MASSACHUSETTS INSTITUTE OF TECHNOLOGY Department of Ocean Engineering PROJECTS IN NAVAL SHIPS CONVERSION DESIGN IAP 2003

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1 MASSACHUSETTS INSTITUTE OF TECHNOLOGY Department of Ocean Engineering Objective: PROJECTS IN NAVAL SHIPS CONVERSION DESIGN IAP 2003 Approach: Major objectives in this project include: (a) application of your naval architecture and ship design education in a complete conversion/mod-repeat concept design process; (b) application of your MIT technical education to at least one area of detailed engineering in this project (ex: structures, hydrodynamics, cost, seakeeping, etc.) for each student on your project team and (c) demonstration of effective communications, in both written reports and oral presentations. These objectives must be considered in specifying requirements and planning individual projects. The format for the Design Report, specified below, provides a good summary of the project scope. You will accomplish the following: a. Mission Need Review. Perform a brief mission analysis, including Threat Assessment, Current Capability Assessment and Mission Need Statement (MNS). Present this mission need by 11 December Recommend alternatives for satisfying the mission need. These alternatives will form the basis for your design project. (Remaining Recitations can be used for groups to work on this.) Deliverable: MNS. b. Design Requirements and Plan. Plan your design process. Identify required operational capabilities, operational scenarios, and concept of operations. Set goals and constraints consistent with the MNS and establish a Design Philosophy. Your design constraints and goals should focus on effectiveness, with cost and risk being considered as well. The Design Philosophy should prioritize overall design goals and constraints. These should be quantified in a decision matrix for assessing the quality of your design and making decisions. Organize these factors in a decision hierarchy to apply AHP decision-making methods later in the design. Develop a work breakdown and schedule for your project. Define conversion design milestones, deliverables and individual work assignments/responsibility. Deliverable: Chapter 1 and associated Appendices of the Design Report. c. Conversion Concept Exploration. Establish an initial conversion/modification concept baseline for trade-off studies and structured decision-making based on cost-effectiveness. Individual trade-offs and decisions may involve only subsets of your total-ship decision hierarchy. For a conversion design the total matrix may be only a subset of a typical decision matrix for a new ship design. Conduct a technology survey and system trade-off studies. Assess and trade-off these variants within the constraints of your performance and cost thresholds to define a final conversion design concept. Deliverable: Chapters 1 and 2 and associated Appendices of the Design Report. 11/25/02 1

2 d. Conversion Feasibility. Further define your concept design, demonstrate its feasibility and assess its performance against requirements. Complete topside and internal arrangements. Complete detailed weight, liquid loading and area reports. Refine your design emphasizing naval architecture aspects (structure, seakeeping, maneuvering, propulsion). Present your Final Conversion Design. Deliverable: Conversion Design Report. Course Guidance and Schedule: The emphasis placed on each of the above tasks may vary depending on the particular design and the specific interest of the students. Project start and most intermediate dates may also be adjusted to best fit the specific project and other academic requirements of team members. Program sponsors must be identified and included in project interactions to the maximum extent possible. Informal design reviews with the Professors should be scheduled weekly during IAP, which is only four weeks long. Major milestones follow. NOTE will be in room (the Design Lab) from 9-12 daily.--it won t be available. 11 Dec 2002 Present MNS. 6 Jan IAP kick-off meeting. 7-8 Jan Rhino 3D Class 13 Jan 2003 Submit Draft Design Report Chapter 1 and related Appendices. 21 Jan 2003 Submit Draft Design Report Chapter 2 and related Appendices, including MIT Writing Consultant check-off. Wk of 21 Jan Progress Review Briefing/Program Sponsor Briefing 27 Jan 2003 Submit Draft Design Report Chapters 3 and 4 and related Appendices. 31 Jan Present Final Conversion Design. Submit Final Report, including MIT Writing Consultant check-off. The Program Sponsor interactions are intended to involve the team in interaction with an actual program office. The team is encouraged to arrange travel to the sponsor location for briefings after the initial concept briefing to the 13A faculty. The timing is important so that the program sponsor may have some decision making impact on the project. Each team is to prepare detailed minutes of these briefings to report results at progress meetings with the CUO and AO. A 13A faculty member will accompany the team if scheduling permits. The teams need to schedule a brief to their sponsors. How best to accomplish this will be left to the students and their sponsors to determine. In general, standard U.S. Navy ship design standards and practices (margins, stability criteria, strength criteria, etc) are required. Teams should question major "standard" criteria to ensure consistency with their design philosophy. (Students should understand the deviation and impact of these "standard" criteria.) Teams may propose deviations and conduct ship impact studies in areas with potential for improvement (reduced cost and/or increased performance). Minimum drawings and diagrams include details of the conversion aspects, with less detail for the balance of the ship. Details should include internal and external arrangement drawings (plan and profile including location of primary conversion system components) and analysis curves of ship performance impact due to the conversion (for example: speed/power curve, stability 11/25/02 2

