期刊文献+
共找到5篇文章
< 1 >
每页显示 20 50 100
Flexible high-rise apartments with sparse wall-frame structure:A data-driven computational approach
1
作者 Hao Hua Ludger Hovestadt Qian Wang 《Frontiers of Architectural Research》 CSCD 2024年第3期639-649,共11页
Flexible housing resolves the fundamental conflicts between the long-standing structure and the evolving demands.We propose a computational method of optimizing the structural layout of high-rise residential buildings... Flexible housing resolves the fundamental conflicts between the long-standing structure and the evolving demands.We propose a computational method of optimizing the structural layout of high-rise residential buildings.Chinese high-rise apartment buildings have widely employed shear wall-frame structure in which one big room or multiple small rooms could occupy the same span.Fitting multiple floor plans into a fixed sparse scheme of shear walls and columns is feasible.We developed a computational framework to seek flexible structural schemes.A building scheme consists of a circulation core,shear walls,columns,and boundaries.The computer program automatically adapts floor plans to any drawn or generated scheme.Based on a large dataset of apartment layouts,the number of apartments that fit into a building scheme statistically reflects the flexibility of the scheme.If many hypothetical plans can fit into a wallframe structure in computer simulation,this structure could probably support several generations of unknown plans.Such a data-driven computational method provides the possibility of creating a one-to-many mapping between permanent structure and evolving apartment plans. 展开更多
关键词 flexible housing high-rise apartment Data driven Computational design Wall-frame structure
原文传递
高层建筑横风向失稳振动机理的数值分析 被引量:1
2
作者 苏国 陈水福 唐锦春 《江南大学学报(自然科学版)》 CAS 2008年第2期227-233,共7页
基于计算流体力学的数值模拟方法,研究了矩形截面钝体高柔结构风致横风向失稳式振动(驰振).为反映结构运动对流动风场的影响,除建立固定不动的计算区域外,还建立了随结构运动的物理区域,在计算区域中修正了流动风场的控制方程,采用标准... 基于计算流体力学的数值模拟方法,研究了矩形截面钝体高柔结构风致横风向失稳式振动(驰振).为反映结构运动对流动风场的影响,除建立固定不动的计算区域外,还建立了随结构运动的物理区域,在计算区域中修正了流动风场的控制方程,采用标准SGS大涡模型,开发出WSSG建筑风场模拟程序,捕捉到结构在风场作用下的驰振现象,并从流场结构等方面分析了引发机理. 展开更多
关键词 建筑风场 数值模拟 大涡模型 钝体高柔结构 失稳振动 作用机理
下载PDF
Exact solution of free vibration of adjacent buildings interconnected by visco-elastic dampers 被引量:1
3
作者 Yong Chen Zuguang Ying Guohui Shen 《Theoretical & Applied Mechanics Letters》 CAS CSCD 2020年第2期132-140,共9页
With consideration of a high-rise coupled building system,a flexible beams-based analytical model is setup to characterize the dynamic behavior of the system.The general motion equation for the two beams interconnecte... With consideration of a high-rise coupled building system,a flexible beams-based analytical model is setup to characterize the dynamic behavior of the system.The general motion equation for the two beams interconnected by multiple viscous/visco-elastic dampers is rewritten into a non-dimensional form to identify the minimal set of parameters governing the dynamic characteristics.The corresponding exact solution suitable for arbitrary boundary conditions is presented.Furthermore,the methodology for computing the coefficients of the modal shape function is proposed.As an example,the explicit expression of the modal shape function is derived,provided only one damper is adopted to connect the adjacent buildings.Finally,to validate the proposed methodologies,three case studies are performed,in which the existence of the overdamping and the optimal damping coefficient are revealed.In the case of using one damper in connecting two similar buildings,the estimating equations for the first modal damping ratio are formulated. 展开更多
关键词 flexible high-rise coupled building system Non-dimensional motion EQUATION Free vibration EXACT complex mode SHAPE
下载PDF
软性多孔材料圆柱降噪特性实验研究
4
作者 武天皓 郭昊 +1 位作者 陈旭 刘沛清 《民用飞机设计与研究》 2022年第1期77-82,共6页
由钝体绕流产生的气动噪声可以通过在物体表面覆盖软性多孔材料得到降低。为了证实这种方法的有效性,在北京航空航天大学D5气动声学风洞中,对不同直径圆柱表面覆盖软性多孔材料,在不同风速范围下开展了气动声学测量实验,并利用恒温热线... 由钝体绕流产生的气动噪声可以通过在物体表面覆盖软性多孔材料得到降低。为了证实这种方法的有效性,在北京航空航天大学D5气动声学风洞中,对不同直径圆柱表面覆盖软性多孔材料,在不同风速范围下开展了气动声学测量实验,并利用恒温热线测速仪对其后缘尾迹流场进行了测量。结果显示,通过在圆柱表面覆盖软性材料,可以降低由圆柱产生的气动噪声,流场结果表明软性材料延长了圆柱后缘尾迹,抑制圆柱后缘涡脱落。 展开更多
关键词 钝体噪声 柔性材料 降噪
下载PDF
基于CBS方法和ANCF的钝体—柔性尾板流固耦合数值分析方法
5
作者 张橙 柯帅 +2 位作者 屈衍 滕云飞 程亮 《中国造船》 EI CSCD 北大核心 2024年第2期225-237,共13页
以刚性钝体—柔性尾板为研究对象,提出了准确考虑刚柔多体结构复杂运动与变形的流固耦合数值分析方法。基于任意拉格朗日-欧拉方法,采用特征基分裂的有限元方法求解流体控制方程;基于绝对节点坐标法精确模拟柔性尾板的复杂大变形特征;... 以刚性钝体—柔性尾板为研究对象,提出了准确考虑刚柔多体结构复杂运动与变形的流固耦合数值分析方法。基于任意拉格朗日-欧拉方法,采用特征基分裂的有限元方法求解流体控制方程;基于绝对节点坐标法精确模拟柔性尾板的复杂大变形特征;利用顺序流固耦合方法实现流体与结构的关联求解,同时利用径向基函数插值方法确保网格更新的质量。在固定方柱-柔性尾板和弹性支撑圆柱-柔性尾板算例中验证了数值模型的可靠性。将模型应用于弹性支撑圆角方柱-柔性尾板的流致振动二维数值模拟,探究流固耦合现象与规律。 展开更多
关键词 钝体-柔性尾板 流固耦合 数值模拟 特征基分裂 绝对节点坐标法
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部