Lightweight steel portal frame and its optimum web height 轻型门式刚架结构及其最优腹板高度的研究
New method of discrete topology optimization of rigid frame 离散变量刚架结构拓扑优化设计的一种新方法
Incremental endochronic constitutive relations for granular materials with random parameteres 刚架结构物理参数的随机性对其非平稳随机响应的影响
The conclusion has application value not only for quantitative calculation but also for qualitative analysis of frame structures 讨论结果对刚架结构无论是定量计算还是定性分析,都具有实际应用价值。
3 . the dynamic characteristics of stochastic truss structures and stochastic frame structures are analyzed by using random factor method 3 、利用随机因子法对随机桁架和随机刚架结构的动力特性进行了分析。
In light - steel portal frame design , end - plate connection is presumed to be complete stiffness connection , and that ' s not the case 在轻型门式刚架结构设计中,通常将端板连接作为完全刚性连接,而事实并非如此。
The genetic operator is improved and used to the optimization of a frame structure . a comparison is made with other optimal algorithms 改进了遗传算子,编制了相应的计算程序,将遗传算法应用于刚架结构的优化,并与其他的优化方法作了比较。
The tapered beam element is used hi the fem . with the fem . the linear static and in - plane stability analysis of the frames are carried out conveniently 本文开发了一套变截面梁单元有限元分析程序,可对变截面门式刚架结构体系进行精确的静力计算与平面内稳定性分析。
Due to their structural economy , tapered members are more and more widely used in portal frames . however , the stress distribution and in - plane inelastic stability of tapered members are not yet fully documented 本文对门式刚架结构中常用到的楔形变截面构件进行了应力分析与弹塑性稳定的研究。
Spacial frame is a shape used commonly in engineering . its structure mechanics performance can be improved greatly and its weight can be lightened by use of shape optimization too 空间刚架结构是工程上常用的结构形式,根据刚架结构的构建特点进行形状优化可以极大地改善结构的力学性能,减轻其结构重量。