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NDIA – Expeditionary Warfare Conference

NDIA – Expeditionary Warfare Conference. 19 OCTOBER 2004. Howard Fireman NAVSEA (SEA 05D) (202) 781-1113 FiremanH@navsea.navy.mil. Take Aways. Technology base of Naval Architecture The key to Seabasing is Systems of Systems Engineering and the “Force Architecture”.

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NDIA – Expeditionary Warfare Conference

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  1. NDIA – Expeditionary Warfare Conference 19 OCTOBER 2004 Howard Fireman NAVSEA (SEA 05D) (202) 781-1113 FiremanH@navsea.navy.mil

  2. Take Aways • Technology base of Naval Architecture • The key to Seabasing is Systems of Systems Engineering and the “Force Architecture”

  3. Speed Seakeeping Payload Range Displacement Monohulls Displacement Multihulls SWATH & Variants Planing Hulls SES Hovercraft Hydrofoils Lifting Body & Hybrids SOA 25-40knots High Trans-Ocean Excellent at Speed ARCS – Good at rest ~55 knots Trans-Ocean Good Trans-Ocean Low Excellent all Around 14-30 knots Moderate Trans-Ocean High Accelerations 60 knots+ Good with Ride control Low Short Range 60-65 knots Moderate with Ride control 45-55 knots Short Range Low Excellent High, Poor Low Speed Low Short Range 30-70 knots Excellent at High and Low Speed Trans-Ocean Good 30-45 knots Hull Form Versus Performance Features

  4. Requirements Analysis • Iron Triangle (Speed, Endurance, Payload) • Reality ($$) • Performance Requirements (Beachable, Surface Connector Interfaces, Aviation, etc.) • Art of the Possible • Sensitivity Analysis • Find the knee in the curves • Process is “Validated Requirements” SEABASING – A Systems of Systems Engineering Problem

  5. Ship Technologies • Critical technologies • Advanced high-speed hullforms • Drag reduction • Hull/propulsor integration • High power density propulsion machinery • Fuel efficient power generation machinery • Hydrodynamic structural loads • Transfer of cargo at sea (Sea State 4) • Lightweight structures • Non-ferrous ship structures • Signatures • Beach interface

  6. DEFINE THE PROBLEM Sea Connector Concept Advanced Support Base (ASB) High Speed Sealift (HSS), 3N CONUS 6000 nm High Speed Connector (HSC), 2B/2N 2000 nm 6000 nm Sea Base 2000 nm Parent Concepts: 1B = High Speed Assault Connector (1B) Short Range, Medium to High Speed Beachable 2B/2N = High Speed Connector (2B) Medium Range, Medium to High Speed Beachable (2N) Medium Range, Medium to High Speed Not-Beachable 3N = High Speed Sealift (3N) Long Range, High Speed Not-Beachable 200 nm High Speed Assault Connector (HSAC), 1B OBJECTIVE

  7. NAVAL SHIP DESIGNConventional vs New Approach • New Approach: Systematic Exploration of Design Space • - An automated design process. • Systematic exploration of design space • Easily optimized to meet multiple, competing objectives. Conventional Approach: Point Based Exploration of Design Space - Designs are manually generated - Time-consuming - Few data points - Limited knowledge gained from the few design points - Optimization is difficult due to competing performance and economic requirements.

  8. DESIGN SPACE EXPLORATION Dynamic Contour Profiler Example • Placing Design Constraints • Beam • Draft • Max Sustained Speed • Cost Cost Beam Feasible Design Space Max Speed Draft Feasible Design Space Cost Increase Beam Constraint Decrase Draft Constraint Increase Max Speed Constraint Decrease Cost Constraint Beam Cost Max Speed Draft Beam Feasible Design Space Relax Beam Constraint Maintain Draft Constraint Relax Max Speed Constraint Maintain Cost Constraint Draft Max Speed

  9. Mapping Platform Characteristics to Fleet Requirements FLEET CAPABILITY/COST TRADE-OFF ENVIRONMENT Platform Trade Space Constrained by Desired/Required Fleet MoPs Required/Desired Fleet Performance Fleet Architecture Trade-Off Environment (Fleet MetaModel) Input A Response A Sea Connector Platform Trade-off Environment (MetaModel) High Speed Sealift High Speed Connector High Speed Assault Connector Input B Response B Platform Independent Input Variables Architecture Responses (MoP & MoEs) COST Input C Response C Input D Response D

  10. Sea Connectors - Concepts Sea Base Connector – L (SBC-L) (Concept) High Speed Vessel (HSV 2) High Speed Response Ship (HSRS)(Concept) High Speed Afloat Forward Staging Base (HSAFSB) (Concept) Logistics Support Vessel (LSV) Landing Craft, Tank, Air Cushion (LCTAC) (Concept) Landing Craft, Utility (Replacement) LCU-R (Concept) Landing Craft, Air Cushion Heavy (HLCAC) (Concept) Combat Logistics Vessel (CLV) (Concept)

  11. QUESTIONS?

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