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Enabling Technologies for Unified Life-Cycle Engineering of Structural Components (1991) / Chapter Skim
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2 DESIGN
Pages 13-18

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From page 13...
... and other broad figures of merit, such as gross weight, unit cost, initial production schedule, general flight performance parameters, force-structure mix, operational threat environment, and total program costs. At conceptual design time, the desired performance parameters (e.g., weight, size, fuel use)
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From page 14...
... and major Many sophisticated tools and methods are utilized during the preliminary design phase. Finite element models are employed for general sizing of structural members and computerized design synthesis methods are used throughout to establish the best structural arrangements and material selections for lowest weight.
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From page 15...
... Computers have been incorporated to perform highly detailed stress analyses of total structures, thereby greatly improving the weight efficiency of resulting design. Computer graphics methods have replaced manual drawing methods and have led to major improvements in accuracy of part definitions.
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From page 16...
... In the early design phases, where structural arrangement and internal equipment locations are determined, solid modeling methods will be used to produce highly accurate configuration definitions. Precise external surface geometry will be defined at design initiation.
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From page 17...
... Solid models of the hardware will also be applied to maintain progressive configuration control with complete data and change records. Individual subsystem elements will be readily interrogated in wide-screen color displays to automatically identify physical interferences or establish minimum clearances.
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From page 18...
... 18 REFERENCES Bradford, David.
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Key Terms

  • design process
  • detailed design
  • design phase
  • solid modeling
  • current design

  • design assessment
  • audit trails
  • design environment
  • external surface
  • program costs

  • computerized design
  • current environment
  • surface geometry
  • finite element
  • design team

  • design engineers
  • structural components
  • performance parameters
  • damage resistance
  • element models

  • production costs
  • flight performance
  • modeling software
  • final detailed
  • design data

  • bond graph
  • conceptual design
  • assessment tools
  • available tools
  • total program


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