Concept Design for a Strike Littoral Intelligence Surveillance and Reconnaissance Submarine SLĪSR

Transcription

1 Concept Design for a Strike Littoral Intelligence Surveillance and Reconnaissance Submarine SLĪSR Ship Design and Technology Symposium CDR John Campbell LCDR Greg Crawford LT Eric Thurkins 27 April 2012

2 Acknowledgements NAVSEA 05U Stu Mennitt Mark Arvidson NUWC Newport John Babb 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 Portsmouth Naval Shipyard Captain David Hunt C300 Mike Desjardins C1100 Marc Baillargeon C900 Tim Comtois C964 Paul Bedard C964 2

3 Customer Requirements and Assumptions Customer Requirements Major Assumptions Threshold Objective Speed Crew Size Crew accommodations SOF Capability 90% of crew size No Lockout chamber 100% of crew size Integrated Lockout chamber Endurance 90 days 120 days Max Operating Depth 80% of VIRGINIA 100% of VIRGINIA Hull Diameter 34 feet 28 feet Able to Accomplish All SSN Mission Sets Modular Construction Techniques Utilized Cost Requirements Based On FY-12 Dollars Nuclear Powerplant Treated as a Black Box 3

4 Design Approach and Decision Framework Design Approach Payload Modularity Cost and Risk Mitigation/Minimization Innovation of Design Decision Parameters Minimum Hull Dia. 28 Maximum Hull Dia. 34 Pressure Hull Right Circular Ring Stiffened Cylinder Payload Modular Tube (PMT) Concept Evaluation Criteria Grounding Capability Pressure Hull Material Sail design (or none) PMT orientation Power plant Emergency power Control Planes 4

5 Results Summary Threshold Objective SLISR Speed (knots) Crew Size Crew accommodations 90% of crew size 100% crew size 100% crew size SOF Capability No Lockout chamber Integrated Lockout PMT Embedded Lockout 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 Cost 2.7 B$ (FY12) 2.0 B$ (FY12) 2.44 B$ (FY12) 5

6 PMT Design Details Size of VIRGINIA block III Access from PH Connections Data Power Hydraulic Pneumatic 6

7 Stern Configuration 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) Propulsive Coefficient 7

8 Envelope / Powering and Resistance 8

9 External Arrangements 9

10 External Arrangements 10

11 Extensible Bridge 11

12 Extensible Bridge 12

13 Forward Arrangements Crew Berthing 3-inch Launcher WRSRs Habitability Fan Room Crew Berthing Ship s Office Bridge Access FCUL FWD Reconfigurable Berthing Aux 4 Aux 3 Crew s Mess Galley Wardroom COSR Control Radio Diesel Generator CPO Berthing FCML FCLL 13

14 Reconfigurable Berthing 14

15 Reconfigurable Berthing 2 DOOR 4 DOOR 12 DOOR 15

16 Reconfigurable Berthing DOOR 4 DOOR 14 DOOR 16

17 Forward Arrangements DOOR 6 DOOR 12 DOOR 17

18 Forward Arrangements DOOR 10 DOOR 8 DOOR 18

19 Engineering Plant RDP RDP Motor Filters Controllers Maneuvering Switchboards LET Reactor Instrumentation Switchboards Turbine Generator Turbine Generator AC Unit Switchboards Switchboards AC Unit HPAC HPAC Lab Turbine Generator Turbine Generator Main Condenser Reserve Feed Tank Ship Service Hydraulics Reserve Feed Tank FWD Feed Pumps PPFW Pump PPFW Pump MSW Pump PPFW HX Reverse Osmosis Units MSW Pump PPFW HX Hotwell 19

20 Surfaced Trim and Stability Draft ft. Trim ft. by the stern (1.15 o ) GM t ft. Roll Period sec 20

21 Payload Fraction 21

22 Weight and Cost A 1 Weight 5932 LT Service Life 30 years Lead (Fraction of A 1) 574 LT (9.7%) A weight Variable Load NSC MBT (% Reserve Buoyancy) Submerged Displacement Free Flood Volume Envelope Displacement 6506 LT 616 LT 7122 LT 1211 LT (17%) 8333 LT 1150 LT 9483 LT Initial Operating Capability Total Ship Acquisition Production Rate per year Base Fiscal Year 2012 Inflation Rate 3.5% Builder Profit 13% Lead Ship Acquisition Cost $2.44B 22

23 Conclusions and Areas for 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 23

24 Questions? 24