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- W2382843685 abstract "To solve the large scale sound field problems with multi-domain and multi-absorbing materials,a substructure fast multipole boundary element approach was developed.In view of the fact that the arrangement order of an unknown column vector and the node number affected the speed of convergence,a principle was proposed to compose the whole matrix equation.Additionally,in light of the accuracy effect of multipole expansion computation caused by the complex acoustic parameters,some studies and corrections were conducted on the fast multipole boundary element method(FMBEM).As an example of application,the transmission loss of a dissipative expansion chamber silencer was calculated by using the substructure FMBEM and the conventional boundary element method(CBEM).The results indicate that the present approach and corrections are valid.Compared to the CBEM,the advantage of substructure FMBEM in computational efficiency was more obvious as the number of boundary nodes increased for a given frequency." @default.
- W2382843685 created "2016-06-24" @default.
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- W2382843685 date "2011-01-01" @default.
- W2382843685 modified "2023-09-23" @default.
- W2382843685 title "A fast multipole boundary element method for acoustic performance prediction of dissipative silencers" @default.
- W2382843685 hasPublicationYear "2011" @default.
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