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| 基于ANSYS二次开发进行黏弹性结构动力学分析 | |
| 引用本文： | 梁天锡,廖文冬,陈强洪,陈前.基于ANSYS二次开发进行黏弹性结构动力学分析[J].力学与实践,2006,28(4):41-45. |
| 作者姓名： | 梁天锡 廖文冬 陈强洪 陈前 |
| 作者单位： | 1. 西安交通大学,西安,710049 2. 南京航空航天大学,南京,210016 3. 中国物理工程研究院,绵阳,621900 |
| 摘 要： | 弹性-黏弹性复合结构目前在结构减振方面应用很广泛,但是现有的有限元分析软件系统尚不能有效地计算这种复合结构．因此对ANSYS进行二次开发,利用ANSYS进行前处理与建模,再利用外挂程序进行模态计算,最后将结果返回ANSYS进行后处理．将理论计算结果与实验结果进行比较,说明这种方法是可行的,计算精度满足要求．在此基础上,还对一体化有限元模型进行了修正,也取得了令人满意的结果． |
| 关 键 词： | 黏弹性阻尼 弹性-黏弹性复合结构 振动被动控制 广义复特征值问题 有限元模型修正 |
| 收稿时间： | 2005-06-17 |
| 修稿时间： | 2005-12-09 |
MODAL ANALYSIS OF ELASTIC-VISCOELASTIC COMPOSITE STRUCTURES BASED ON ANSYS SECONDARY DEVELOPMENT |
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| LIANG Tianxi,LIAO Wendong,CHEN Qianghong,CHEN Qian.MODAL ANALYSIS OF ELASTIC-VISCOELASTIC COMPOSITE STRUCTURES BASED ON ANSYS SECONDARY DEVELOPMENT[J].Mechanics and Engineering,2006,28(4):41-45. | |
| Authors: | LIANG Tianxi LIAO Wendong CHEN Qianghong CHEN Qian |
| Abstract: | 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. |
| Keywords: | viscoelastic damping elastic-viscoelastic composite structures passive vibration control generalised complex eigenvalue problem finite element model updating |
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