%0 Journal Article
%T MODAL ANALYSIS OF ELASTIC-VISCOELASTIC COMPOSITE STRUCTURES BASED ON ANSYS SECONDARY DEVELOPMENT<br>基于ANSYS二次开发进行黏弹性结构动力学分析
%A LIANG Tianxi
%A LIAO Wendong
%A CHEN Qianghong
%A CHEN Qian
%A <br>梁天锡
%A 廖文冬
%A 陈强洪
%A 陈前
%J 力学与实践
%D 2006
%I 
%X In recent years, elastic-viscoelastic composite structures are widely utilized in vibration reduction of engineering structure. But existing FE software packages are not designed to deal with the frequency-dependent mechanical properties of viscoelastic materials. Therefore, in this work new integral finite elements are developed and integrate into the ANSYS element bank, and an iteration algorithm is hooked up to the ANSYS. It is shown that this strategy is pragmatical and convenient. The model updating of the integral finite element based on the experimental modal parameters is also carried out.
%K viscoelastic damping
%K elastic-viscoelastic composite structures
%K passive vibration control
%K generalised complex eigenvalue problem
%K finite element model updating<br>黏弹性阻尼
%K 弹性-黏弹性复合结构
%K 振动被动控制
%K 广义复特征值问题
%K 有限元模型修正
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=5D344E2AD54D14F8&jid=0BF5C9FB031A532ED0A6D99DC4F6181A&aid=A771A6C6437A7E2A&yid=37904DC365DD7266&vid=D3E34374A0D77D7F&iid=E158A972A605785F&sid=2001E0D53B7B80EC&eid=94E7F66E6C42FA23&journal_id=1000-0879&journal_name=力学与实践&referenced_num=0&reference_num=5