWD Bridge Access Reconfigurable Berthing Aux 4 Crew’s COSR CPO Mess Berthing Diesel Control Generator Galley Wardroom Aux 3 Radio FCML FCLL 27 April 2012 SLISR 13

Center for Ocean Engineering Naval Construction & Engineering Program Reconfigurable Berthing Department of Mechanical Engineering 27 April 2012 SLISR 14

Center for Ocean Engineering Naval Construction & Engineering Program Reconfigurable Berthing Department of Mechanical Engineering 2 DOOR 4 DOOR 12 DOOR 15

Center for Ocean Engineering Naval Construction & Engineering Program Reconfigurable Berthing Department of Mechanical Engineering DOOR 4 DOOR 14 DOOR 16

Center for Ocean Engineering Naval Construction & Engineering Program Forward Arrangements Department of Mechanical Engineering DOOR 6 DOOR 12 DOOR 17

Center for Ocean Engineering Naval Construction & Engineering Program Forward Arrangements Department of Mechanical Engineering DOOR 10 DOOR 8 DOOR 18

Center for Ocean Engineering Naval Construction & Engineering Program Engineering Plant Department of Mechanical Engineering Maneuvering Switchboards Turbine Generator RDP LET RDP Motor Filters Reactor Controllers Instrumentation Turbine Generator Switchboards FWD PPFW PPFW HX Pump Reserve Feed Tank MSW AC Unit Pump Turbine Generator HPAC Switchboards Reverse Main Ship Service Feed Hotwell Osmosis Units Condenser Hydraulics Pumps Switchboards HPAC Turbine Generator MSW Pump AC Unit Reserve Feed Tank Lab PPFW PPFW HX Pump 27 April 2012 SLISR 19

Center for Ocean Engineering Naval Construction & Engineering Program Surfaced Trim and Stability Department of Mechanical Engineering • Draft - 26.6 ft. • Trim - 4.94 ft. by the stern (1.15 o ) • GM t - 5.21 ft. • Roll Period - 9.68 sec 27 April 2012 SLISR 20

Center for Ocean Engineering Naval Construction & Engineering Program Payload Fraction Department of Mechanical Engineering 27 April 2012 SLISR 21

Center for Ocean Engineering Naval Construction & Engineering Program Weight and Cost Department of Mechanical Engineering 5932 LT A ‐ 1 Weight 30 years Service Life 574 LT (9.7%) Lead (Fraction of A ‐ 1) Initial Operating 2025 Capability 6506 LT A weight Total Ship 20 Acquisition 616 LT Variable Load 1 per year Production Rate 7122 LT NSC MBT (% Reserve 2012 Base Fiscal Year 1211 LT (17%) Buoyancy) Submerged 3.5% Inflation Rate 8333 LT Displacement 13% Builder Profit 1150 LT Free Flood Volume Lead Ship Envelope $2.44B 9483 LT Acquisition Cost Displacement 27 April 2012 SLISR 22

Conclusions and Areas for Center for Ocean Engineering Naval Construction & Engineering Program Department of Mechanical Engineering Further Study • Unique and Capable Platform, Mission Ready • Stack Length Reduction through: – Elimination of Torpedo Room – Use of External RIM Driven Propulsors • Sail Elimination Reduced Drag – More Efficient Propulsion – Use of an Extensible Bridge • Mixed Gender Berthing Issue Solved • Payload Fraction Improvement • Additional Large Scale Hydrodynamic Analysis Necessary Refine “ Slab-Sided ” Non-Pressure Hull • • Redesign of Stern Section to Enhance Manufacturability 27 April 2012 SLISR 23

Center for Ocean Engineering Naval Construction & Engineering Program Department of Mechanical Engineering Questions? 24