Modeling of a constant Q: Methodology and algorithm for an efficient and optimally inexpensive viscoelastic technique
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Linear anelastic phenomena in wave propagation problems can be well modeled through a viscoelastic mechanical model consisting of standard linear solids. In this paper we present a method for modeling of constant Q as a function of frequency based on an explicit closed formula for calculation of the parameter fields. Several standard linear solids connected in parallel can be tuned through a single parameter to yield an excellent constant Q approximation. The proposed method enables substantial savings in computations and memory requirements. Experiments show that the new method also yields higher accuracy in the modeling of Q than, e.g., the Padé approximant method.
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1985 ◽
Vol 18
(17)
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pp. 3297-3318
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1984 ◽
Vol 17
(9)
◽
pp. 1877-1890
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1984 ◽
Vol 17
(9)
◽
pp. 1891-1901
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Keyword(s):
1961 ◽
Vol 2
(3)
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pp. 405-418
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