3 curves, floodable length curve, damage stability and flooding diagrams, structural drawings, and major/critical system block diagrams). The design teams are required to take advantage of the MIT Writing Consultants in 14N317 for report review of formatting and writing skills. The MIT Writing web site has much information at web.mit.edu/writing. The report is to be reviewed by the MIT Writing Consultants at the midpoint and end of the project as a minimum. The final briefing (in PowerPoint format) and report (in Adobe Acrobat format), including all appendices and final presentation, shall be submitted for inclusion in the MIT 13A Ship Design and Shipbuilding Technology Symposium CD-ROM. All spreadsheets and computational programs used shall also be included in their original application format, i.e. *.xls for Excel or *.dwg for AutoCAD. If the outputs from these applications are used in the report, including appendices, these portions are to be scanned and incorporated into Adobe Acrobat.pdf format so that the entire report can be viewed digitally. These reports will be posted in DSpace; hence, format and file type are very important. More details on this will be provided during IAP. Course Administration: Registration Register for , 6 credit hours in the Spring semester, Design Teams Team 1 SSGN to host ALVIN Team 2 AGS on Spruance class DD Team 3 Commercial Oil Tanker to SOF/Aviation Support Professor Chip McCord room x rsmccord@mit.edu Professor John Amy room x jvamyjr@mit.edu Course Locker: Ref: PRINCIPLES OF NAVAL ARCHITECTURE, E. J. Lewis, Society of Naval Architects and Marine Engineers, INTRODUCTION TO NAVAL ARCHITECTURE, T. C. Gillmer and B. Johnson, U. S. Naval Institute Press, 1982 (Third Printing, 1987). INTRODUCTION TO NAVAL ARCHITECTURE, E. Tupper, Society of Naval Architects and Marine Engineers, Third Edition, A Reading Library File - Room Report Format Title Page Executive Summary Table of Contents 1.0 Mission Need 1.1 Defense or National Guidance and Policy 1.2 Threat 11/25/02 3

4 1.3 Current Capability Assessment 1.4 Mission Need (MNS in Appendix) 1.5 Recommended Alternatives 1.6 Results of MS 0 DAB (ADM in Appendix) 2.0 Design Requirements and Plan 2.1 Required Operational Capability 2.2 Concept of Ops/Operational Scenarios/Performance Assessment Models 2.3 Goals, Thresholds, Constraints and Standards 2.4 Design Philosophy and Decision Matrix 3.0 Concept Exploration 3.1 Baseline Concept Design (first cut for technology and system studies) 3.2 Alternative Technologies and Systems Conventional Shafted Propulsion System Electric Drive System with Fixed Pitch Propeller Podded Propulsion System 3.3 Technology and System Trade-off Studies 3.4 Concept Ship Variants 3.3 Variant Assessment and Trade-off Studies 3.4 Final Baseline Concept Design 4.0 Feasibility Study and Assessment 4.1 Design Definition Ship Geometry Principal Ship Characteristics Summary Lines Drawing Curves of Form Combat Systems/C4ISR/Mission Payload/Layout Topside Arrangement Arcs of fire Sensor Coverage Blockage Assessment EMI Considerations Propulsion, Electrical and Auxiliaries Resistance Speed/Power Analysis Machinery Arrangements Machinery Plant Description Propulsor Description Endurance Fuel Calculations Environmental Considerations Electric Load Analysis Electric Distribution system one line diagram Survivability and Signatures Arrangements Distributed Systems Susceptability Vulnerability Damage Tolerance Recoverability Manning 11/25/02 4

5 Berthing arrangements Arrangement General Arrangements Inboard Profile Deck Plans Tank Layouts Space/Area Balance Summary Structural Design Midship Section Concept Design Strength Curves Stillwater Hogging Sagging Weights, Stability and Margins Full Load Weight Summary Intact and Damaged Stability Min Operating Condition Weight Summary Intact and Damaged Stability Floodable Length Analysis 4.2 Performance Analysis (in mission ops/scenarios) Mission Survivability and Signatures Seakeeping and Maneuvering Ship Motion Predictions Flight Operations Operability Index for Sea State 5 Control Surface Design Turning Diameter Environmental Comparative Naval Architecture US and Foreign Ship Comparison 4.3 Operation and Support Manning Operating hours Fuel 4.4 Cost Lead Ship Acquisition Total Discounted Life Cycle Cost Cost Risk 5.0 Design Conclusions 5.1 Summary of Final Concept Design Comparison to Constraints, Goals, and Thresholds 5.2 Final Concept Design Assessment and Conclusions Appendices References 11/25/02 5