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

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

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Center for Ocean Engineering Naval Construction & Engineering Program Department of Mechanical Engineering Concept Design for a Strike Littoral Intelligence Surveillance and Reconnaissance Submarine SL SR Ship Design and Technology

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Center for Ocean Engineering Naval Construction & Engineering Program Department of Mechanical Engineering

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

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Center for Ocean Engineering Naval Construction & Engineering Program Department of Mechanical Engineering

Acknowledgements

27 April 2012 SLISR 2

  • 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

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Center for Ocean Engineering Naval Construction & Engineering Program Department of Mechanical Engineering

Customer Requirements and Assumptions

Customer Requirements Major Assumptions

  • 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”

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Threshold Objective Speed 25 32 Crew Size 156 110 Crew accommodations 90% of crew size 100% of crew size SOF Capability No Lockout chamber Integrated Lockout chamber Endurance 90 days 120 days Max Operating Depth 80% of VIRGINIA 100% of VIRGINIA Hull Diameter 34 feet 28 feet

27 April 2012 SLISR

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Center for Ocean Engineering Naval Construction & Engineering Program Department of Mechanical Engineering

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

27 April 2012 SLISR 4

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Center for Ocean Engineering Naval Construction & Engineering Program Department of Mechanical Engineering

Results Summary

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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 SOF Capability No Lockout chamber Integrated Lockout chamber PMT Embedded Lockout 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)

27 April 2012 SLISR

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Center for Ocean Engineering Naval Construction & Engineering Program Department of Mechanical Engineering

PMT Design Details

  • Size of VIRGINIA block III
  • Access from PH
  • Connections

– Data – Power – Hydraulic – Pneumatic

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Center for Ocean Engineering Naval Construction & Engineering Program Department of Mechanical Engineering

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) – 0.721 Propulsive Coefficient

7 27 April 2012 SLISR

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Center for Ocean Engineering Naval Construction & Engineering Program Department of Mechanical Engineering

Envelope / Powering and Resistance

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Center for Ocean Engineering Naval Construction & Engineering Program Department of Mechanical Engineering

External Arrangements

9 27 April 2012 SLISR

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Center for Ocean Engineering Naval Construction & Engineering Program Department of Mechanical Engineering

External Arrangements

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Center for Ocean Engineering Naval Construction & Engineering Program Department of Mechanical Engineering

Extensible Bridge

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Center for Ocean Engineering Naval Construction & Engineering Program Department of Mechanical Engineering

Extensible Bridge

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Center for Ocean Engineering Naval Construction & Engineering Program Department of Mechanical Engineering

Forward Arrangements

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FCUL FCLL FCML Bridge Access Reconfigurable Berthing

27 April 2012 SLISR

FWD

Ship’s Office 3-inch Launcher WRSRs Crew Berthing Crew Berthing Habitability Fan Room CPO Berthing Diesel Generator Radio Control COSR Crew’s Mess Galley Aux 4 Aux 3 Wardroom

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Center for Ocean Engineering Naval Construction & Engineering Program Department of Mechanical Engineering

Reconfigurable Berthing

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Center for Ocean Engineering Naval Construction & Engineering Program Department of Mechanical Engineering

Reconfigurable Berthing

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2 4 12

DOOR DOOR DOOR

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Center for Ocean Engineering Naval Construction & Engineering Program Department of Mechanical Engineering

Reconfigurable Berthing

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14

DOOR DOOR DOOR

4

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Center for Ocean Engineering Naval Construction & Engineering Program Department of Mechanical Engineering

Forward Arrangements

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6 12

DOOR DOOR DOOR

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Center for Ocean Engineering Naval Construction & Engineering Program Department of Mechanical Engineering

Forward Arrangements

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10 8

DOOR DOOR DOOR

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SLIDE 19

Center for Ocean Engineering Naval Construction & Engineering Program Department of Mechanical Engineering

Engineering Plant

19 Turbine Generator Turbine Generator LET Maneuvering RDP Motor Controllers RDP Filters Switchboards Switchboards Reactor Instrumentation Turbine Generator Turbine Generator Switchboards Switchboards AC Unit AC Unit HPAC HPAC Main Condenser Lab 27 April 2012 SLISR Reserve Feed Tank Reserve Feed Tank Ship Service Hydraulics PPFW HX PPFW HX Hotwell Reverse Osmosis Units MSW Pump MSW Pump Feed Pumps PPFW Pump PPFW Pump

FWD

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Center for Ocean Engineering Naval Construction & Engineering Program Department of Mechanical Engineering

Surfaced Trim and Stability

  • Draft - 26.6 ft.
  • Trim - 4.94 ft. by the stern (1.15o)
  • GMt - 5.21 ft.
  • Roll Period - 9.68 sec

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Center for Ocean Engineering Naval Construction & Engineering Program Department of Mechanical Engineering

Payload Fraction

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Center for Ocean Engineering Naval Construction & Engineering Program Department of Mechanical Engineering

Weight and Cost

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A‐1 Weight

5932 LT

Lead (Fraction of A‐1)

574 LT (9.7%)

A weight

6506 LT

Variable Load

616 LT

NSC

7122 LT

MBT (% Reserve Buoyancy)

1211 LT (17%)

Submerged Displacement

8333 LT

Free Flood Volume

1150 LT

Envelope Displacement

9483 LT

Service Life

30 years

Initial Operating Capability

2025

Total Ship Acquisition

20

Production Rate

1 per year

Base Fiscal Year

2012

Inflation Rate

3.5%

Builder Profit

13%

Lead Ship Acquisition Cost

$2.44B

27 April 2012 SLISR

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Center for Ocean Engineering Naval Construction & Engineering Program Department of Mechanical Engineering

Conclusions and Areas for Further Study

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  • 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

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Center for Ocean Engineering Naval Construction & Engineering Program Department of Mechanical Engineering

Questions?

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