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本帖最后由 Mings 于 2012-2-16 18:11 编辑 4 {- J G7 R4 ]5 `" t
yuxuan51 发表于 2012-2-15 11:56
C) A9 I/ [: U+ _% j2 }6 n$ a ]KMOR求解矩阵算法是sigrity自创的么?怎么网上找不到它的介绍。按理说这种求解矩阵的解的方法不一样,达到 ...
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KMOR是Krylov Model Order Reduction的简称,下面是一个简单的介绍。
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7 q6 K, z/ \- e3 zSummary of KMOR Algorithm
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. o _* s' Y @5 ~Solutions in the frequency domain can be expressed as a linear combination of all eigen modes. a( r: g \# `; X. O/ [3 P
; g1 L5 }- b1 M) c; rContributions of eigen modes with resonance frequencies much higher than the maximum frequency are negligible,only need low frequqncy modes
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KMOR adds eigen modes from low frequencies until solution convergence) C7 o, N( t t' a' `+ t) |) J% J
& `9 F2 ^9 l4 E# b T# nKMOR is one order of magnitude faster than the commonly used interpolating frequency sweep8 s. @1 m) `& U* F+ p
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Unlike the curve fitting based interpolating sweep, the physics based KMOR does not generate false resonances nor miss real resonances
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3DFEM目前支持的port为lump port |
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