Structural Topology Optimization Using Numerical Derivatives
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United States of America Patent
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Issued Date -
Mar 17, 2016
app pub date -
Sep 11, 2014
filing date -
Sep 11, 2014
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Abstract
Definition of a product's design domain along with design objective, at least one target design constraint, macro and field design variables are received in a computer system. Macro design variable is related to the product's design specification while field design variables control the material distribution within the design domain. Candidate design, represented by corresponding FEA model, based on the design domain is established. At least one variation of the candidate design is created by varying macro design variable. Corresponding design constraint of the candidate design and at least one variation are computed via FEA. Trend of the computed design constraints with respect to macro design variable is determined by multi-dimensional data fitting. Macro variables are updated according to the trend. New candidate design is created by computing field design variables using FEA results from the previous candidate design and design specifications including updated values of the macro design variables.
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