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强士中, 李小珍, 蔡婧
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-1年11月30日
运用桥梁结构动力学与车辆动力学的研究方法,将车桥作为联合动力体系,建立了高速列车与大跨度斜拉桥的车桥耦合动力分析模型。以京沪高速铁路南京长江大桥3塔斜拉桥方案为例,分析了大跨度斜拉桥在ICE高速列车作用下的车桥动力响应特点;同时,基于合理的列车走行性评价指标,对高速列车通过大跨度斜拉桥时的走行安全性与舒适性进行了详细分析,初步探讨了大跨度斜拉桥用于高速铁路的可行性。
京沪高速铁路, 南京长江大桥, 车桥耦合振动, 走行安全性, 乘坐舒适性
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强士中, 李小珍
,-0001,():
-1年11月30日
就车桥耦合振动的研究思路、车辆分析模型、桥梁分析模型、轮轨接触关系、激励源、数值计算方法6个方面,系统综述了20世纪60年代以来列车~桥梁耦合振动研究的现状与进展,总结在上述6个方面已取得的一些研究成果和结论,同时,指出目前研究工作中存在的尚待进一步完善的问题,提出了今后的研究方向。
车桥耦合振动,, 车辆模型,, 桥梁模型,, 轮轨接触关系,, 激励源
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【期刊论文】INFLUENCE OF RESIDUAL STRESSES AND DEFORMATION ON BUCKLING BEHAVIOUR OF PLATES
强士中, Delan Yin, Shizhong Qiang
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-1年11月30日
3In this paper, multi-layer/DR combination method is used to study the buckling behaviour of plates, giving a detailed discussion for the influence of the parameters, such as loading and boundary conditions of the plate, the slenderness of the plate, the mode of the residual eformation and the distribution of the residual stresses.
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【期刊论文】ULTIMATE STRENGTH OF SQUARE PLATES WITH INITIAL IMPERFECTIONS UNDER IN-PLANE LOADING
强士中, Qian Dongsheng and Qiang Shizhong
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-1年11月30日
the present paper outlines the large deflection elasto-plastic analytical results for thin square plates with initial imperfections subjected to in-plane loads. The elasto-plastic rigidities are calculated using a rigorous multi-layer approach. The governing equations are solved in an incremental form by applying dynamic relaxation method (DRM) as proposed by the author M, 21. based on the computational results, the paper discusses the plastici zation history of the panels.
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【期刊论文】AN ADAPTIVE DYNAMIC RELAXATION METHOD FOR NONLINEAR PROBLEMS
强士中, Shizhong Qiang
,-0001,():
-1年11月30日
The present paper very briefly outlines the so-called Dynamic Relaxation Method (DRM)which is found to be suitable in analysis of both geometrical and material nonlinearities using personal computers, and discuss an approach recently at SWJT for the automatic selection of interaction parameters in the DRM. The solution of a nonlinear truss-spring, the analysis of plate bending problems with large deflections under transverse loading, and the calculation of the ultimate load of plates under an in-plane load, using DRM with personal computers, are described.
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