摘要
在考虑温度变化的基础上,研究了圆形平面正交线性强化材料双层索网的非线性自振,采用Galerk in原理及L-P法求得了双层索网非线性自振的近似解及双层索网层间接触力的近似解。讨论分析了线性强化、温度、振幅等因素对双层索网非线性自振及双层索网层间接触力的影响,为双层索网盖的抗震设计提供了理论参考依据。
Considering change in temperature,the nonlinear vibration feature of an orthogonal two-layer cable net with linear hardening material in circular plane is studied,the approximate solutions to the two-layer cable net's nonlinear vibration and contact forces between layers are obtained with Galerkin principle and L-P method,the effects of linear hardening,temperature,amplitude and other factors on the nonlinear vibration and the contact forces between layers of the two-layer cable net are analyzed.
出处
《振动与冲击》
EI
CSCD
北大核心
2008年第6期147-150,177,共5页
Journal of Vibration and Shock
基金
湖南"十一五"重点建设学科项目资助
关键词
双层索网
线性强化
非线性
层间接触力
two-layer cable net
linear harden
nonlinear
contact force between layers
