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ZN—1型粘彈性材料的GHM模型參數(shù)確定
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TB535 TB115

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National Defence Science Key L aboratory Foundation(JS5 2 .4 .3)


Parametric Determination for GHM of ZN-1 Viscoelastic Material
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    摘要:

    將ZN－1粘彈性材料的GHM模型與工程上常用的有限元方法相結(jié)合，引入耗散自由度，將由于ZN－1型粘彈性材料導(dǎo)致的非線性微分方程轉(zhuǎn)化為一般的二階定常線性系統(tǒng)模型，并將GHM模型與最常用的標(biāo)準(zhǔn)線性模型，分?jǐn)?shù)導(dǎo)數(shù)模型進行比較，結(jié)果表明本研究提出的確定GHM模型參數(shù)的方法是正確的。

    Abstract:

    The GHM(Golla Hughes McTavish) model of ZN 1 Viscoelastic Material is combined with finite element method (FEM), which is the most frequently used method in Engineering. It can approach time consuming iteration in solving model parameters and responses by introducing dissipation coordinates . The parameters of GHM model are determined by nonlinear curve fitting in complex frequency domain. This is converted into nonlinear optimization problem with constrained condition. The results show that the method proposed in the present paper to determine the parameters of GHM model is correct, simple and effective to employ GHM model to perform dynamic analysis.

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張亮 杜海平 等. ZN—1型粘彈性材料的GHM模型參數(shù)確定[J].稀有金屬材料與工程,2002,(2):92~95.[Zhang Liang, Du Haiping, Shi Yinming, Shi Xizhi. Parametric Determination for GHM of ZN-1 Viscoelastic Material[J]. Rare Metal Materials and Engineering,2002,(2):92~95.]
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