In this paper , through the self oscillation analysis and the earthquake response analysis , the frequency , the oscillation mode , the transverse and vertical earthquake response of the different cable form projects and the relevant single - layer spherical latticed shell were compared , the effect of different cable form projects to the structural dynamical stability was obtained 本文对选定的三个布索方案进行了自振特性分析和地震响应分析,比较了各方案的频率、振型以及横向和竖向地震反应,并和相应单层球面网壳进行了对比,得到了布索圈数对结构动力性能的影响。
In the paper , present condition and developing tendency of forklifts are presented , design plans of a new developed electrical - driven universal - way forklifts - cpd2hc ~ are introduced , dimensions of its changing direction trapezoid are designed by means of optimized method , static and dynamical stabilities of the forklifts are studied and tested through build model , given conclusions from above researches are of great important to raise design quality and working performance of this kind of forklifts , which lay the foundations of developing more practical , durable and advanced productions 论文阐述了叉车的现状和发展趋势,介绍了新研制的cpd2hc型电动万向叉车的设计方案,并利用优化的方法对转向梯形臂的几何尺寸进行了优化设计,论文还研究和验证了电动万向叉车的静态稳定性和动态稳定性,所得结论对于提高这种型式叉车的设计质量和工作性能有重要的意义,为研制更实用、更耐用、性能更先进的产品奠定了基础。
In this paper , the suspen - dome structure of the gymnasium for olympic badminton game in 2008 was used for example . three projects of different cable form was analyzed the static stability , overall stability and dynamical stability . in this paper , the basis of setting prestress for large span suspend - dome was discussed first 本文以我校奥运羽毛球比赛馆的弦支穹顶屋盖结构(跨度93米)为工程应用对象,采用大型通用有限元分析软件ansys ,选择不同的布索方案进行了静力、整体稳定和动力性能分析。