1. NPS Project Capabilities Modeling the 3D Collision Track between USS GREENEVILLE and MV Ehime Maru Progress Report, 14 June 2001 Don Brutzman MOVES and Undersea Warfare Academic Groups Naval Postgraduate School brutzman@nps.navy.mil Modeling the 3D Collision Track between USS GREENEVILLE and MV Ehime Maru Progress Report, 14 June 2001 Don Brutzman MOVES and Undersea Warfare Academic Groups Naval Postgraduate School brutzman@nps.navy.mil

2. Background: Naval Postgraduate School “Navy’s University” Monterey California USN, USMC, USA, USAF, allied officers, civil serviceUSN, USMC, USA, USAF, allied officers, civil service Two-year masters’ degrees with thesesTwo-year masters’ degrees with theses Undersea Warfare Academic Group Multiple specialized degree programsMultiple specialized degree programs Curriculum includes UW3303 modeling & simulation courseCurriculum includes UW3303 modeling & simulation course MOVES Institute Modeling, Virtual Environments & SimulationModeling, Virtual Environments & Simulation Mix of computer science & ops research simulationMix of computer science & ops research simulation “Navy’s University” Monterey California USN, USMC, USA, USAF, allied officers, civil serviceUSN, USMC, USA, USAF, allied officers, civil service Two-year masters’ degrees with thesesTwo-year masters’ degrees with theses Undersea Warfare Academic Group Multiple specialized degree programsMultiple specialized degree programs Curriculum includes UW3303 modeling & simulation courseCurriculum includes UW3303 modeling & simulation course MOVES Institute Modeling, Virtual Environments & SimulationModeling, Virtual Environments & Simulation Mix of computer science & ops research simulationMix of computer science & ops research simulation

3. Project Description Goal Model all aspects of ship collision with full precisionModel all aspects of ship collision with full precisionMotivation Produce high-resolution 3D virtual environmentProduce high-resolution 3D virtual environment Utilize unclassified information assetsUtilize unclassified information assets Provide challenging projects for NPS studentsProvide challenging projects for NPS students Serve as learning tool for studying lessons learnedServe as learning tool for studying lessons learned Prototype for visualizing at-sea tactical awarenessPrototype for visualizing at-sea tactical awarenessGoal Model all aspects of ship collision with full precisionModel all aspects of ship collision with full precisionMotivation Produce high-resolution 3D virtual environmentProduce high-resolution 3D virtual environment Utilize unclassified information assetsUtilize unclassified information assets Provide challenging projects for NPS studentsProvide challenging projects for NPS students Serve as learning tool for studying lessons learnedServe as learning tool for studying lessons learned Prototype for visualizing at-sea tactical awarenessPrototype for visualizing at-sea tactical awareness

4. Modelers and sources Modelers Undersea warfare students: track reconstructionUndersea warfare students: track reconstruction MOVES students: 3D modelsMOVES students: 3D models Data Sources Court of Inquiry report has massive details of interest http://www.cpf.navy.mil/cpfnews/coidownloadmain.htmlCourt of Inquiry report has massive details of interest http://www.cpf.navy.mil/cpfnews/coidownloadmain.html National Transportation Safety Board (NTSB) advisoryNational Transportation Safety Board (NTSB) advisory Various press reportsVarious press reportsModelers Undersea warfare students: track reconstructionUndersea warfare students: track reconstruction MOVES students: 3D modelsMOVES students: 3D models Data Sources Court of Inquiry report has massive details of interest http://www.cpf.navy.mil/cpfnews/coidownloadmain.htmlCourt of Inquiry report has massive details of interest http://www.cpf.navy.mil/cpfnews/coidownloadmain.html National Transportation Safety Board (NTSB) advisoryNational Transportation Safety Board (NTSB) advisory Various press reportsVarious press reports

5. Court of Inquiry download page

6. Reconstruction chartlet from Court of Inquiry

7. New York Times figure 8 March 2001

8. National Transportation Safety Board reconstruction Initial report 2 March 2001Initial report 2 March 2001 http://www.ntsb.gov/Pressrel/2001/010302.htmhttp://www.ntsb.gov/Pressrel/2001/010302.htm Initial report 2 March 2001Initial report 2 March 2001 http://www.ntsb.gov/Pressrel/2001/010302.htmhttp://www.ntsb.gov/Pressrel/2001/010302.htm

9. National Transportation Safety Board 3D plot Initial report 2 March 2001Initial report 2 March 2001 Difficult to visualizeDifficult to visualize Initial report 2 March 2001Initial report 2 March 2001 Difficult to visualizeDifficult to visualize

