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Recent Advances In Optimization Of Aerospace Structures And Engines

  • J. S. Rao*
Part of the Springer Proceedings in Physics book series (SPPHY, volume 126)

Optimization theories have been well advanced during the last few decades; however when it came to handle real life engineering structures it has been always time consuming and approximate when the structure geometry is highly complex. Design of Experiments has helped in understanding the influence of size and shape parameters on achieving a specified objective function with required constraints and a suitable analysis platform, but has its limitations in arriving at the final optimal solution. There are several commercial codes that addressed this need to handle large size structures subjected to dynamic loads. Most advanced tools in this category are Altair OptiStruct and Altair HyperStudy available in Altair HyperWorks suite. Application of these tools in achieving optimum solutions for linear advanced aircraft structures for minimization of weight are first explained. The application of these tools for globally elastic and locally plastic nonlinear structures to reduce local plastic strains and achieve higher life under dynamic loads will then be discussed.

Keyword

optimization locally plastic structures weight optimization plastic strain minimization topology optimization shape optimization 

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Copyright information

© Springer Science + Business Media B.V 2008

Authors and Affiliations

  • J. S. Rao*
    • 1
  1. 1.Chief Science Officer, Altair EngineeringBangaloreIndia

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