聚氨酯泡沫材料已经用于轨道隔振体中以及铁轨的其减震系统,它们具有良好的减震和隔音性能。为了获得有效的减震性能,必须对所使用的产品制定出一定的规范。但是由于聚合物材料的复杂性质,聚合物隔振的动态性能并未很好的列入一些规范中。有些标准已作为严格的控制参数,但这有可能 Polyurethane foam has been used in rail vibration isolators as well as rail damping systems, which have good damping and sound insulation properties. In order to obtain effective damping performance, the product must be used to develop a certain standard. However, due to the complex nature of polymer materials, the dynamic performance of polymer vibration isolation is not well included in some specifications. Some standards have been used as strict control parameters, but this is possible