钢丝绳芯橡胶输送带本构模型参数辨识与变化规律分析

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振动与冲击 ›› 2017, Vol. 36 ›› Issue (14) : 234-238.

论文

陈洪月1,2,3 ，张坤1，李恩东1

作者信息 +

Parameter identification and variation law analysis of constitutive model of wire rope rubber conveyor belts

CHEN Hong-yue1, 2, ZHANG Kun1,LI EN-dong 1

Author information +

文章历史 +

摘要

橡胶输送带模型参数辨识是研究大型带式输送机动态特性的关键问题。首先采用粘弹性动力学理论和傅里叶级数拟合方法推导并建立了橡胶输送带标准固体模型的参数辨识方程，并通过实验对辨识方程进行了验证；然后对不同加载条件下实验数据的辨识结果进行了二次多项式拟合，分别获得了加载位移幅值、频率对输送带本构模型参数的影响规律，结果表明：随着加载幅值的增大，粘性系数具有先减小后增大的变化规律，弹性模量E1小幅度增大、E2大幅度增大趋势，随着加载频率的增大，粘性系数、弹性模量E1、E2均逐渐减小；最后，通过实验对拟合公式的准确度进行了验证。

Abstract

Parameter identification of the rubber conveyor belt model is the key problem in researching the large belt conveyor dynamic characteristics. Firstly, the parameter identification equation of the standard solid model for the rubber conveyor belt is derived and established by employing the viscoelastic dynamics theory and the Fourier series fitting method, and the identification equation is validated by the experiment. Secondly, the quadratic polynomial fitting is performed for the identification result of the experimental data under the different load conditions, the load displacement amplitude and the influence laws of the frequency to the constructive model parameters of the conveyor belt are obtained. The results show that with the increasement of the load amplitude, the variation law of the viscosity coefficient is that the viscosity coefficient first decreases and then increases, the variation law of the parameter E1 is that E1 increases by a small amplitude, the variation law of E2 is that E2 increases by a large amplitude quickly, with the increasement of the load frequency, the viscosity coefficient, the elastic modulus E1 and E2 decrease gradually. The accuracy of the fitting equations is validated by the experiment.

导出引用

陈洪月1,2,3,张坤1，李恩东1. 钢丝绳芯橡胶输送带本构模型参数辨识与变化规律分析[J]. 振动与冲击, 2017, 36(14): 234-238

CHEN Hong-yue1, 2, ZHANG Kun1,LI EN-dong 1. Parameter identification and variation law analysis of constitutive model of wire rope rubber conveyor belts[J]. Journal of Vibration and Shock, 2017, 36(14): 234-238

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