A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Broadband passive vibration isolator and track system vibration reduction method
The invention relates to the technical field of rails, and particularly discloses a broadband passive vibration isolator and a track system vibration reduction method; the broadband passive vibrationisolator comprises an inertia amplification assembly and a rotary viscous damper, the inertia amplification assembly comprises a fixed support, a ball threaded lead screw and a flywheel, and the bottom of the fixed support is connected with one end of the ball threaded lead screw; a ball nut is in threaded connection with the ball threaded lead screw, and the bottom of the flywheel is connected with the ball nut; the rotary viscous damper comprises an outer pipe and an inner pipe, the inner pipe is arranged in the outer pipe, the space between the inner pipe and the outer pipe is filled with viscous materials, a bearing is arranged in a mounting hole, and one end of the ball nut penetrates through the mounting hole to be connected with the inner pipe in the outer pipe. The broadband passive vibration isolator and the track system vibration reduction method have the advantage of applying a wide-band passive vibration isolator in a rail system, the inertia amplification assembly in the vibration isolator can amplify damping of any order mode, and the vibration isolation frequency range and the low-frequency vibration reduction effect of an existing vibration isolator and the rail system are improved while the middle-high frequency band vibration reduction performance is guaranteed.
本发明涉及轨道技术领域，具体公开了一种宽频带被动隔振器及轨道系统减振方法，包括惯性放大组件和旋转黏滞阻尼器，惯性放大组件包括固定支座、滚珠螺纹丝杆和飞轮，固定支座的底部连接滚珠螺纹丝杆的一端，滚珠螺纹丝杆上螺纹连接有滚珠螺母，飞轮的底部与滚珠螺母连接；旋转黏滞阻尼器包括外管和内管，内管设置在外管内，内管与外管之间填充有黏滞材料，安装孔内设置有轴承，所述滚珠螺母的一端穿过安装孔与外管内的内管连接，本发明的优点是在轨道系统中应用宽频带被动隔振器，该隔振器中的惯性放大组件可以放大任意阶模态的阻尼，在保证中高频段减振性能的同时，提高既有隔振器以及轨道系统的隔振频率范围和低频减振效果。
Broadband passive vibration isolator and track system vibration reduction method
The invention relates to the technical field of rails, and particularly discloses a broadband passive vibration isolator and a track system vibration reduction method; the broadband passive vibrationisolator comprises an inertia amplification assembly and a rotary viscous damper, the inertia amplification assembly comprises a fixed support, a ball threaded lead screw and a flywheel, and the bottom of the fixed support is connected with one end of the ball threaded lead screw; a ball nut is in threaded connection with the ball threaded lead screw, and the bottom of the flywheel is connected with the ball nut; the rotary viscous damper comprises an outer pipe and an inner pipe, the inner pipe is arranged in the outer pipe, the space between the inner pipe and the outer pipe is filled with viscous materials, a bearing is arranged in a mounting hole, and one end of the ball nut penetrates through the mounting hole to be connected with the inner pipe in the outer pipe. The broadband passive vibration isolator and the track system vibration reduction method have the advantage of applying a wide-band passive vibration isolator in a rail system, the inertia amplification assembly in the vibration isolator can amplify damping of any order mode, and the vibration isolation frequency range and the low-frequency vibration reduction effect of an existing vibration isolator and the rail system are improved while the middle-high frequency band vibration reduction performance is guaranteed.
本发明涉及轨道技术领域，具体公开了一种宽频带被动隔振器及轨道系统减振方法，包括惯性放大组件和旋转黏滞阻尼器，惯性放大组件包括固定支座、滚珠螺纹丝杆和飞轮，固定支座的底部连接滚珠螺纹丝杆的一端，滚珠螺纹丝杆上螺纹连接有滚珠螺母，飞轮的底部与滚珠螺母连接；旋转黏滞阻尼器包括外管和内管，内管设置在外管内，内管与外管之间填充有黏滞材料，安装孔内设置有轴承，所述滚珠螺母的一端穿过安装孔与外管内的内管连接，本发明的优点是在轨道系统中应用宽频带被动隔振器，该隔振器中的惯性放大组件可以放大任意阶模态的阻尼，在保证中高频段减振性能的同时，提高既有隔振器以及轨道系统的隔振频率范围和低频减振效果。
Broadband passive vibration isolator and track system vibration reduction method
一种宽频带被动隔振器及轨道系统减振方法
ZHU SHENGYANG (author) / WEI WEI (author) / ZHAI WANMING (author) / ZHANG QINGLAI (author)
2021-03-19
Patent
Electronic Resource
Chinese
IPC:
E01B
PERMANENT WAY
,
Gleisoberbau
Broadband inertia enhancement vibration isolator and novel vibration reduction track
| European Patent Office | 2023