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辐射式张弦桁架结构的自振特性分析
Analysis of free vibration characteristics of radiate string truss structure
【摘要】 利用ANSYS软件中的子空间迭代法,分析了辐射式张弦桁架结构的自振特性,针对不同的参数,如辐射桁架臂数、矢跨比、垂跨比、撑杆数目、环向索数目、径向索预应力度和环向索预应力度等进行了大量参数分析,得出了各参数对辐射式张弦桁架结构的自振特性的影响及该结构的自振规律。
【Abstract】 The free vibration characteristics of radiate string truss structure were analyzed systematically with subspace iteration method of software ANSYS.Though a large amount of the different parameters,such as the number of radiate truss,rise-span radio,sag-span radio,number of struts,number of round lateral string,prestress of radiate string,prestress of round string,etc.the influence of several parameters on the free vibration characteristics of radiate string truss structure as well as the pattern of free vibration were obtained.
【关键词】 辐射式张弦桁架;
模态分析;
自振频率;
自振特性分析;
【Key words】 radiate string truss structure; modal analysis; free vibration frequency; free vibration characteristics;
【Key words】 radiate string truss structure; modal analysis; free vibration frequency; free vibration characteristics;
- 【文献出处】 四川建筑科学研究 ,Sichuan Building Science , 编辑部邮箱 ,2009年01期
- 【分类号】TU323.4
- 【被引频次】1
- 【下载频次】93