10. 3D Scene and Ship Models Initial modeling complete Spreadsheet-based dead reckoning of reconstructionSpreadsheet-based dead reckoning of reconstruction Aggregate scene with time-based ship tracksAggregate scene with time-based ship tracks –WaypointInterpolatorPrototype 688 class submarine (USS GREENEVILLE)688 class submarine (USS GREENEVILLE) MV Ehime MaruMV Ehime Maru Initial control model of sea state at collision pointInitial control model of sea state at collision point Autogeneration of model libraryAutogeneration of model library Initial modeling complete Spreadsheet-based dead reckoning of reconstructionSpreadsheet-based dead reckoning of reconstruction Aggregate scene with time-based ship tracksAggregate scene with time-based ship tracks –WaypointInterpolatorPrototype 688 class submarine (USS GREENEVILLE)688 class submarine (USS GREENEVILLE) MV Ehime MaruMV Ehime Maru Initial control model of sea state at collision pointInitial control model of sea state at collision point Autogeneration of model libraryAutogeneration of model library

11. Collision: USS Greeneville, MV Ehime Maru

12. Entry view

13. USS Greeneville, port quarter

14. USS Greeneville, aft stbd quarter

15. Ehime Maru, stbd quarter

16. Ehime Maru, astern

17. Controllable sea state

18. Sea state from above

19. Key Coordinates for the VRML Map of Oahu X = 0 Y = 0 Z = 0 X = 0 Y = 0 Z = -110,572 X = 147,569 Y = 0 Z = -110,572 X = 147,569 Y = 0 Z = 0 X = 61,000 Y = 20,000 Z = 23,000 Collision Area Default viewpoint Oahu Molokai

20. Oahu 3D model in progress

21. Technology used: X3D Extensible 3D (X3D) Graphics Specification 3 rd generation Virtual Reality Modeling Language3 rd generation Virtual Reality Modeling Language ISO international standard, non-proprietaryISO international standard, non-proprietary 3D graphics interchange for World Wide Web3D graphics interchange for World Wide Web Suitable for scaling up to very large networked worldsSuitable for scaling up to very large networked worlds Open source, commercial implementations availableOpen source, commercial implementations available http://www.web3D.org/x3d.htmlhttp://www.web3D.org/x3d.html NPS is leading X3D developmentNPS is leading X3D development Extensible 3D (X3D) Graphics Specification 3 rd generation Virtual Reality Modeling Language3 rd generation Virtual Reality Modeling Language ISO international standard, non-proprietaryISO international standard, non-proprietary 3D graphics interchange for World Wide Web3D graphics interchange for World Wide Web Suitable for scaling up to very large networked worldsSuitable for scaling up to very large networked worlds Open source, commercial implementations availableOpen source, commercial implementations available http://www.web3D.org/x3d.htmlhttp://www.web3D.org/x3d.html NPS is leading X3D developmentNPS is leading X3D development

22. Future work: already in progress Analysis Spline plots for tracksSpline plots for tracks Improved sea-state rendering and controlImproved sea-state rendering and control Evaluate 6 degree-of-freedom (DOF) hydrodynamicsEvaluate 6 degree-of-freedom (DOF) hydrodynamics 3D modeling Periscope viewpoint and animated tourPeriscope viewpoint and animated tour Improved usability: control over scenario clock, etc.Improved usability: control over scenario clock, etc. Fog, cloudiness, time of day, other visual effectsFog, cloudiness, time of day, other visual effects Integrated rendering of sonar and radarIntegrated rendering of sonar and radar Multimedia integration: audio, video, hypertext, still imageryMultimedia integration: audio, video, hypertext, still imageryAnalysis Spline plots for tracksSpline plots for tracks Improved sea-state rendering and controlImproved sea-state rendering and control Evaluate 6 degree-of-freedom (DOF) hydrodynamicsEvaluate 6 degree-of-freedom (DOF) hydrodynamics 3D modeling Periscope viewpoint and animated tourPeriscope viewpoint and animated tour Improved usability: control over scenario clock, etc.Improved usability: control over scenario clock, etc. Fog, cloudiness, time of day, other visual effectsFog, cloudiness, time of day, other visual effects Integrated rendering of sonar and radarIntegrated rendering of sonar and radar Multimedia integration: audio, video, hypertext, still imageryMultimedia integration: audio, video, hypertext, still imagery

23. Contact Don Brutzman brutzman@nps.navy.milhttp://web.nps.navy.mil/~brutzman Code UW/Br, Naval Postgraduate School Monterey California 93943-5000 USA 831.656.2149 voice 831.656.3679 fax Don Brutzman brutzman@nps.navy.milhttp://web.nps.navy.mil/~brutzman Code UW/Br, Naval Postgraduate School Monterey California 93943-5000 USA 831.656.2149 voice 831.656.3679 fax