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- W2022271440 abstract "There has been recent interest in multidisciplinary multilevel optimization applied to large engineering systems. The usual approach is to divide the system into a hierarchy of subsystems with ever increasing detail in the analysis focus. Equality constraints are usually placed on various design quantities at every successive level to ensure consistency between levels. In many previous applications these equality constraints were eliminated by reducing the number of design variables. In complex systems this may not be possible and these equality constraints may have to be retained in the optimization process. In this paper the impact of such a retention is examined for a simple portal frame problem. It is shown that the equality constraints introduce numerical difficulties, and that the numerical solution becomes very sensitive to optimization parameters for a wide range of optimization algorithms." @default.
- W2022271440 created "2016-06-24" @default.
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- W2022271440 date "1986-05-19" @default.
- W2022271440 modified "2023-09-23" @default.
- W2022271440 title "Numerical difficulties associated with using equality constraints toachieve multi-level decomposition in structural optimization" @default.
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- W2022271440 doi "https://doi.org/10.2514/6.1986-854" @default.
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