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A platform for research: civil engineering, architecture and urbanism
Staggered broadband noise reduction steel rail
The invention relates to a staggered broadband noise reduction steel rail which is characterized in that first frequency band shock absorbers and second frequency band shock absorbers are distributed on a steel rail body, and the first frequency band shock absorbers and the second frequency band shock absorbers are staggered with each other and distributed in the axial direction of the steel rail; the first frequency band damper comprises two first damping units symmetrically distributed on the two sides of the steel rail body. Each first damping unit comprises a first resonance mass block and first elastic blocks arranged on the two sides of the first resonance mass block. The second frequency band damper comprises two second damping units symmetrically distributed on the two sides of the steel rail body, and each second damping unit comprises a second resonance mass block and second elastic blocks arranged on the two sides of the second resonance mass block. Compared with the prior art, various noise reduction structure principles are utilized, a wider noise reduction frequency band is formed, a good suppression effect on vibration sound radiation of the steel rail is achieved, and meanwhile the noise reduction frequency range of the steel rail is easily and directly adjusted and controlled.
本发明涉及一种交错式宽频降噪钢轨，在钢轨本体上分布有第一频带减振器和第二频带减振器，第一频带减振器和第二频带减振器互相交错沿着钢轨轴向分布；第一频带减振器包括两个对称分布在钢轨本体两侧的第一减振单元，每个第一减振单元包括一个第一谐振质量块和设置在第一谐振质量块两侧的第一弹性块；第二频带减振器包括两个对称分布在钢轨本体两侧的第二减振单元，每个第二减振单元包括一个第二谐振质量块和设置在第二谐振质量块两侧的第二弹性块。与现有技术相比，本发明利用多种降噪结构原理，形成更宽的降噪频带，对钢轨的振动声辐射具有良好的抑制效果，同时易于直接调整和控制其降噪频率范围。
Staggered broadband noise reduction steel rail
The invention relates to a staggered broadband noise reduction steel rail which is characterized in that first frequency band shock absorbers and second frequency band shock absorbers are distributed on a steel rail body, and the first frequency band shock absorbers and the second frequency band shock absorbers are staggered with each other and distributed in the axial direction of the steel rail; the first frequency band damper comprises two first damping units symmetrically distributed on the two sides of the steel rail body. Each first damping unit comprises a first resonance mass block and first elastic blocks arranged on the two sides of the first resonance mass block. The second frequency band damper comprises two second damping units symmetrically distributed on the two sides of the steel rail body, and each second damping unit comprises a second resonance mass block and second elastic blocks arranged on the two sides of the second resonance mass block. Compared with the prior art, various noise reduction structure principles are utilized, a wider noise reduction frequency band is formed, a good suppression effect on vibration sound radiation of the steel rail is achieved, and meanwhile the noise reduction frequency range of the steel rail is easily and directly adjusted and controlled.
本发明涉及一种交错式宽频降噪钢轨，在钢轨本体上分布有第一频带减振器和第二频带减振器，第一频带减振器和第二频带减振器互相交错沿着钢轨轴向分布；第一频带减振器包括两个对称分布在钢轨本体两侧的第一减振单元，每个第一减振单元包括一个第一谐振质量块和设置在第一谐振质量块两侧的第一弹性块；第二频带减振器包括两个对称分布在钢轨本体两侧的第二减振单元，每个第二减振单元包括一个第二谐振质量块和设置在第二谐振质量块两侧的第二弹性块。与现有技术相比，本发明利用多种降噪结构原理，形成更宽的降噪频带，对钢轨的振动声辐射具有良好的抑制效果，同时易于直接调整和控制其降噪频率范围。
Staggered broadband noise reduction steel rail
一种交错式宽频降噪钢轨
ZHOU XIN (author) / ZHONG SHUOQIAO (author) / ZHU YILUN (author)
2021-09-03
Patent
Electronic Resource
Chinese
IPC:
E01B
PERMANENT WAY
,
Gleisoberbau
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