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HyperSizer
HyperSizer is computer-aided engineering (CAE) software used for stress analysis and sizing optimization of metallic and composite structures. Originally developed at the US National Aeronautics and Space Administration (NASA) as ST-SIZE, it was licensed for commercial use by Collier Research Corporation in 1996. Additional proprietary code was added and the software was marketed under the name HyperSizer.
==History==
HyperSizer developed from the NASA Langley Research Center (LaRC) ST-SIZE research code. ST-SIZE was originally developed because NASA identified a need for accurate methods of formulating panel stiffness and thermal expansion coefficients, leading to the development of ST-SIZE from 1988 to 1995. Another need was the reduction of mass on high-speed aircraft and weight reduction for optimization. ST-SIZE was developed by a team of engineers working on the National Aerospace Plane X-30. Two major versions of ST-SIZE were created. The original version included formulations for stiffness terms and thermal expansion coefficients based on approximations often taken in traditional design methods. In 1990, a version of ST-SIZE was formed for structural design and weight prediction. A new method for formulation of stiffened panel properties was developed starting in 1991. A method for including composite lamina and laminate data in the formulation of stiffened panel structural properties was first developed. Thermal coefficients were created to handle both in-plane and through-the-thickness temperature gradients for membrane, bending, and membrane-bending coupling. A method was then developed to enter these thermal expansion and bending coefficients into the MSC Software version of Nastran for finite element analysis (FEA) using a model with a single plane of finite elements. Other solvers are supported such as I-DEAS.
In May 1996, Collier Research Corporation was formed in Hampton, Virginia from the original ST-SIZE design team, which included Craig S. Collier. Collier Research obtained an exclusive, all-fields-of-use license, and became the first company to license NASA software for commercial use.〔 They combined the NASA LaRC ST-SIZE copyright research code with other company proprietary software; the combined software became HyperSizer.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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