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本帖最后由 Mings 于 2012-2-16 18:11 编辑
, M4 N4 T/ w6 Wyuxuan51 发表于 2012-2-15 11:56
% G4 M0 a V: ^; OKMOR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 ... ! c4 B* q* z4 P
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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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Summary of KMOR Algorithm
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$ a5 C7 l0 g! n5 ]( g8 B1 F$ H5 mSolutions in the frequency domain can be expressed as a linear combination of all eigen modes
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% l' @2 o$ O8 @2 _Contributions of eigen modes with resonance frequencies much higher than the maximum frequency are negligible,only need low frequqncy modes! i8 l2 {7 Y, b; Y/ |
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KMOR adds eigen modes from low frequencies until solution convergence
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5 c+ {5 a7 }/ l9 g, K; A* f. U( W) JKMOR is one order of magnitude faster than the commonly used interpolating frequency sweep" O8 u. G7 j2 i, l' {! j: t8 i
5 q8 {2 y/ V; l, K. [* uUnlike the curve fitting based interpolating sweep, the physics based KMOR does not generate false resonances nor miss real resonances0 P% ^( E# k" X. B
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3DFEM目前支持的port为lump port |
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