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Lifecycle Evaluation of Base-Isolated Rubber Bearings Considering Environmental Deterioration

机译:考虑环境恶化的基础绝缘橡胶轴承的生命周期评估

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摘要

The heat acceleration deterioration test was carried out so that the heat deterioration characteristics of NR and HDR were investigated. In this test, time, temperature and the "depth" dependency of the heat deterioration were evaluated. As the results of the test, there were different deterioration characteristics between NR and HDR. At the beginning of the deterioration, M25 of HDR increased to almost 20% on surface, but one of NR rarely changed. After the long-term deterioration, material properties of NR changed larger than those of HDR. Moreover, material properties of NR distributed along to the depth more straightly than those of HDR. The reason for this tendency is that the compound included in HDR has a role of burrier which protects the material from the heat. It was thought that HDR is more available for long-term usage than NR.
机译:进行了热加速劣化试验,从而研究了NR和HDR的热劣化特性。在该测试中,评估了时间,温度和热劣化的“深度”依赖性。作为测试结果,NR和HDR之间具有不同的劣化特性。在劣化开始时,HDR的M25表面增加至近20%,但其中一个NR很少改变。长期老化后,NR的材料性能变化大于HDR的材料性能。此外,NR的材料特性比HDR的材料特性更深入地沿深度分布。这种趋势的原因是,HDR中包含的化合物具有防止材料受热的膨胀剂的作用。人们认为HDR比NR更适合长期使用。

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