钢丝绳橡胶输送带混合本构模型及动力学参数变化规律分析

发布时间：2018-05-15 02:20

本文选题：钢丝绳橡胶输送带 + Maxwell模型　；参考：《机械设计与研究》2017年03期

【摘要】：钢丝绳橡胶输送带是由钢丝绳芯和橡胶覆盖层组成的复合材料,其动力学参数的确定是研究带式输送机动态特性的关键问题,首先提出由钢丝绳广义Maxwell模型和橡胶基体三元件固体模型并联组合得钢丝绳芯橡胶输送带的混合本构模型,采用粘弹性理论建立动应变作用下混合本构模型方程,推导应力解析解,再采用反演变换法建立本构动力学参数的辨识模型,然后对不同位移、频率加载条件下钢丝绳、橡胶基体进行了动态加载实验与本构模型参数识别,并采用多项式对参数进行了拟合,揭示了不同加载条件下动力学参数的变化规律,最后通过实验对动力学参数拟合公式的准确性进行了验证。
[Abstract]:The rubber conveyor belt of steel wire rope is a composite material composed of wire rope core and rubber covering layer. The determination of its dynamic parameters is the key problem to study the dynamic characteristics of belt conveyor. In this paper, a hybrid constitutive model of rubber conveyor belt with steel wire rope, which is composed of generalized Maxwell model of wire rope and solid model of three elements of rubber matrix in parallel, is first proposed. The mixed constitutive model equation under dynamic strain is established by viscoelastic theory. The analytical solution of stress is derived, and then the identification model of constitutive dynamic parameters is established by inverse transformation method. Then the dynamic loading experiments and the identification of constitutive model parameters of wire rope and rubber matrix under different displacement and frequency loading conditions are carried out. The polynomial is used to fit the parameters, and the variation of dynamic parameters under different loading conditions is revealed. Finally, the accuracy of the fitting formula of dynamic parameters is verified by experiments.
【作者单位】：辽宁工程技术大学机械工程学院;辽宁工程技术大学国家地方联合矿山液压技术与装备工程研究中心;煤炭工业协会高端综采成套装备动力学测试与大数据分析中心;
【基金】：国家自然基金资助项目(51404132)
【分类号】：TH222

【相似文献】