橡胶输送带黏弹性本构模型参数测定与分析  

Measurement and Analysis for the Constitutive Model Parameters of the Rubber Belt

作　　者：陈洪月[1,2] 李永红[1] 张坤[1] 邓文浩[3] 王鑫[1] 

机构地区：[1]辽宁工程技术大学机械工程学院,阜新123000 [2]矿山液压技术与装备国家工程研究中心,阜新123000 [3]宾夕法尼亚大学工程与应用科学学院,宾夕法尼亚19104

出　　处：《振动．测试与诊断》2018年第1期111-114,共4页Journal of Vibration,Measurement & Diagnosis

基　　金：国家自然科学基金资助项目(51404132)

摘　　要：通过动态加载应变试验,分析了钢丝绳芯橡胶输送带在0,10,20,30和40℃温度下的应力响应。以输送带的标准固体本构模型为基础,通过黏弹性材料的傅里叶级数拟合,推导了输送带标准固体模型中3个参数的识别公式,建立了3个参数随温度变化的拟合公式,并分析了其随温度的变化特性。结果表明:温度对黏度系数η1和弹性模量E_1影响较大,呈非线性变化趋势;对弹性模量E_2影响相对较小,可以近似为线性变化。最后,通过试验对建立的拟合公式误差进行了分析,最大误差约为3%,试验结果也证明了辨识公式的准确性。The stress responses of the rubber belt with steel rope core under 0°C,10℃,20℃,30℃ and 40℃ are analyzed by employing the dynamic loading stress experiment.Based on the constitutive model of the belt standard solid,the identification equations of the 3 parameters for the belt standard solid are derived by the Fourier series fitting method for the viscoelastic material,and the fitting equations with the temperature variation for the 3 parameters are established.The variation performance with temperature for the 3 parameters are analyzed,the results show that the temperature obviously influences the viscosity coefficient η1 and the elastic modulus E_1,and the trends are nonlinear,but the influence from the temperature to the elastic modulus E_2 is small and the trend is linear.Finally,the error analysis of the fitting equations is performed by the experiment,and the maximum error is about 3%.The experiment results prove the accuracy of the identification equations.

关 键 词：输送带 黏弹性 本构模型 参数识别 

分 类 号：TH113[机械工程—机械设计及理论] TD528[矿业工程—矿山机电]