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A platform for research: civil engineering, architecture and urbanism
Ultralow-frequency tuning lever mass inertial damper and parameter design method thereof
The invention relates to the technical field of bridge vibration reduction, in particular to an ultralow-frequency tuning lever mass inertial mass damper and a parameter design method thereof, and the damper comprises a lever, a mass block, a spring and an inerter mechanism. The middle of the lever is rotatably arranged on a structure to be subjected to vibration reduction, and the lever is divided into a power arm and a resisting arm. The mass block is arranged on the power arm; one end of the spring is connected with the resisting arm, and the other end is connected with the to-be-damped structure; the inerter mechanism comprises an arc-shaped rack, a rotating shaft, a flywheel and a gear; the rotating shaft is rotationally connected with the power arm; the flywheel is arranged on the rotating shaft; the gear is arranged on the rotating shaft, the arc-shaped rack is fixedly arranged and matched with the gear, and when the power arm swings, the gear rotates relative to the arc-shaped rack and drives the flywheel to rotate. According to the scheme, the problems that in the prior art, an ultralow-frequency TMD scheme is adopted, the elongation amount and the using amount of a TMD spring can be increased, the TMD installation space is limited, the use cost of the TMD is greatly increased, and the influence of the self weight of the TMD on a bridge structure is caused can be solved.
本发明涉及桥梁减振技术领域，具体涉及一种超低频调谐杠杆质量惯质阻尼器及其参数设计方法，该阻尼器包括：杠杆、质量块、弹簧和惯容机构。杠杆中部可转动地设置在待减振结构上，将杠杆划分为动力臂和阻力臂；质量块设置在动力臂上；弹簧一端与阻力臂连接，另一端与待减振结构连接；惯容机构包括：弧形齿条、转动轴、飞轮和齿轮；转动轴与动力臂转动连接；飞轮设于转动轴上；齿轮设于转动轴上，弧形齿条固定设置，并与齿轮配合，动力臂摆动时，齿轮相对于弧形齿条转动，并带动飞轮转动。本方案能够解决现有技术中采用超低频TMD方案会增加TMD弹簧的伸长量和用量，使得TMD安装空间受限，并大大增加TMD的使用成本和TMD自重对桥梁结构产生影响的问题。
Ultralow-frequency tuning lever mass inertial damper and parameter design method thereof
The invention relates to the technical field of bridge vibration reduction, in particular to an ultralow-frequency tuning lever mass inertial mass damper and a parameter design method thereof, and the damper comprises a lever, a mass block, a spring and an inerter mechanism. The middle of the lever is rotatably arranged on a structure to be subjected to vibration reduction, and the lever is divided into a power arm and a resisting arm. The mass block is arranged on the power arm; one end of the spring is connected with the resisting arm, and the other end is connected with the to-be-damped structure; the inerter mechanism comprises an arc-shaped rack, a rotating shaft, a flywheel and a gear; the rotating shaft is rotationally connected with the power arm; the flywheel is arranged on the rotating shaft; the gear is arranged on the rotating shaft, the arc-shaped rack is fixedly arranged and matched with the gear, and when the power arm swings, the gear rotates relative to the arc-shaped rack and drives the flywheel to rotate. According to the scheme, the problems that in the prior art, an ultralow-frequency TMD scheme is adopted, the elongation amount and the using amount of a TMD spring can be increased, the TMD installation space is limited, the use cost of the TMD is greatly increased, and the influence of the self weight of the TMD on a bridge structure is caused can be solved.
本发明涉及桥梁减振技术领域，具体涉及一种超低频调谐杠杆质量惯质阻尼器及其参数设计方法，该阻尼器包括：杠杆、质量块、弹簧和惯容机构。杠杆中部可转动地设置在待减振结构上，将杠杆划分为动力臂和阻力臂；质量块设置在动力臂上；弹簧一端与阻力臂连接，另一端与待减振结构连接；惯容机构包括：弧形齿条、转动轴、飞轮和齿轮；转动轴与动力臂转动连接；飞轮设于转动轴上；齿轮设于转动轴上，弧形齿条固定设置，并与齿轮配合，动力臂摆动时，齿轮相对于弧形齿条转动，并带动飞轮转动。本方案能够解决现有技术中采用超低频TMD方案会增加TMD弹簧的伸长量和用量，使得TMD安装空间受限，并大大增加TMD的使用成本和TMD自重对桥梁结构产生影响的问题。
Ultralow-frequency tuning lever mass inertial damper and parameter design method thereof
一种超低频调谐杠杆质量惯质阻尼器及其参数设计方法
WU XIAOBO (author) / WANG BO (author) / JING GUOQIANG (author) / CHAI XIAOPENG (author) / WANG ZHENGXING (author) / GAO ZONGYU (author) / MA CHANGFEI (author) / XIAO LONG (author) / WANG DINGXIN (author) / DAI QINGNIAN (author)
2023-06-13
Patent
Electronic Resource
Chinese
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