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Low-frequency vibration isolator with ultra-wide quasi-zero stiffness interval
The low-frequency 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 supporting ring is arranged at the center of the inner bottom of the bottom frame body, and the bottom of the top cover is fixedly connected with a second supporting ring corresponding to the first supporting ring; the bottom of the top cover is fixedly connected with a negative stiffness mechanism mounting sleeve corresponding to the second supporting ring; the edge of the first supporting ring and the edge of the second supporting ring are connected through a plurality of arc-shaped steel wire ropes, a guide rod is fixedly connected to the center of the bottom of the second supporting ring, and a through opening corresponding to the guide rod is fixedly connected to the top of the first supporting ring. According to the quasi-zero stiffness vibration isolator, through the arrangement of the magnet ring type negative stiffness mechanism, the negative stiffness mechanism can generate the quasi-zero stiffness characteristic in a large displacement interval, the vibration isolation interval of the vibration isolator can be subjected to stepless change along with the change of the load, and therefore the application range of the quasi-zero stiffness vibration isolator is effectively widened.
本发明公开了一种具有超宽准零刚度区间的低频隔振器，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支撑圈，所述顶盖的底部固定连接有与第一支撑圈对应的第二支撑圈，所述顶盖的底部固定连接有与第二支撑圈对应的负刚度机构安装套；所述第一支撑圈和第二支撑圈的边缘通过多个弧形钢丝绳连接，所述第二支撑圈的底部中心固定连接有导向杆，所述第一支撑圈的顶部固定连接有与导向杆对应的通口。本发明通过磁铁环式负刚度机构的设置，使负刚度机构能够在大位移区间内产生准零刚度特性，使隔振器的隔振区间可以随着载荷的变化，进行无极变化，从而有效提升了准零刚度隔振器的适用范围。
Low-frequency vibration isolator with ultra-wide quasi-zero stiffness interval
The low-frequency 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 supporting ring is arranged at the center of the inner bottom of the bottom frame body, and the bottom of the top cover is fixedly connected with a second supporting ring corresponding to the first supporting ring; the bottom of the top cover is fixedly connected with a negative stiffness mechanism mounting sleeve corresponding to the second supporting ring; the edge of the first supporting ring and the edge of the second supporting ring are connected through a plurality of arc-shaped steel wire ropes, a guide rod is fixedly connected to the center of the bottom of the second supporting ring, and a through opening corresponding to the guide rod is fixedly connected to the top of the first supporting ring. According to the quasi-zero stiffness vibration isolator, through the arrangement of the magnet ring type negative stiffness mechanism, the negative stiffness mechanism can generate the quasi-zero stiffness characteristic in a large displacement interval, the vibration isolation interval of the vibration isolator can be subjected to stepless change along with the change of the load, and therefore the application range of the quasi-zero stiffness vibration isolator is effectively widened.
本发明公开了一种具有超宽准零刚度区间的低频隔振器，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支撑圈，所述顶盖的底部固定连接有与第一支撑圈对应的第二支撑圈，所述顶盖的底部固定连接有与第二支撑圈对应的负刚度机构安装套；所述第一支撑圈和第二支撑圈的边缘通过多个弧形钢丝绳连接，所述第二支撑圈的底部中心固定连接有导向杆，所述第一支撑圈的顶部固定连接有与导向杆对应的通口。本发明通过磁铁环式负刚度机构的设置，使负刚度机构能够在大位移区间内产生准零刚度特性，使隔振器的隔振区间可以随着载荷的变化，进行无极变化，从而有效提升了准零刚度隔振器的适用范围。
Low-frequency vibration isolator with ultra-wide quasi-zero stiffness interval
一种具有超宽准零刚度区间的低频隔振器
WANG KAI (author) / CHEN TINGTING (author) / CAI CHANGQI (author) / ZHOU JIAHAO (author) / TAN DONGGUO (author)
2023-03-21
Patent
Electronic Resource
Chinese
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