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Magnetic negative stiffness eddy current damper suitable for multi-mode vibration reduction of super-long cable
The invention relates to the technical field of engineering vibration control, in particular to a magnetic negative stiffness eddy current damper suitable for multi-mode vibration reduction of an ultra-long cable. The magnetic negative stiffness eddy current damper comprises a supporting element, a transmission element, a magnetic negative stiffness element and a multi-layer plate type eddy current damping element. The transmission element is arranged in the supporting element, the magnetic negative stiffness element is arranged at the upper end of the supporting element, the multi-layer plate type eddy current damping element is arranged at the lower end of the supporting element, and the magnetic negative stiffness element and the multi-layer plate type eddy current damping element are both connected with the transmission element. According to the stayed cable, by means of the energy consumption and efficiency improvement mechanism of the magnetic negative stiffness element on the multi-layer plate type eddy current damping element, the multi-mode vibration reduction effect of the stayed cable can be remarkably improved; the multi-layer plate type eddy current damping element capable of cutting the magnetic induction lines up and down is adopted, and the situation that the multi-mode vibration reduction effect of the stay cable is remarkably reduced due to the fact that the inertia mass of a rotating component in a rotating type eddy current damping element capable of cutting the magnetic induction lines rotationally is too large can be avoided.
本发明涉及工程振动控制技术领域，涉及一种适用于超长索多模态减振的磁致负刚度电涡流阻尼器。磁致负刚度电涡流阻尼器包括支撑元件、传动元件、磁致负刚度元件和多层板式电涡流阻尼元件。传动元件设置于支撑元件内部，磁致负刚度元件设置于支撑元件上端，多层板式电涡流阻尼元件设置于支撑元件下端，磁致负刚度元件和多层板式电涡流阻尼元件均与传动元件连接。本发明利用磁致负刚度元件对多层板式电涡流阻尼元件的耗能增效机制，可实现斜拉索多模态减振效果的显著提升；采用作上下切割磁感线运动的多层板式电涡流阻尼元件，可避免采用作转动切割磁感线运动的旋转式电涡流阻尼元件中旋转构件的惯性质量过大对斜拉索多模态减振效果的显著降低。
Magnetic negative stiffness eddy current damper suitable for multi-mode vibration reduction of super-long cable
The invention relates to the technical field of engineering vibration control, in particular to a magnetic negative stiffness eddy current damper suitable for multi-mode vibration reduction of an ultra-long cable. The magnetic negative stiffness eddy current damper comprises a supporting element, a transmission element, a magnetic negative stiffness element and a multi-layer plate type eddy current damping element. The transmission element is arranged in the supporting element, the magnetic negative stiffness element is arranged at the upper end of the supporting element, the multi-layer plate type eddy current damping element is arranged at the lower end of the supporting element, and the magnetic negative stiffness element and the multi-layer plate type eddy current damping element are both connected with the transmission element. According to the stayed cable, by means of the energy consumption and efficiency improvement mechanism of the magnetic negative stiffness element on the multi-layer plate type eddy current damping element, the multi-mode vibration reduction effect of the stayed cable can be remarkably improved; the multi-layer plate type eddy current damping element capable of cutting the magnetic induction lines up and down is adopted, and the situation that the multi-mode vibration reduction effect of the stay cable is remarkably reduced due to the fact that the inertia mass of a rotating component in a rotating type eddy current damping element capable of cutting the magnetic induction lines rotationally is too large can be avoided.
本发明涉及工程振动控制技术领域，涉及一种适用于超长索多模态减振的磁致负刚度电涡流阻尼器。磁致负刚度电涡流阻尼器包括支撑元件、传动元件、磁致负刚度元件和多层板式电涡流阻尼元件。传动元件设置于支撑元件内部，磁致负刚度元件设置于支撑元件上端，多层板式电涡流阻尼元件设置于支撑元件下端，磁致负刚度元件和多层板式电涡流阻尼元件均与传动元件连接。本发明利用磁致负刚度元件对多层板式电涡流阻尼元件的耗能增效机制，可实现斜拉索多模态减振效果的显著提升；采用作上下切割磁感线运动的多层板式电涡流阻尼元件，可避免采用作转动切割磁感线运动的旋转式电涡流阻尼元件中旋转构件的惯性质量过大对斜拉索多模态减振效果的显著降低。
Magnetic negative stiffness eddy current damper suitable for multi-mode vibration reduction of super-long cable
一种适用于超长索多模态减振的磁致负刚度电涡流阻尼器
CHENG ZHIPENG (Autor:in) / BI KAIMING (Autor:in) / MA RUISHENG (Autor:in) / ZHANG XIAOHUA (Autor:in) / SONG JIAN (Autor:in) / HUANG ZHONGQIN (Autor:in) / HE CHENRUI (Autor:in) / SONG SUMENG (Autor:in) / JIANG SHAODONG (Autor:in)
11.08.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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