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Inerter-negative stiffness multistage tuning vibration reduction system based on butterfly viscous damping
The invention relates to an inerter-negative stiffness multistage tuning vibration reduction system based on butterfly viscous damping. The inerter-negative stiffness multistage tuning vibration reduction system comprises unidirectional rotation inerter-viscous damping subsystems and transmission gears which are symmetrically arranged. A ball screw mechanism is arranged in the fixed outer cylinder and extends out of the fixed outer cylinder, and one end of the rotary inner cylinder is connected with the ball screw mechanism through a one-way bearing; the extending end of the ball screw mechanism is meshed with a transmission gear, the transmission gear is meshed with a driving gear shaft, and the driving gear shaft is connected with a structure through a spring. Compared with the prior art, butterfly damping with the energy consumption effect can be achieved only in the second quadrant and the fourth quadrant, too high damping control force in the first quadrant and the third quadrant is avoided, and the acceleration response peak control effect of the structure is remarkably improved; meanwhile, equivalent negative rigidity is achieved, the overall rigidity of the structure can be reduced, deformation of the damping units is amplified, and the higher energy consumption effect is generated; and the structure can be subjected to multi-stage tuning, and a damping deformation amplification space is provided, so that the vibration control frequency band can be widened.
本发明涉及一种基于蝶形黏滞阻尼的惯容‑负刚度多级调谐减振系统，系统包括对称布置的单向旋转惯容‑黏滞阻尼子系统、传动齿轮；固定外筒内设有滚珠丝杆机构，从固定外筒内伸出，旋转内筒的一端通过单向轴承与滚珠丝杆机构连接；滚珠丝杆机构的伸出端与传动齿轮啮合，传动齿轮与驱动齿轴啮合，驱动齿轴通过弹簧与结构连接。与现有技术相比，本发明能够实现仅在二四象限产生耗能效果的蝶形阻尼，避免一三象限过高阻尼控制力，显著提升结构加速度响应峰值控制效果；同时实现等效负刚度，能够削减结构的整体刚度，以放大阻尼单元得到变形，产生更强的耗能效果；还能够对结构进行多级调谐并提供阻尼变形放大空间，有利于拓宽振动控制频带。
Inerter-negative stiffness multistage tuning vibration reduction system based on butterfly viscous damping
The invention relates to an inerter-negative stiffness multistage tuning vibration reduction system based on butterfly viscous damping. The inerter-negative stiffness multistage tuning vibration reduction system comprises unidirectional rotation inerter-viscous damping subsystems and transmission gears which are symmetrically arranged. A ball screw mechanism is arranged in the fixed outer cylinder and extends out of the fixed outer cylinder, and one end of the rotary inner cylinder is connected with the ball screw mechanism through a one-way bearing; the extending end of the ball screw mechanism is meshed with a transmission gear, the transmission gear is meshed with a driving gear shaft, and the driving gear shaft is connected with a structure through a spring. Compared with the prior art, butterfly damping with the energy consumption effect can be achieved only in the second quadrant and the fourth quadrant, too high damping control force in the first quadrant and the third quadrant is avoided, and the acceleration response peak control effect of the structure is remarkably improved; meanwhile, equivalent negative rigidity is achieved, the overall rigidity of the structure can be reduced, deformation of the damping units is amplified, and the higher energy consumption effect is generated; and the structure can be subjected to multi-stage tuning, and a damping deformation amplification space is provided, so that the vibration control frequency band can be widened.
本发明涉及一种基于蝶形黏滞阻尼的惯容‑负刚度多级调谐减振系统，系统包括对称布置的单向旋转惯容‑黏滞阻尼子系统、传动齿轮；固定外筒内设有滚珠丝杆机构，从固定外筒内伸出，旋转内筒的一端通过单向轴承与滚珠丝杆机构连接；滚珠丝杆机构的伸出端与传动齿轮啮合，传动齿轮与驱动齿轴啮合，驱动齿轴通过弹簧与结构连接。与现有技术相比，本发明能够实现仅在二四象限产生耗能效果的蝶形阻尼，避免一三象限过高阻尼控制力，显著提升结构加速度响应峰值控制效果；同时实现等效负刚度，能够削减结构的整体刚度，以放大阻尼单元得到变形，产生更强的耗能效果；还能够对结构进行多级调谐并提供阻尼变形放大空间，有利于拓宽振动控制频带。
Inerter-negative stiffness multistage tuning vibration reduction system based on butterfly viscous damping
一种基于蝶形黏滞阻尼的惯容-负刚度多级调谐减振系统
ZHAO ZHIPENG (Autor:in) / WU MINJUN (Autor:in)
09.07.2024
Patent
Elektronische Ressource
Chinesisch
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