Experimental investigations and material modeling of an elastomer jaw coupling

IF 2.4 4区材料科学 Q2 MATERIALS SCIENCE, CHARACTERIZATION & TESTING Materials Testing Pub Date : 2024-07-17 DOI:10.1515/mt-2024-0028

Arthur Ewert, Johannes D. M. Menning, Artem Prokopchuk, T. Rosenlöcher, E.-F. Markus Vorrath, Thomas Wallmersperger, Berthold Schlecht

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Abstract

This work investigates the hyper-viscoelastic behavior of a thermoplastic polyurethane IROGRAN A 92 E 5670 FCM used in the gear rim of a jaw coupling. The aim is to provide the material parameters for the modeling of jaw couplings in engineering tasks. Uniaxial compression tests were conducted at various temperatures and loading speeds to fit a hyper-viscoelastic material model. The material model uses the Yeoh free energy and the power law model with one Maxwell element. The parametrized material model showed very good results in comparison to experimental data. In addition, the influence of friction on the experiments was modeled, investigated, and discussed. Further component tests for a jaw coupling of size 28 were conducted with two different specimen types. The original gear rim and a modified gear rim with central boreholes for integrated sensors were used in the test. The influence of such a modification was investigated with four different loading cases, focusing on the torsion-torque characteristic and the relative damping. These component tests enable the validation of numerical models of jaw couplings.

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弹性颚式联轴器的实验研究和材料建模

这项工作研究了用于颚式联轴器齿圈的热塑性聚氨酯 IROGRAN A 92 E 5670 FCM 的超粘弹性行为。目的是为工程任务中的爪式联轴器建模提供材料参数。在不同温度和加载速度下进行了单轴压缩试验，以拟合超粘弹性材料模型。该材料模型采用了杨氏自由能和幂律模型，并带有一个麦克斯韦元素。与实验数据相比，参数化的材料模型显示出非常好的结果。此外，还对摩擦对实验的影响进行了建模、研究和讨论。使用两种不同类型的试样对尺寸为 28 的颚式联轴器进行了进一步的组件测试。试验中使用了原始的齿轮轮缘和改进的齿轮轮缘，齿轮轮缘中央有用于集成传感器的孔。通过四种不同的加载情况研究了这种改进的影响，重点是扭转扭矩特性和相对阻尼。通过这些组件测试，可以验证颚式联轴器的数值模型。

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来源期刊

Materials Testing 工程技术-材料科学：表征与测试

CiteScore

4.20

自引率

36.00%

发文量

165

审稿时长

4-8 weeks

期刊介绍： Materials Testing is a SCI-listed English language journal dealing with all aspects of material and component testing with a special focus on transfer between laboratory research into industrial application. The journal provides first-hand information on non-destructive, destructive, optical, physical and chemical test procedures. It contains exclusive articles which are peer-reviewed applying respectively high international quality criterions.