Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Novel steel rail composite energy dissipation vibration and noise reduction device
The invention discloses a novel steel rail composite energy consumption vibration and noise reduction device, which relates to the technical field of steel rail noise reduction equipment. The device comprises a plurality of resonant cavities arranged on two sides of a steel rail, wherein the resonant cavities on the two sides are arranged from top to bottom, a damping cavity is arranged on the outer side of each resonant cavity, and the resonant cavities are separated from the damping cavities through elastic films; two permanent magnets with opposite magnetic poles and a metal piece located between the two permanent magnets are arranged in each damping cavity, one end of the metal piece is connected with the elastic film, and the other end of the metal piece is fixed to the side wall of the damping cavity through an elastic piece. By arranging the damping cavity, when the elastic thin film in the resonant cavity vibrates, the metal piece connected with the elastic thin film and the elastic thin film vibrate synchronously, so the magnetic flux penetrating through the metal piece is changed, the magnetic field force is generated on the metal piece due to electromagnetic induction, and vibration energy of the elastic thin film is continuously consumed; and finally, good sound absorption and noise reduction effects can be achieved.
本发明公开一种新型钢轨复合耗能减振降噪装置，涉及钢轨降噪设备技术领域，包括设置在钢轨两侧的若干共振腔，两侧的若干共振腔均自上而下排列，每个共振腔的外侧均设置有一阻尼腔，共振腔与阻尼腔通过弹性薄膜隔开，每个阻尼腔中设置有磁极相对的两永磁体及其位于两永磁体之间的金属件，金属件的一端与弹性薄膜连接，另一端通过弹性件固定在阻尼腔的侧壁上；本发明通过设置阻尼腔，当共振腔中的弹性薄膜振动时，与弹性薄膜连接的金属件与弹性薄膜同步振动，导致穿过金属件的磁通量发生变化，进而由于电磁感应对金属件产生磁场力，不断消耗弹性薄膜的振动能量，最终能够达到良好的吸声降噪效果。
Novel steel rail composite energy dissipation vibration and noise reduction device
The invention discloses a novel steel rail composite energy consumption vibration and noise reduction device, which relates to the technical field of steel rail noise reduction equipment. The device comprises a plurality of resonant cavities arranged on two sides of a steel rail, wherein the resonant cavities on the two sides are arranged from top to bottom, a damping cavity is arranged on the outer side of each resonant cavity, and the resonant cavities are separated from the damping cavities through elastic films; two permanent magnets with opposite magnetic poles and a metal piece located between the two permanent magnets are arranged in each damping cavity, one end of the metal piece is connected with the elastic film, and the other end of the metal piece is fixed to the side wall of the damping cavity through an elastic piece. By arranging the damping cavity, when the elastic thin film in the resonant cavity vibrates, the metal piece connected with the elastic thin film and the elastic thin film vibrate synchronously, so the magnetic flux penetrating through the metal piece is changed, the magnetic field force is generated on the metal piece due to electromagnetic induction, and vibration energy of the elastic thin film is continuously consumed; and finally, good sound absorption and noise reduction effects can be achieved.
本发明公开一种新型钢轨复合耗能减振降噪装置，涉及钢轨降噪设备技术领域，包括设置在钢轨两侧的若干共振腔，两侧的若干共振腔均自上而下排列，每个共振腔的外侧均设置有一阻尼腔，共振腔与阻尼腔通过弹性薄膜隔开，每个阻尼腔中设置有磁极相对的两永磁体及其位于两永磁体之间的金属件，金属件的一端与弹性薄膜连接，另一端通过弹性件固定在阻尼腔的侧壁上；本发明通过设置阻尼腔，当共振腔中的弹性薄膜振动时，与弹性薄膜连接的金属件与弹性薄膜同步振动，导致穿过金属件的磁通量发生变化，进而由于电磁感应对金属件产生磁场力，不断消耗弹性薄膜的振动能量，最终能够达到良好的吸声降噪效果。
Novel steel rail composite energy dissipation vibration and noise reduction device
一种新型钢轨复合耗能减振降噪装置
HUANG YONGHU (Autor:in) / LYU MENGYUAN (Autor:in) / ZHANG HONGLI (Autor:in) / LUO WENJUN (Autor:in) / GENG DAXIN (Autor:in)
20.04.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E01B
PERMANENT WAY
,
Gleisoberbau
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