| 碳纤维材料正交索网非线性固有振动研究 |
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| 引用本文： | 杨立军,吴晓.碳纤维材料正交索网非线性固有振动研究[J].合肥工业大学学报(自然科学版),2010,33(4). |
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| 作者姓名： | 杨立军 吴晓 |
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| 作者单位： | 湖南文理学院土木建筑工程学院,湖南,常德,415000 |
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| 基金项目： | 湖南省科技计划项目，湖南"十一五"重点建设学科资助项目，湖南省普通高校青年骨十教师资助项目 |
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| 摘 要： | 文章研究了碳纤维材料正交索网的非线性固有振动;在考虑温度变化的基础上,建立了碳纤维材料正交索网几何变形的非线性振动控制方程,采用Galerkin原理及改进的L-P法求出了碳纤维材料正交索网非线性振动的近似解,并讨论分析了温度的改变量、振幅对碳纤维材料正交索网非线性固有振动的影响,得到的结论是:温度升高将使正交索网非线性自振频率降低,而振幅变大会使正交索网非线性自振频率增大。
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| 关 键 词： | 碳纤维材料 正交索网 非线性 固有振动 |
Study on the nonlinear natural vibration of orthogonal cable net using carbon fiber cables |
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| YANG Li-jun,WU Xiao.Study on the nonlinear natural vibration of orthogonal cable net using carbon fiber cables[J].Journal of Hefei University of Technology(Natural Science),2010,33(4). |
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| Authors: | YANG Li-jun WU Xiao |
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| Abstract: | The nonlinear natural vibration of orthogonal cable net using carbon fiber cables is studied in this paper.Meanwhile the nonlinear vibration governing equation of its geometric deformation is presented considering the temperature change.And the approximate solution of nonlinear vibration of orthogonal cable net is given using Galerkin principle and improved L-P method.Then factors affecting its nonlinear natural vibration,such as the amount of temperature change and amplitude,are discussed.At last conclusions are given that the temperature increment will make the nonlinear vibration frequency of orthogonal cable net decrease,but amplitude increment will make the nonlinear vibration frequency increase. |
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| Keywords: | carbon fiber cables orthogonal cable net nonlinearity natural vibration |
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