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Shiphandling Simulation Application to Waterway Design (1992) / Chapter Skim
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7. Simulator Application in Harbor and Waterway Design
Pages 70-74

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From page 70...
... evaluate overall simulation usefulness, determine how simulation results were applied to the design prodevelop an understanding of some of the problems encountered and how they were addressed, understand how simulation validity was verified, and assess the impact of different levels of simulator sophistication on simulation results. Six simulation projects were selected for examination.
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From page 71...
... CASE STUDY RESULTS Simulation results were used to reduce costs, increase ship safety, and reduce environmental risks. In each of the six applications of simulators that were examined, the project sponsors were able to modify the waterway design and/or operation to achieve: significant cost savings, improvements in ship safety, and/or reduction in environmental risk.
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From page 72...
... However, a valid simulation in the strict engineering or scientific sense requires the measurement of environmental forces, their interaction, and the response of the ship to a degree that has never been attempted because of the great technical difficulty and costs involved. In each of the six projects, local pilots were extensively used, not only as participants in the simulation process, but also, in essence, as the final arbiters of the validity of the simulation.
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From page 73...
... For example, fast-time simulations (no person in the loop) were used extensively for the Thimble Shoal Channel and Atlantic Ocean Channel simulations during the Norfolk-Hampton Roads project conducted at the Computer Aided Operations Research Facility (CAORF)
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From page 74...
... Simulations usually were not used in the early stages of the design process. Simulations typically were used more often for design verification and refinement rather than for developing basic design parameters and limitations.
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Key Terms

  • simulation results
  • ship safety
  • six projects
  • simulation validity
  • environmental risk

  • current knowledge
  • safety margins
  • reduced dredging
  • additional dredging
  • comprehensive methodology

  • local pilots
  • applying simulation
  • waterway project
  • simulation process
  • projects reviewed

  • channel simulations
  • six applications
  • technical difficulty
  • bar channel
  • widening required

  • simulator facilities
  • simulations typically
  • thimble shoal
  • safety benefits
  • ship groundings

  • dredging activity
  • simulator sophistication
  • primary means
  • toxic substance
  • effective interaction


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