CAJ | 학술논문

封隔器超弹性胶筒所用的天然硫化橡胶添加了填充物，单纯利用理论研究无法选择合适的应变能函数模型。通过对填料填充橡胶材料进行单轴拉伸试验，拟合得到 Mooney-Rivlin 模型和 Yeoh 模型材料参数，并结合实验数据确定填料填充橡胶材料的应变能函数模型；采用 ANSYS 软件分析2种不同弹性模量的橡胶封隔器的坐封效果。结果表明，对于填料填充天然硫化橡胶材料，Yeoh 模型拟合效果更好；在相同载荷作用下，弹性模量小的填料填充橡胶材料变形量更大，胶筒最大 Von Mises 应力较小且最大接触应力较大，更适合用作封隔器的中胶筒。
봉격기초탄성효통소용적천연류화상효첨가료전충물，단순이용이론연구무법선택합괄적응변능함수모형。통과대전료전충상효재료진행단축랍신시험，의합득도 Mooney-Rivlin 모형화 Yeoh 모형재료삼수，병결합실험수거학정전료전충상효재료적응변능함수모형；채용 ANSYS 연건분석2충불동탄성모량적상효봉격기적좌봉효과。결과표명，대우전료전충천연류화상효재료，Yeoh 모형의합효과경호；재상동재하작용하，탄성모량소적전료전충상효재료변형량경대，효통최대 Von Mises 응력교소차최대접촉응력교대，경괄합용작봉격기적중효통。
The strain energy function can not be chosen appropriately only by theory for the hyper-elastic packer rubber with filler.The uniaxial tensile test was carried out for the rubber with filler,the material parameters of Mooney-Rivlin and Yeoh model were obtained through curve fitting,and the strain energy function of the rubber with filler was obtained com-bining the experimental data.The packers setting effect of the rubber with different elasticity modulus was analyzed by AN-SYS software.The results show that for the vulcanized natural rubber with filler,the Yeoh models calculation accuracy is higher than the Mooney-Rivlin model.Under the same load,the rubber with small elasticity modulus has bigger deforma-tion,smaller maximum Von Mises stress and larger maximum contact pressure,which is more suitable as the middle rub-ber of the packer.