ASNE SymposiumDate April 16, 2008

Perry D. HaymonTechnical Director

Northrop Grumman Corporation

Topside Design/Integration from the Shipyard Point of View

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Integrated Topside - Definition

• A multi-disciplined approach for designing or laying out the external configuration of a ship.

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MaterialsNaval Architecture

Aviation

Signatures

Survivability

HM&E

C4I

Combat Systems

EM Issues

Topside Design

-Composites-RAM/RAS-EO/IR-Windows

-Boats/Anchors-RAS/FAS-Lights-Vents-Nets

-Helo Control Systems-RAST-TACAN-GSI-IFF-Air Wake

-Structures-Hull Form/ Shaping-Arrangements

-Sensors-Launchers-Guns-Countermeasures

-Shock-Damage Control-Recoverability-Firefighting

-HF-NAV-SATCOM-VHF/UHF

-RCS-Acoustic-Visual-IR

-EMC-EMI-Blockage

Safety

A Multi-Disciplined Approach

Integrated

NAVSEA’s DefinitionTopside Design Incorporates Many Disciplines

-Safety Nets-Life Lines/Stanchions-RADHAZ-Pointing/Firing Cut Outs

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Integrated Topside - Traditional view

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Integrated Topside – Antenna Challenge!

• Performance (bandwidth, multiple simultaneous links, etc.)

• Topside weight (ship stability)

• Topside antenna blockage (“clutter”)

• Mutual interference (EMI)

• Signature (RCS, IR)

• Maintenance/Manning

• Total Operational Costs

• Increasing threat

What are our concerns?

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First – Design Requirements

• Loading– Marine Environments

• Seaway Loading– Wave Slap/Green-Water

Loading, Sea Conditions, Ship Motion/Accelerations

• Salt Fog/Salt Spray, Corrosion– Vibration

• Shipboard Vibration• Blade Rate

– Shock• UNDEX – Direct Mounted

Equipment

• HM&E– Weight, Power and Cooling– Maintenance

• Life Cycle

• Material Selection

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Integrated Topside - Structural Challenge!

Systems must operate where a Navy ship operates.

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Second – Physical Integration

• Arrangements– Foot Print vs. Surface

Area

• Attachment Methods– Foundations vs.

Perimeter attachments– Internal Structural

supports

• Transitions

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Third – Can we build/integrate it?

Requirements development and design MUST incorporate shipyard producibility aspects

– Environment– Production Capabilities– Tolerances– Craft Skill Level

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Fourth – Unfamiliar/Uncomfortable

• The Risk – Input from areas we do not understand– Real/Perceived

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What do we need to know?

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Everything

• Stove pipes limits success– Stove pipes produce great

products but integration piece is lacking

• Every Discipline must be actively involved in the designs– Equipment Manufacturers– System Integrators– Software Developers– Physical Integrator

What do we need to do?

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Leave our comfort Zone

• Learn to communicate across disciplines– Understand each others pain– Have open and honest discussion concerning compromise

• Get involved early in sub-system designs– It easier to modify designs early in the process to support

integration

• Understand stove pipes will not work– Stove pipe organizations are not the problem – communication is

the problem– Need to learn to work across existing stovepipes

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A Stove Pipe Success

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Summary

• Everyone needs to feel pain

• Compromise can and will work

• Communicate

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