Newport News Shipbuilding A Division of HII Harold G Howard Ify Amene June 13 th 2022 ALTERNATE FALSE DECK DESIGN OPTIMIZATION AND QUALIFICATION Team Members HII Newport News Shipbuilding ID: 1020735
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1. NSRP SWSI Panel Alternate False Deck Design Optimization & Qualification Newport News ShipbuildingA Division of HIIHarold G. HowardIfy AmeneJune 13th 2022
2. ALTERNATE FALSE DECK DESIGN OPTIMIZATION AND QUALIFICATION Team Members:HII - Newport News ShipbuildingHarold HowardIfy AmeneJames BallHILTI CorporationEd HinsonHII - Ingalls Shipbuilding John Walks
3. Project Goal & ObjectivesGoal: This project is a continuation of the research provided by project 2015-464. It will seek to further define the opportunities presented by an alternative false deck design. The project goal is to optimize the design for weight & cost, and qualify to MIL-DTL-901E. Objectives: Optimize the design for weight & cost Reduced labor hours required to produce false deck through reduced hot-workReduced engineering and design hours required to design false decks through standardizationProvide OQE that meet environmental requirements for shipboard use and gain NAVSEA approval
4. Alternative False Deck DesignHILTI Stud Mounted Raised DeckStud Mounted to Reduce Hot-Work
5. Commercial Off The Shelf HILTI ProductsHILTI StrutStrut HS-13/16 – 12 Ga PGStrut HS-1-5/8 – 12 Ga PGHILTI COTS Components Promote Standardization HILTI Raised Deck Configuration
6. Commercial Off The Shelf HILTI ProductsHILTI Connection Components Reduced Welding Through Mechanical ConnectionsMQK 41/3 Bracket MQN Channel ConnectorMQW – 3 90-degree AngleMQB 41 X-Connection ClampMQM ¼” Wing Nut
7. Alternative False Deck Design Benefits Benefits Being AnalyzedReduce WeightRemove perimeter welded angle ironReduce number vertical supportsReduce panel weightInstall AL honeycomb vs. AL plateReduce LaborLess vertical supportsMechanical fittings vs. welded angle ironInstall welded studs vs. welded padsMaintain Ease of Vertical AdjustmentsAdjustable mechanical attachments Additional Benefits Being Evaluated Cross Platform Install StandardizationStandardize Honeycomb PanelsEvaluate attachment pointsPre-Install PreparationMaximize off ship preparation benefitsKitting and Pre-Assembly Optimize on ship preparation effectsLaser leveling across spaceCordless cutting tools for adjustmentsBenefit Focus of Alternate Design
8. Shock Qualification Approach for Alternative Design Heavyweight Shock TestDue to limited real estate on barge, the plan is to test a small configuration of the system If test is successful, use as basis for shock extension of full configurationTransient Shock AnalysisTo support extension of full configuration, the shock responses of the small and full configurations are compared via transient shock analysis perfomed on finite element models of both configurationsThe intent of this comparative evaluation is to verify that the full configuration is extendable from the small (test) configuration prior to the shock test
9. Heavyweight Barge Test PlanTest Procedure Approved by NAVSEA 05Test Facility – National Test Systems Rustburg, VATwo Alternate False Deck Test ArticlesTest Schedule – First Qtr. 2023 Test Funding – PendingPiggy-Back on Ingalls Barge TestAlternate False Deck Shock Test Article
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