基于Ogden公式的充压伸缩式水封非线性计算研究  

NONLINEAR CALCULATION ON THE PRESSURE-FILLED TELESCOPIC WATER SEAL BASED ON THE OGDEN FORMULA

作　　者：刘礼华[1] 王蒂[1] 欧珠光[1] 魏晓斌[1] 

机构地区：[1]武汉大学土木建筑工程学院,武汉430072

出　　处：《固体力学学报》2011年第1期102-107,共6页Chinese Journal of Solid Mechanics

基　　金：国家自然科学基金资助项目(50679059)资助

摘　　要：考虑橡胶类止水材料性能对水封设计的重要作用,论文采用Mooney-Rivlin公式和Ogden公式对橡胶类止水材料的单向拉伸、单轴压缩和纯剪实验数据进行曲线拟合与研究.结合工程实例将该两种公式的拟合参数应用于充压伸缩式水封自由外伸量的非线性有限元计算中,并将计算结果与该水封自由外伸量模型实验进行对比研究.结果表明:Ogden公式比Mooney-Rivlin公式能更好地反映橡胶类止水材料的性能,在闸门水封设计中应用Ogden公式能更有效地提高其非线性有限元计算的精度,这为闸门水封结构的设计计算提供了有益的参考依据.Considering the importance of the mechanical properties for the rubber-like material on the water-seal design, Mooney-Rivlin formula and the Ogden formula have been applied in the processing experimental data of uniaxial tension test, uniaxial compression test and pure shear test. The nonlinear calculation for the free extension of pressure-filled telescopic water seal has been done by using the fitting parameters from the both formulas. Then the comparative study between the calculated results and test results has been carried. The results show that the Ogden formula is better than Mooney-Rivlin formula on describing the mechanics properties of rubber-like material. It is more precise to use the Ogden formula in nonlinear finite element calculation, which provides a good reference for the design and calculation of gate water seal structure.

关 键 词：充压伸缩式水封 橡胶类止水材料 非线性有限元 Ogden公式 

分 类 号：TB42[一般工业技术]