Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Multistage quasi-zero stiffness vibration isolator
The multistage quasi-zero stiffness vibration isolator comprises a bottom frame body and a top cover, the top cover is horizontally arranged at the top of the bottom frame body, a first mounting plate is arranged in the center of the inner bottom of the bottom frame body, and a second mounting plate corresponding to the first mounting plate is fixedly connected to the bottom of the top cover; the bottom of the top cover is fixedly connected with a negative stiffness mechanism mounting rod corresponding to the second mounting plate; and the edges of the first mounting plate and the second mounting plate are connected through a plurality of arc-shaped steel wire ropes. The arc-shaped steel wire rope and the negative stiffness mechanism composed of the permanent magnets are combined in parallel, the arc-shaped steel wire rope supports the mass of vibration-isolated equipment, the negative stiffness mechanism counteracts the stiffness value of the arc-shaped steel wire rope, and the quasi-zero stiffness characteristic is achieved. Meanwhile, the vibration isolator is provided with a plurality of groups of negative stiffness basic modules, so that the quasi-zero stiffness position of the vibration isolator can be synchronously changed along with the change of the load, and the vibration isolation effect of the quasi-zero stiffness vibration isolator under the variable load working condition is effectively improved.
本发明公开了一种多级准零刚度隔振器，包括底框体和顶盖，所述顶盖水平设置于底框体的顶部，所述底框体的内底部中心设有第一安装板，所述顶盖的底部固定连接有与第一安装板对应设置的第二安装板，所述顶盖的底部固定连接有与第二安装板对应的负刚度机构安装杆；所述第一安装板和第二安装板的边缘通过多个弧形钢丝绳连接。本发明通过将弧形钢丝绳与由永磁铁构成的负刚度机构并联组合，弧形钢丝绳支撑被隔振设备的质量，负刚度机构抵消弧形钢丝绳的刚度值，实现准零刚度特性。同时，隔振器通过多组负刚度基本模块的设置，使隔振器的准零刚度位置可以随着负载的变化，进行同步变化，从而有效提升了准零刚度隔振器在变负载工况下的隔振效果。
Multistage quasi-zero stiffness vibration isolator
The multistage quasi-zero stiffness vibration isolator comprises a bottom frame body and a top cover, the top cover is horizontally arranged at the top of the bottom frame body, a first mounting plate is arranged in the center of the inner bottom of the bottom frame body, and a second mounting plate corresponding to the first mounting plate is fixedly connected to the bottom of the top cover; the bottom of the top cover is fixedly connected with a negative stiffness mechanism mounting rod corresponding to the second mounting plate; and the edges of the first mounting plate and the second mounting plate are connected through a plurality of arc-shaped steel wire ropes. The arc-shaped steel wire rope and the negative stiffness mechanism composed of the permanent magnets are combined in parallel, the arc-shaped steel wire rope supports the mass of vibration-isolated equipment, the negative stiffness mechanism counteracts the stiffness value of the arc-shaped steel wire rope, and the quasi-zero stiffness characteristic is achieved. Meanwhile, the vibration isolator is provided with a plurality of groups of negative stiffness basic modules, so that the quasi-zero stiffness position of the vibration isolator can be synchronously changed along with the change of the load, and the vibration isolation effect of the quasi-zero stiffness vibration isolator under the variable load working condition is effectively improved.
本发明公开了一种多级准零刚度隔振器，包括底框体和顶盖，所述顶盖水平设置于底框体的顶部，所述底框体的内底部中心设有第一安装板，所述顶盖的底部固定连接有与第一安装板对应设置的第二安装板，所述顶盖的底部固定连接有与第二安装板对应的负刚度机构安装杆；所述第一安装板和第二安装板的边缘通过多个弧形钢丝绳连接。本发明通过将弧形钢丝绳与由永磁铁构成的负刚度机构并联组合，弧形钢丝绳支撑被隔振设备的质量，负刚度机构抵消弧形钢丝绳的刚度值，实现准零刚度特性。同时，隔振器通过多组负刚度基本模块的设置，使隔振器的准零刚度位置可以随着负载的变化，进行同步变化，从而有效提升了准零刚度隔振器在变负载工况下的隔振效果。
Multistage quasi-zero stiffness vibration isolator
一种多级准零刚度隔振器
WANG KAI (Autor:in) / LI ZEYI (Autor:in) / CHEN TINGTING (Autor:in) / PAN HONGBIN (Autor:in) / ZHOU JIAXI (Autor:in)
07.03.2023
Patent
Elektronische Ressource
Chinesisch
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