Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Double-sling damper-concentrated mass block vibration reduction device and design method
The invention provides a double-sling damper-concentrated mass block vibration reduction device and a design method. According to the device, two slings are connected through a damper, and a counter weight mass block is installed at the joint of one sling and the damper; the vibration characteristic difference of the two slings can be increased through installation of the mass blocks, so that the slings at the connecting points of the two ends of the damper displace to generate a displacement difference when the double slings vibrate in the same phase, and then energy dissipation and vibration reduction of the damper are caused. According to the method, a double sling-damper-concentrated mass system model is established, and a system characteristic frequency equation is deduced. Multi-order same-phase and different-phase vibration modes of the sling are considered, and optimization design is conducted on multiple parameters such as the damping coefficient, the mass of the mass block and the installation position of the damper-concentrated mass block vibration reduction device. The damper and the concentrated mass block do not need a mounting bracket, so that the device is convenient to mount, maintain and replace, and is suitable for vibration reduction of slings of a suspension bridge or a through arch bridge.
本发明提供了一种双吊索阻尼器‑集中质量块减振装置及设计方法。装置采用阻尼器连接两根吊索，并在其中一根吊索与阻尼器的连接处安装配重质量块；质量块的安装可以增大两根吊索的振动特性差异，使得双索发生同相位振动时阻尼器两端连接点吊索位移产生位移差，进而引起阻尼器的耗能减振。本发明建立了双吊索‑阻尼器‑集中质量系统模型，推导了系统特征频率方程。考虑吊索多阶同、异相位振动模态，对阻尼器‑集中质量块减振装置的阻尼系数、质量块质量及安装位置等多参数进行优化设计。本发明中阻尼器和集中质量块无需安装支架，因此其安装、维护、更换便利，适用于悬索桥或下承式拱桥吊索的减振。
Double-sling damper-concentrated mass block vibration reduction device and design method
The invention provides a double-sling damper-concentrated mass block vibration reduction device and a design method. According to the device, two slings are connected through a damper, and a counter weight mass block is installed at the joint of one sling and the damper; the vibration characteristic difference of the two slings can be increased through installation of the mass blocks, so that the slings at the connecting points of the two ends of the damper displace to generate a displacement difference when the double slings vibrate in the same phase, and then energy dissipation and vibration reduction of the damper are caused. According to the method, a double sling-damper-concentrated mass system model is established, and a system characteristic frequency equation is deduced. Multi-order same-phase and different-phase vibration modes of the sling are considered, and optimization design is conducted on multiple parameters such as the damping coefficient, the mass of the mass block and the installation position of the damper-concentrated mass block vibration reduction device. The damper and the concentrated mass block do not need a mounting bracket, so that the device is convenient to mount, maintain and replace, and is suitable for vibration reduction of slings of a suspension bridge or a through arch bridge.
本发明提供了一种双吊索阻尼器‑集中质量块减振装置及设计方法。装置采用阻尼器连接两根吊索，并在其中一根吊索与阻尼器的连接处安装配重质量块；质量块的安装可以增大两根吊索的振动特性差异，使得双索发生同相位振动时阻尼器两端连接点吊索位移产生位移差，进而引起阻尼器的耗能减振。本发明建立了双吊索‑阻尼器‑集中质量系统模型，推导了系统特征频率方程。考虑吊索多阶同、异相位振动模态，对阻尼器‑集中质量块减振装置的阻尼系数、质量块质量及安装位置等多参数进行优化设计。本发明中阻尼器和集中质量块无需安装支架，因此其安装、维护、更换便利，适用于悬索桥或下承式拱桥吊索的减振。
Double-sling damper-concentrated mass block vibration reduction device and design method
一种双吊索阻尼器-集中质量块减振装置及设计方法
DI FANGDIAN (Autor:in) / SHI HONGEN (Autor:in) / KANG PANXIU (Autor:in) / LI ZIHAO (Autor:in) / WANG YANCONG (Autor:in)
13.02.2024
Patent
Elektronische Ressource
Chinesisch
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