Bingxiao Du1, Yong Zhao1, *, Wen Yao2, Xuan Wang3, Senlin Huo1
CMES-Computer Modeling in Engineering & Sciences, Vol.122, No.3, pp. 1119-1140, 2020, DOI:10.32604/cmes.2020.08859
Abstract A general and new explicit isogeometric topology optimisation approach with
moving morphable voids (MMV) is proposed. In this approach, a novel multiresolution
scheme with two distinct discretisation levels is developed to obtain high-resolution
designs with a relatively low computational cost. Ersatz material model based on Greville
abscissae collocation scheme is utilised to represent both the Young’s modulus of the
material and the density field. Two benchmark examples are tested to illustrate the
effectiveness of the proposed method. Numerical results show that high-resolution
designs can be obtained with relatively low computational cost, and the optimisation can
be significantly improved without introducing… More >
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