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Combat Hybrid Power System Component Technologies Technical Challenges and Research Priorities (2002) / Chapter Skim
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7 Computer Simulation for Storage Systems Design and Integration
Pages 57-66

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From page 57...
... It is equally manifest, for such complex systems, that simulation and modeling must be verified through hardware emulation. The CHPS program recognized the importance of both activities when it pursued the dual avenues of software simulation via the "CHPSET" code set and hardware emulation via the Systems Integration Laboratory (SIL)
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From page 58...
... Incorporation of appropriate CHPSET tools into a virtual battlefield environment to allow interactive mission development; 5. Expancled consideration of environmental factors (heat, cold, rain, mud, terrain roughness, and so on)
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From page 59...
... Vendors routinely provide either two-climensional or three-climensional mechanical models with mass properties of their hardware. Electrical component vendors routinely supply both datasheets ant!
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From page 60...
... and fielded hardware to ensure that the mociels operate as expected. Discussion item 4, above, actresses the potential for using CHPS vehicle simulators to assist in establishing an unclerstancling of how best to use the vehicle during the various modes of operation with power management as the principal consideration.
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From page 61...
... This technique provides for a more realistic measure of mission effectiveness and does not rely on a predefined mission profile. NRMM predicts speed using the powertrain-clepenclent maximum tractive force versus speed curve, the maximum tractive force available from the terrain, the speectreducing slip that wild occur on the terrain, the motion resistance forces acting on the vehicle, ant!
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From page 62...
... Various operating theaters and seasonal scenarios were used in the study to relate the effective mission resistance and associated power requirements for several mission concepts. In abolition, ERDC clevelopecI a special technique for determining a resistance force associated with terrain 62
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From page 63...
... This additional resistance force is needed for the special application of using NRMM to define power requirements for CHPS vehicles. SUMMARY A summary of the technical challenges and opportunities discussed above for improvement of computer simulation for the design of storage systems and components is given in Table 7-3.
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From page 64...
... ...... Accurate simulation of hardware performance Cooling airflow Linkage of CHPSET codes Incotporation of CHPSET tools in a virtual battlefield environment Modeling cooling effectiveness and cooling airflow, especially through combat grillwork Effective information transfer between system designers and component designers Difficulty of modeling hardware provided by vendors Understanding of power management during the various modes of operation Consideration of Need for realistic environmental factors in mission-related CHPSET resistance data R&D Priorities Validation using data from the Systems Integration Laboratory and possibly hybrid HMMWV and Scout vehicles Resemblance of emulation hardware to notional, demonstrator-level hardware Fidelity of vendorsupplied models Compatibility of models with CHPSET tools Successful integration of a CHPSET model into a higher-level simulation Successful incorporation of NATO Reference Mobility Model (NRMM)
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From page 65...
... Design-specific, skidmounted hardware emulators of Future Combat System Enhancement of emulator fidelity Resemblance of emulation hardware to notional, demonstrator-level hardware Development of design specifics for notional, demonstrator-level systems ...
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Key Terms

  • solid model
  • tool kit
  • resistance force
  • technical challenges
  • computer simulation

  • analysis tool
  • route analysis
  • chpset codes
  • input data
  • mission profile

  • integration laboratory
  • user options
  • major items
  • chps vehicles
  • battlefield environment

  • expanded solid
  • software tools
  • failure modes
  • terrain roughness
  • effects analysis

  • power requirements
  • chpset models
  • vendors routinely
  • mobility model
  • parallel hybrid

  • tractive force
  • hybrid power
  • force associated
  • reference mobility
  • five major


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