Abstract:The dual Craig-Bampton method (DCBM) employs modes with free interfaces to build the reduction bases of the substructures, but assembles the substructures using interface forces, which is called dual assembly. The DCBM preserves the sparsity of the final reduced mass and stiffness matrices similar to the classical Craig-Bampton reduced matrices, which makes the reduced matrices simpler and less populated than the reduced matrices of other free interface methods. However, the DCBM is not a Rayleigh-Ritz transfo… Show more
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