KSME International Journal

, Volume 18, Issue 5, pp 814–819

Adaptive parallel decomposition for multidisciplinary design

  • Hyung-Wook Park
  • Se J. Lee
  • Hyun-Seop Lee
  • Dong-Hoon Choi
Article

Abstract

The conceptual design of a rotorcraft system involves many different analysis disciplines. The decomposition of such a system into several subsystems can make analysis and design more efficient in terms of the total computation time. Adaptive parallel decomposition makes the structure of the overall design problem suitable to apply the multidisciplinary design optimization methodologies and it can exploit parallel computing. This study proposes a decomposition method which adaptively determines the number and sequence of analyses in each sub-problem corresponding to the available number of processors in parallel. A rotorcraft design problem is solved and as a result, the adaptive parallel decomposition method shows better performance than other previous methods for the selected design problem.

Key Words

Parallel Decomposition Scheduling Rotorcraft Design Multidisciplinary Design Optimization (MDO) 

Nomenclature

N

The number of sub-problems

Nt

The total number of analyses

pi

Thei-th analysis module

pik

The z’-th analysis ink-th sub-problem

nk

The number of analyses ink-th sub-problem

U, CL

The amount of information transferred between sub-problems in upper and lower triangular regions

bk

The sum of feedback couplings of thek-th sub-problem

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Copyright information

© The Korean Society of Mechanical Engineers (KSME) 2004

Authors and Affiliations

  • Hyung-Wook Park
    • 1
  • Se J. Lee
    • 2
  • Hyun-Seop Lee
    • 3
  • Dong-Hoon Choi
    • 4
  1. 1.R & D Division for Hyundai Motor CompanyKynnggi-DoKorea
  2. 2.Department of Mechanical EngineeringThe University of SeoulSeoulKorea
  3. 3.Research Assistant, the Center of Innovative Design Optimtation TechnologyHanyang UniversitySeoulKorea
  4. 4.Center of Innovative Design Optimtation TechnologyHanyang UniversitySeoulKorea

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