HyperSizer Published Paper (12 pages)
"Design Optimization Using HyperSizer"
Presented at the 1998 MSC
Americas Users' Conference’, Universal City, CA, Oct 5-8, 1998
Abstract: This
paper identifies an existing commercial solution that MSC/NASTRAN users
can benefit from for automated stress analysis and sizing. The HyperSizer
software is mathematically coupled with NASTRAN FEA to provide an
integrated solution for quick and accurate design optimization. Though
specifically developed for the aerospace industry, the approach and
methods apply to any industry. A reusable launch vehicle referred to as
the AP2 space plane, which contains 7 assemblies, 21 optimization groups,
and 203 structural components is used as an example. NASTRAN is used as
the loads model and the entire plane is optimized using HyperSizer’s
analysis methods that range from closed form, traditional hand
calculations repeated every day in industry, to more advanced panel
buckling algorithms. Margin-of-safety reporting for every possible failure
provides the engineer with a powerful insight into the structural problem.
Run times on a Pentium PC workstation ranged from two to ten minutes for
the entire vehicle. The engineer is able to provide ‘real-world’
expertise in the optimization process by interacting with HyperSizer for
designs on the fly.
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