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Vibration isolation device for track floating slab
The vibration isolation device comprises a top plate, a bottom plate, a steel spring and a plurality of variable-rigidity assemblies, the two ends of the steel spring are correspondingly connected with the top plate and the bottom plate, and the variable-rigidity assemblies are annularly arranged on the periphery of the steel spring at intervals; each variable stiffness component comprises a top plate pull rod, a bottom plate pull rod and a prestress shape memory alloy pull rod, the upper end of the top plate pull rod is connected with the top plate, the lower end of the bottom plate pull rod is connected with the bottom plate, and two ends of the prestress shape memory alloy pull rod are correspondingly connected with the lower end of the top plate pull rod and the upper end of the bottom plate pull rod respectively. The vibration isolation device for the track floating slab has the variable stiffness characteristics of high static stiffness and low dynamic stiffness, and the vibration isolation effect is good.
本发明提供了一种用于轨道浮置板的隔振装置，包括顶板、底板、钢弹簧和多个变刚度组件，钢弹簧的两端分别与顶板、底板对应连接，多个变刚度组件呈环状间隔布置在钢弹簧的外围，各变刚度组件均包括顶板拉杆、底板拉杆和预应力形状记忆合金拉杆，顶板拉杆的上端与顶板连接，底板拉杆的下端与底板连接，预应力形状记忆合金拉杆的两端分别与顶板拉杆的下端、底板拉杆的上端对应连接。本发明提供的用于轨道浮置板的隔振装置，具有高静态刚度和低动态刚度的变刚度特性，隔振效果良好。
Vibration isolation device for track floating slab
The vibration isolation device comprises a top plate, a bottom plate, a steel spring and a plurality of variable-rigidity assemblies, the two ends of the steel spring are correspondingly connected with the top plate and the bottom plate, and the variable-rigidity assemblies are annularly arranged on the periphery of the steel spring at intervals; each variable stiffness component comprises a top plate pull rod, a bottom plate pull rod and a prestress shape memory alloy pull rod, the upper end of the top plate pull rod is connected with the top plate, the lower end of the bottom plate pull rod is connected with the bottom plate, and two ends of the prestress shape memory alloy pull rod are correspondingly connected with the lower end of the top plate pull rod and the upper end of the bottom plate pull rod respectively. The vibration isolation device for the track floating slab has the variable stiffness characteristics of high static stiffness and low dynamic stiffness, and the vibration isolation effect is good.
本发明提供了一种用于轨道浮置板的隔振装置，包括顶板、底板、钢弹簧和多个变刚度组件，钢弹簧的两端分别与顶板、底板对应连接，多个变刚度组件呈环状间隔布置在钢弹簧的外围，各变刚度组件均包括顶板拉杆、底板拉杆和预应力形状记忆合金拉杆，顶板拉杆的上端与顶板连接，底板拉杆的下端与底板连接，预应力形状记忆合金拉杆的两端分别与顶板拉杆的下端、底板拉杆的上端对应连接。本发明提供的用于轨道浮置板的隔振装置，具有高静态刚度和低动态刚度的变刚度特性，隔振效果良好。
Vibration isolation device for track floating slab
一种用于轨道浮置板的隔振装置
LIU YANHUI (author) / XIA YISHU (author)
2024-04-12
Patent
Electronic Resource
Chinese
IPC:
E01B
PERMANENT WAY
,
Gleisoberbau
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