Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Quasi-zero stiffness vibration reduction track structure based on bionic structure
The invention discloses a quasi-zero rigidity vibration reduction track structure based on a bionic structure, and belongs to the technical field of track traffic, the quasi-zero rigidity vibration reduction track structure comprises a supporting structure and a supporting structure steel rail supporting table, and a steel rail is arranged on the upper end face of the steel rail supporting table; a bionic limb-shaped quasi-zero stiffness vibration reduction mechanism is arranged between the steel rail supporting table and the bottom of the reserved cavity of the track bed slab and comprises an upper supporting block, a lower supporting block and a vibration reduction piece, and the vibration reduction piece comprises two upper connecting rods, two lower connecting rods and a reset elastic rod with a horizontal spring. When the damping piece is pressed, the horizontal spring is pulled, the damping piece provides negative stiffness damping, when the damping piece vibrates and is pulled, the horizontal spring is pressed, the damping piece provides positive stiffness damping, a good vibration reduction and isolation effect is provided for the steel rail, nonlinear stiffness beneficial to vibration isolation is achieved, and the vibration isolation effect is good. And flexible quasi-zero stiffness, zero stiffness and negative stiffness can be provided.
本发明公开了一种基于仿生结构的准零刚度减振轨道结构，属于轨道交通技术领域，准零刚度减振轨道结构包括支撑结构，支撑结构钢轨支撑台，钢轨支撑台的上端面设置有钢轨，钢轨支撑台与轨道道床板的预留空腔底部之间设置有仿生肢状准零刚度减振机构，仿生肢状准零刚度减振机构包括上支撑块、下支撑块和减震件，减震件包括两根上连接杆、两根下连接杆和带有水平弹簧的复位弹性杆，当钢轨发生振动时，带动上、下连接杆围绕转轴转动，当减震件受压时水平弹簧受拉，减震件提供负刚度阻尼，当减震件振动受拉时水平弹簧受压，减震件提供正刚度阻尼，给钢轨提供良好的减振隔振效果，具有对隔振有利的非线性刚度，可以提供灵活的准零刚度、零刚度和负刚度。
Quasi-zero stiffness vibration reduction track structure based on bionic structure
The invention discloses a quasi-zero rigidity vibration reduction track structure based on a bionic structure, and belongs to the technical field of track traffic, the quasi-zero rigidity vibration reduction track structure comprises a supporting structure and a supporting structure steel rail supporting table, and a steel rail is arranged on the upper end face of the steel rail supporting table; a bionic limb-shaped quasi-zero stiffness vibration reduction mechanism is arranged between the steel rail supporting table and the bottom of the reserved cavity of the track bed slab and comprises an upper supporting block, a lower supporting block and a vibration reduction piece, and the vibration reduction piece comprises two upper connecting rods, two lower connecting rods and a reset elastic rod with a horizontal spring. When the damping piece is pressed, the horizontal spring is pulled, the damping piece provides negative stiffness damping, when the damping piece vibrates and is pulled, the horizontal spring is pressed, the damping piece provides positive stiffness damping, a good vibration reduction and isolation effect is provided for the steel rail, nonlinear stiffness beneficial to vibration isolation is achieved, and the vibration isolation effect is good. And flexible quasi-zero stiffness, zero stiffness and negative stiffness can be provided.
本发明公开了一种基于仿生结构的准零刚度减振轨道结构，属于轨道交通技术领域，准零刚度减振轨道结构包括支撑结构，支撑结构钢轨支撑台，钢轨支撑台的上端面设置有钢轨，钢轨支撑台与轨道道床板的预留空腔底部之间设置有仿生肢状准零刚度减振机构，仿生肢状准零刚度减振机构包括上支撑块、下支撑块和减震件，减震件包括两根上连接杆、两根下连接杆和带有水平弹簧的复位弹性杆，当钢轨发生振动时，带动上、下连接杆围绕转轴转动，当减震件受压时水平弹簧受拉，减震件提供负刚度阻尼，当减震件振动受拉时水平弹簧受压，减震件提供正刚度阻尼，给钢轨提供良好的减振隔振效果，具有对隔振有利的非线性刚度，可以提供灵活的准零刚度、零刚度和负刚度。
Quasi-zero stiffness vibration reduction track structure based on bionic structure
一种基于仿生结构的准零刚度减振轨道结构
LIU QUANMIN (Autor:in) / LUO GUOZHENG (Autor:in) / LUO WENJUN (Autor:in) / SONG LIZHONG (Autor:in) / LI JINHUA (Autor:in) / HUANG YONGHU (Autor:in) / FANG JIAN (Autor:in)
02.07.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E01B
PERMANENT WAY
,
Gleisoberbau
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