Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Mass distribution type steel rail comprehensive damping vibration and noise reduction device
The invention is suitable for the technical field of rail transit vibration and noise reduction, and provides a mass distribution type steel rail comprehensive damping vibration and noise reduction device. The device is applied to a steel rail, is installed on the rail web and the rail bottom of a steel rail and comprises counterweight vibrators, a damping layer and a protection frame. By arranging the protection frame wrapping the outer surfaces of the rail web and the rail bottom of the steel rail, the damping layer contained in the protection frame and the multiple counterweight vibrators distributed in the damping layer, when the counterweight vibrators vibrate along with the steel rail, multiple mass-spring systems arranged in a distributed mode are formed, and vibration energy of thesteel rail is consumed by means of reciprocating vibration of the counterweight vibrators at the balance position; meanwhile, extrusion and shear deformation of the middle elastic damping material are caused by relative movement between the adjacent counterweight vibrators, and vibration energy transmitted by the steel rail can be further consumed. In addition, synchronous control over vibrationnoise of different frequency bands can be achieved, and the problems of falling off, rollover and the like caused by the fact that large-mass balancing weights are concentrated on the side wings of the steel rail can be avoided.
本发明适用于轨道交通减振降噪技术领域，提供了质量分布式钢轨综合阻尼减振降噪装置，其应用于钢轨上，安装在钢轨轨腰及轨底，包括配重振子、阻尼层和保护框。通过设置包裹钢轨的轨腰和轨底的外表面的保护框、容纳于保护框内部的阻尼层和分布在阻尼层内多个配重振子，从而配重振子随钢轨振动时，形成多个、分布设置的质量‑弹簧系统，依靠配重振子在平衡位置的往复振动，消耗钢轨振动能量；同时，相邻配重振子间的相对运动造成中间弹性阻尼材料的挤压、剪切变形，可进一步消耗钢轨传递的振动能量。本发明还可实现对不同频段的振动噪声的同步控制，并可避免大质量配重块集中于钢轨侧翼导致的脱落侧翻等问题。
Mass distribution type steel rail comprehensive damping vibration and noise reduction device
The invention is suitable for the technical field of rail transit vibration and noise reduction, and provides a mass distribution type steel rail comprehensive damping vibration and noise reduction device. The device is applied to a steel rail, is installed on the rail web and the rail bottom of a steel rail and comprises counterweight vibrators, a damping layer and a protection frame. By arranging the protection frame wrapping the outer surfaces of the rail web and the rail bottom of the steel rail, the damping layer contained in the protection frame and the multiple counterweight vibrators distributed in the damping layer, when the counterweight vibrators vibrate along with the steel rail, multiple mass-spring systems arranged in a distributed mode are formed, and vibration energy of thesteel rail is consumed by means of reciprocating vibration of the counterweight vibrators at the balance position; meanwhile, extrusion and shear deformation of the middle elastic damping material are caused by relative movement between the adjacent counterweight vibrators, and vibration energy transmitted by the steel rail can be further consumed. In addition, synchronous control over vibrationnoise of different frequency bands can be achieved, and the problems of falling off, rollover and the like caused by the fact that large-mass balancing weights are concentrated on the side wings of the steel rail can be avoided.
本发明适用于轨道交通减振降噪技术领域，提供了质量分布式钢轨综合阻尼减振降噪装置，其应用于钢轨上，安装在钢轨轨腰及轨底，包括配重振子、阻尼层和保护框。通过设置包裹钢轨的轨腰和轨底的外表面的保护框、容纳于保护框内部的阻尼层和分布在阻尼层内多个配重振子，从而配重振子随钢轨振动时，形成多个、分布设置的质量‑弹簧系统，依靠配重振子在平衡位置的往复振动，消耗钢轨振动能量；同时，相邻配重振子间的相对运动造成中间弹性阻尼材料的挤压、剪切变形，可进一步消耗钢轨传递的振动能量。本发明还可实现对不同频段的振动噪声的同步控制，并可避免大质量配重块集中于钢轨侧翼导致的脱落侧翻等问题。
Mass distribution type steel rail comprehensive damping vibration and noise reduction device
质量分布式钢轨综合阻尼减振降噪装置
YE JUN (Autor:in) / MA JIAJUN (Autor:in) / SUN JINGLIN (Autor:in) / RAN LEI (Autor:in) / ZHANG QING (Autor:in) / CAO LIANG (Autor:in) / QU MING (Autor:in) / LIU ZHENGQI (Autor:in) / LI JUNXI (Autor:in) / YU LEI (Autor:in)
09.10.2020
Patent
Elektronische Ressource
Chinesisch
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