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Phononic crystal vibration isolator based on acoustic black hole notch mechanism
The invention relates to the field of track noise reduction, in particular to a phononic crystal vibration isolator based on an acoustic black hole notch mechanism. The vibration isolation device comprises a plurality of vibration isolation assemblies arranged side by side. Each vibration isolation assembly comprises a connector, an inner ring rubber layer, a middle ring rubber layer, a steel vibrator shell and an outer ring rubber layer. The connector, the inner ring rubber layer, the middle ring rubber layer, the steel vibrator shell and the outer ring rubber layer are all of rotary structures; in the same vibration isolation assembly, the connector is provided with a channel allowing the inner ring rubber layer to be clamped in, the middle ring rubber layer is coaxially arranged on the outer circumferential face of the connector, the steel vibrator shell is coaxially arranged on the outer circumferential face of the middle ring rubber layer, and the outer ring rubber layer is coaxially arranged on the outer circumferential face of the steel vibrator shell. Every two adjacent vibration isolation assemblies are connected through two of the connectors. The vibration isolation capacity is high, and the band gap vibration isolation frequency is reduced.
本发明涉及轨道降噪领域，具体为一种基于声学黑洞陷波机理的声子晶体隔振器。其包括并排设置的多组隔振组件，隔振组件包括连接器、内环橡胶层、中环橡胶层、钢振子外壳和外环橡胶层；连接器、内环橡胶层、中环橡胶层、钢振子外壳和外环橡胶层均为回转形结构；同一隔振组件中，连接器具有供内环橡胶层卡入的通道，中环橡胶层同轴设置在连接器外周面上，钢振子外壳同轴设置在中环橡胶层外周面上，外环橡胶层同轴设置在钢振子外壳外周面上；相邻两组隔振组件通过其中的两个连接器连接。本发明隔振能力强且降低了带隙隔振频率。
Phononic crystal vibration isolator based on acoustic black hole notch mechanism
The invention relates to the field of track noise reduction, in particular to a phononic crystal vibration isolator based on an acoustic black hole notch mechanism. The vibration isolation device comprises a plurality of vibration isolation assemblies arranged side by side. Each vibration isolation assembly comprises a connector, an inner ring rubber layer, a middle ring rubber layer, a steel vibrator shell and an outer ring rubber layer. The connector, the inner ring rubber layer, the middle ring rubber layer, the steel vibrator shell and the outer ring rubber layer are all of rotary structures; in the same vibration isolation assembly, the connector is provided with a channel allowing the inner ring rubber layer to be clamped in, the middle ring rubber layer is coaxially arranged on the outer circumferential face of the connector, the steel vibrator shell is coaxially arranged on the outer circumferential face of the middle ring rubber layer, and the outer ring rubber layer is coaxially arranged on the outer circumferential face of the steel vibrator shell. Every two adjacent vibration isolation assemblies are connected through two of the connectors. The vibration isolation capacity is high, and the band gap vibration isolation frequency is reduced.
本发明涉及轨道降噪领域，具体为一种基于声学黑洞陷波机理的声子晶体隔振器。其包括并排设置的多组隔振组件，隔振组件包括连接器、内环橡胶层、中环橡胶层、钢振子外壳和外环橡胶层；连接器、内环橡胶层、中环橡胶层、钢振子外壳和外环橡胶层均为回转形结构；同一隔振组件中，连接器具有供内环橡胶层卡入的通道，中环橡胶层同轴设置在连接器外周面上，钢振子外壳同轴设置在中环橡胶层外周面上，外环橡胶层同轴设置在钢振子外壳外周面上；相邻两组隔振组件通过其中的两个连接器连接。本发明隔振能力强且降低了带隙隔振频率。
Phononic crystal vibration isolator based on acoustic black hole notch mechanism
一种基于声学黑洞陷波机理的声子晶体隔振器
ZHAO CAIYOU (author) / WANG PING (author) / ZHENG JUNYUAN (author) / SHI DUOJIA (author) / WANG LIUCHONG (author) / GAO XIN (author) / ZHAO YANNAN (author) / LIU YAWEN (author) / ZHANG XINHAO (author) / SONG ZIYANG (author)
2022-06-28
Patent
Electronic Resource
Chinese
IPC:
E01B
PERMANENT WAY
,
Gleisoberbau
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| European Patent Office | 2023