Comparison Between Two Solutions Based on the Relationship of Load-deflection Character of a Large Deflection Rubber Circular Plate

The rubber circular plate is considered as a kind of membrane. Based on the character that there exists no bending moment inside a membrane, the geometric behavior of the rubber circular plate in expanding state was described with the aid of a group of mathematic method. The relationship between deflection and load was attained by means of calculating stress and strain inside the curved surface of rubber plate. Meantime, based on Hencky method, the relationship between deflection and load was attained and considered as the Hencky solution. The different results given rise by the two different resolving methods were compared. The deviation results from the Hencky method was discussed, and a kind of correcting method was put forward.

大挠度储能橡胶圆板的受载挠曲特性分析

以圆板大挠度方程和伽辽金法为基础 ,推出边界不能径向移动的简支橡胶圆板挠曲与受载关系的二次近似分析解。此外 ,将橡胶板视为薄膜 ,根据薄膜的无矩特性 ,采用数学方法求得橡胶板的膨胀状态几何特性描述 ,进而通过应力应变求得挠曲与载荷的关系。

大挠度橡胶圆板的数值解及对其Hencky解的修正

将橡胶圆板视为薄膜 ,根据薄膜的无矩特性 ,巧妙采用数学方法求得橡胶圆板的膨胀状态几何特性描述 ,进而通过应力应变求得挠度与载荷的关系。同时 ,基于Hencky方法求得了挠度与载荷关系的Hencky解。对两种方法所得到的结果进行比较分析 。

球冠圆板式橡胶支座的性能评价

根据球冠圆板式橡胶支座的设计意图,针对坡梁偏压加载工况,采用通用有限元软件ANSYS对球冠圆板式橡胶支座和平面圆板式橡胶支座的典型代表试件建立FEA模型,进行了数值模拟,并对数值计算结果和试验结果进行了比较,验证了球冠圆板式橡胶支座良好的构件性能,以及利用有限元数值分析手段定性分析橡胶支座性能的可行性。

圆板式橡胶支座力学破坏机理仿真分析

圆板式橡胶支座作为连接桥梁上下部结构的主要构件,具有十分重要的作用,在使用过程中极易产生破坏,从而影响结构安全,因此研究圆板式橡胶支座的力学破坏机理具有重要的工程实践意义。该文采用MIDAS FEA有限元计算软件建立了圆板式橡胶支座力学计算模型,对橡胶支座的力学破坏机理进行了研究,分析了正常使用状态下(包括竖向荷载、剪切变形以及允许转角共同作用)、局部脱空状态下、剪切变形作用下以及老化开裂作用下等不同条件下橡胶支座的力学性能变化,以及脱空、老化等各项病害引起的力学行为变化对橡胶支座力学性能的影响程度,从而可以为圆板式橡胶支座中相关构件的设计以及材料的选取提供相关力学理论依据。