基础位移激励下碳纤维矩形索网的非线性振动  

The nonlinear vibration of rectangular cable net using carbon fiber cables under foundation displacement excitation

作　　者：谢建军[1] 吴晓[1] 

机构地区：[1]湖南文理学院,湖南常德415000

出　　处：《四川建筑科学研究》2012年第6期172-175,共4页Sichuan Building Science

基　　金：湖南省教育厅科技研究计划项目(09C707)

摘　　要：研究碳纤维材料矩形单层索网在基础位移激励下的非线性振动问题,是索网抗震防震设计的基础。在考虑温度变化的基础上,建立了碳纤维矩形索网在基础位移激励下的非线性振动方程,采用Galerkin原理及KBM法求得了碳纤维材料矩形单层索网非线性振动的近似解。在把碳纤维索网与钢丝索网比较的基础上,讨论分析了温度、位移激励、振幅、阻尼等因素对矩形单层索网非线性振动的影响,得到了碳纤维索网振动特性优于钢丝索网振动特性的结论。It was studied that the nonlinear vibration of rectangular cable net using carbon fiber cables under foundation displacement excitation,and it is the base of earthquake prevention design of cable nct. Meanwhile its nonlinear vibration equation was presented on the basis of considering temperature changing. And the approximate solution of nonlinear vibration of rectangular cable mesh was given used Galerkin principle and KBM method. Then something that affects its nonlinear vibration, such as the amount of temperature changing ,foundation displacement excitation, amplitude as well as damping was discussed with the comparison between steel cable and carbon fiber cable. At last the conclusions was got that the vibration characteristics of cable net using carbon fiber cables is superior to cable net using steel.

关 键 词：基础 位移激励 碳纤维 索网 非线性振动 

分 类 号：O322[理学—一般力学与力学基础] TU358[理学—力学]